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3. Biallelic variants in HPDL cause pure and complicated hereditary spastic paraplegia.

Author

Wiessner, Manuela, Maroofian, Reza, Ni, Meng-Yuan, Pedroni, Andrea, Müller, Juliane S, Stucka, Rolf, Beetz, Christian, Efthymiou, Stephanie, Santorelli, Filippo M, Alfares, Ahmed A, Zhu, Changlian, Uhrova Meszarosova, Anna, Alehabib, Elham, Bakhtiari, Somayeh, Janecke, Andreas R, Otero, Maria Gabriela, Chen, Jin Yun Helen, Peterson, James T, Strom, Tim M, De Jonghe, Peter, Deconinck, Tine, De Ridder, Willem, De Winter, Jonathan, Pasquariello, Rossella, Ricca, Ivana, Alfadhel, Majid, van de Warrenburg, Bart P, Portier, Ruben, Bergmann, Carsten, Ghasemi Firouzabadi, Saghar, Jin, Sheng Chih, Bilguvar, Kaya, Hamed, Sherifa, Abdelhameed, Mohammed, Haridy, Nourelhoda A, Maqbool, Shazia, Rahman, Fatima, Anwar, Najwa, Carmichael, Jenny, Pagnamenta, Alistair, Wood, Nick W, Tran Mau-Them, Frederic, Haack, Tobias, Di Rocco, Maja, Ceccherini, Isabella, Iacomino, Michele, Zara, Federico, Salpietro, Vincenzo, Scala, Marcello, Rusmini, Marta, Xu, Yiran, Wang, Yinghong, Suzuki, Yasuhiro, Koh, Kishin, Nan, Haitian, Ishiura, Hiroyuki, Tsuji, Shoji, Lambert, Laëtitia, Schmitt, Emmanuelle, Lacaze, Elodie, Küpper, Hanna, Dredge, David, Skraban, Cara, Goldstein, Amy, Willis, Mary JH, Grand, Katheryn, Graham, John M, Lewis, Richard A, Millan, Francisca, Duman, Özgür, Dündar, Nihal, Uyanik, Gökhan, Schöls, Ludger, Nürnberg, Peter, Nürnberg, Gudrun, Catala Bordes, Andrea, Seeman, Pavel, Kuchar, Martin, Darvish, Hossein, Rebelo, Adriana, Bouçanova, Filipa, Medard, Jean-Jacques, Chrast, Roman, Auer-Grumbach, Michaela, Alkuraya, Fowzan S, Shamseldin, Hanan, Al Tala, Saeed, Rezazadeh Varaghchi, Jamileh, Najafi, Maryam, Deschner, Selina, Gläser, Dieter, Hüttel, Wolfgang, Kruer, Michael C, Kamsteeg, Erik-Jan, Takiyama, Yoshihisa, Züchner, Stephan, Baets, Jonathan, Synofzik, Matthis, Schüle, Rebecca, and Horvath, Rita

Subjects
Neurosciences, Neurodegenerative, Genetics, Clinical Research, Aetiology, 2.1 Biological and endogenous factors, Neurological, Animals, Female, Humans, Male, Mice, Mutation, Oxygenases, Pedigree, Rats, Spastic Paraplegia, Hereditary, Zebrafish, hereditary spastic paraplegia, HSP, autosomal recessive, mitochondrial disorder, HPDL, Genomics England Research Consortium, PREPARE network, Medical and Health Sciences, Psychology and Cognitive Sciences, Neurology & Neurosurgery
Abstract

Human 4-hydroxyphenylpyruvate dioxygenase-like (HPDL) is a putative iron-containing non-heme oxygenase of unknown specificity and biological significance. We report 25 families containing 34 individuals with neurological disease associated with biallelic HPDL variants. Phenotypes ranged from juvenile-onset pure hereditary spastic paraplegia to infantile-onset spasticity and global developmental delays, sometimes complicated by episodes of neurological and respiratory decompensation. Variants included bona fide pathogenic truncating changes, although most were missense substitutions. Functionality of variants could not be determined directly as the enzymatic specificity of HPDL is unknown; however, when HPDL missense substitutions were introduced into 4-hydroxyphenylpyruvate dioxygenase (HPPD, an HPDL orthologue), they impaired the ability of HPPD to convert 4-hydroxyphenylpyruvate into homogentisate. Moreover, three additional sets of experiments provided evidence for a role of HPDL in the nervous system and further supported its link to neurological disease: (i) HPDL was expressed in the nervous system and expression increased during neural differentiation; (ii) knockdown of zebrafish hpdl led to abnormal motor behaviour, replicating aspects of the human disease; and (iii) HPDL localized to mitochondria, consistent with mitochondrial disease that is often associated with neurological manifestations. Our findings suggest that biallelic HPDL variants cause a syndrome varying from juvenile-onset pure hereditary spastic paraplegia to infantile-onset spastic tetraplegia associated with global developmental delays.

Published
2021

4. A Solve-RD ClinVar-based reanalysis of 1522 index cases from ERN-ITHACA reveals common pitfalls and misinterpretations in exome sequencing

Author

Abbott, Kristin M., Banka, Siddharth, de Boer, Elke, Ciolfi, Andrea, Clayton-Smith, Jill, Dallapiccola, Bruno, Denommé-Pichon, Anne-Sophie, Faivre, Laurence, Gilissen, Christian, Haack, Tobias B., Havlovicova, Marketa, Hoischen, Alexander, Jackson, Adam, Kerstjens, Mieke, Kleefstra, Tjitske, Martín, Estrella López, Macek, Milan, Jr., Matalonga, Leslie, Maystadt, Isabelle, Morleo, Manuela, Nigro, Vicenzo, Pinelli, Michele, Pizzi, Simone, Posada, Manuel, Radio, Francesca C., Renieri, Alessandra, Riess, Olaf, Rooryck, Caroline, Ryba, Lukas, Agathe, Jean-Madeleine de Sainte, Santen, Gijs W.E., Schwarz, Martin, Tartaglia, Marco, Thauvin, Christel, Torella, Annalaura, Trimouille, Aurélien, Verloes, Alain, Vissers, Lisenka, Vitobello, Antonio, Votypka, Pavel, Zguro, Kristina, Boer, Elke de, Cohen, Enzo, Danis, Daniel, Gao, Fei, Horvath, Rita, Johari, Mridul, Johanson, Lennart, Li, Shuang, Morsy, Heba, Nelson, Isabelle, Paramonov, Ida, te Paske, Iris B.A.W., Robinson, Peter, Savarese, Marco, Steyaert, Wouter, Töpf, Ana, van der Velde, Joeri K., Vandrovcova, Jana, Graessner, Holm, Zurek, Birte, Ellwanger, Kornelia, Ossowski, Stephan, Demidov, German, Sturm, Marc, Schulze-Hentrich, Julia M., Schüle, Rebecca, Xu, Jishu, Kessler, Christoph, Wayand, Melanie, Synofzik, Matthis, Wilke, Carlo, Traschütz, Andreas, Schöls, Ludger, Hengel, Holger, Lerche, Holger, Kegele, Josua, Heutink, Peter, Brunner, Han, Scheffer, Hans, Hoogerbrugge, Nicoline, ‘t Hoen, Peter A.C., Vissers, Lisenka E.L.M., Sablauskas, Karolis, de Voer, Richarda M., Kamsteeg, Erik-Jan, van de Warrenburg, Bart, van Os, Nienke, Paske, Iris te, Janssen, Erik, Steehouwer, Marloes, Yaldiz, Burcu, Brookes, Anthony J., Veal, Colin, Gibson, Spencer, Maddi, Vatsalya, Mehtarizadeh, Mehdi, Riaz, Umar, Warren, Greg, Dizjikan, Farid Yavari, Shorter, Thomas, Straub, Volker, Bettolo, Chiara Marini, Manera, Jordi Diaz, Hambleton, Sophie, Engelhardt, Karin, Alexander, Elizabeth, Duffourd, Yannis, Bruel, Ange-Line, Peyron, Christine, Pélissier, Aurore, Beltran, Sergi, Gut, Ivo Glynne, Laurie, Steven, Piscia, Davide, Papakonstantinou, Anastasios, Bullich, Gemma, Corvo, Alberto, Fernandez-Callejo, Marcos, Hernández, Carles, Picó, Daniel, Lochmüller, Hanns, Gumus, Gulcin, Bros-Facer, Virginie, Rath, Ana, Hanauer, Marc, Lagorce, David, Hongnat, Oscar, Chahdil, Maroua, Lebreton, Emeline, Stevanin, Giovanni, Durr, Alexandra, Davoine, Claire-Sophie, Guillot-Noel, Léna, Heinzmann, Anna, Coarelli, Giulia, Bonne, Gisèle, Evangelista, Teresinha, Allamand, Valérie, Ben Yaou, Rabah, Metay, Corinne, Eymard, Bruno, Atalaia, Antonio, Stojkovic, Tanya, Turnovec, Marek, Thomasová, Dana, Kremliková, Radka Pourová, Franková, Vera, Havlovicová, Markéta, Lišková, Petra, Doležalová, Pavla, Parkinson, Helen, Keane, Thomas, Freeberg, Mallory, Thomas, Coline, Spalding, Dylan, Robert, Glenn, Costa, Alessia, Patch, Christine, Hanna, Mike, Houlden, Henry, Reilly, Mary, Efthymiou, Stephanie, Cali, Elisa, Magrinelli, Francesca, Sisodiya, Sanjay M., Rohrer, Jonathan, Muntoni, Francesco, Zaharieva, Irina, Sarkozy, Anna, Timmerman, Vincent, Baets, Jonathan, de Vries, Geert, De Winter, Jonathan, Beijer, Danique, de Jonghe, Peter, Van de Vondel, Liedewei, De Ridder, Willem, Weckhuysen, Sarah, Nigro, Vincenzo, Mutarelli, Margherita, Varavallo, Alessandra, Banfi, Sandro, Musacchia, Francesco, Piluso, Giulio, Ferlini, Alessandra, Selvatici, Rita, Gualandi, Francesca, Bigoni, Stefania, Rossi, Rachele, Neri, Marcella, Aretz, Stefan, Spier, Isabel, Sommer, Anna Katharina, Peters, Sophia, Oliveira, Carla, Pelaez, Jose Garcia, Matos, Ana Rita, José, Celina São, Ferreira, Marta, Gullo, Irene, Fernandes, Susana, Garrido, Luzia, Ferreira, Pedro, Carneiro, Fátima, Swertz, Morris A., Johansson, Lennart, van der Vries, Gerben, Neerincx, Pieter B., Ruvolo, David, Kerstjens Frederikse, Wilhemina S., Zonneveld-Huijssoon, Eveline, Roelofs-Prins, Dieuwke, van Gijn, Marielle, Köhler, Sebastian, Metcalfe, Alison, Drunat, Séverine, Heron, Delphine, Mignot, Cyril, Keren, Boris, Lacombe, Didier, Trimouille, Aurelien, Capella, Gabriel, Valle, Laura, Holinski-Feder, Elke, Laner, Andreas, Steinke-Lange, Verena, Cilio, Maria-Roberta, Carpancea, Evelina, Depondt, Chantal, Lederer, Damien, Sznajer, Yves, Duerinckx, Sarah, Mary, Sandrine, Macaya, Alfons, Cazurro-Gutiérrez, Ana, Pérez-Dueñas, Belén, Munell, Francina, Jarava, Clara Franco, Masó, Laura Batlle, Marcé-Grau, Anna, Colobran, Roger, Hackman, Peter, Udd, Bjarne, Hemelsoet, Dimitri, Dermaut, Bart, Schuermans, Nika, Poppe, Bruce, Verdin, Hannah, Osorio, Andrés Nascimento, Depienne, Christel, Roos, Andreas, Cordts, Isabell, Deschauer, Marcus, Striano, Pasquale, Zara, Federico, Riva, Antonella, Iacomino, Michele, Uva, Paolo, Scala, Marcello, Scudieri, Paolo, Başak, Ayşe Nazlı, Claeys, Kristl, Boztug, Kaan, Haimel, Matthias, W.E, Gijs, Ruivenkamp, Claudia A.L., Natera de Benito, Daniel, Thompson, Rachel, Polavarapu, Kiran, Grimbacher, Bodo, Zaganas, Ioannis, Kokosali, Evgenia, Lambros, Mathioudakis, Evangeliou, Athanasios, Spilioti, Martha, Kapaki, Elisabeth, Bourbouli, Mara, Radio, Francesca Clementina, Balicza, Peter, Molnar, Maria Judit, De la Paz, Manuel Posada, Sánchez, Eva Bermejo, Delgado, Beatriz Martínez, Alonso García de la Rosa, F. Javier, Schröck, Evelin, Rump, Andreas, Mei, Davide, Vetro, Annalisa, Balestrini, Simona, Guerrini, Renzo, Chinnery, Patrick F., Ratnaike, Thiloka, Schon, Katherine, Maver, Ales, Peterlin, Borut, Münchau, Alexander, Lohmann, Katja, Herzog, Rebecca, Pauly, Martje, May, Patrick, Beeson, David, Cossins, Judith, Furini, Simone, Fallerini, Chiara, Benetti, Elisa, Afenjar, Alexandra, Goldenberg, Alice, Masurel, Alice, Phan, Alice, Dieux-Coeslier, Anne, Fargeot, Anne, Guerrot, Anne-Marie, Toutain, Annick, Molin, Arnaud, Sorlin, Arthur, Putoux, Audrey, Jouret, Béatrice, Laudier, Béatrice, Demeer, Bénédicte, Doray, Bérénice, Bonniaud, Bertille, Isidor, Bertrand, Gilbert-Dussardier, Brigitte, Leheup, Bruno, Reversade, Bruno, Paul, Carle, Vincent-Delorme, Catherine, Neiva, Cecilia, Poirsier, Céline, Quélin, Chloé, Chiaverini, Christine, Coubes, Christine, Francannet, Christine, Colson, Cindy, Desplantes, Claire, Wells, Constance, Goizet, Cyril, Sanlaville, Damien, Amram, Daniel, Lehalle, Daphné, Geneviève, David, Gaillard, Dominique, Zivi, Einat, Sarrazin, Elisabeth, Steichen, Elisabeth, Schaefer, Élise, Lacaze, Elodie, Jacquemin, Emmanuel, Bongers, Ernie, Kilic, Esra, Colin, Estelle, Giuliano, Fabienne, Prieur, Fabienne, Laffargue, Fanny, Morice-Picard, Fanny, Petit, Florence, Cartault, François, Feillet, François, Baujat, Geneviève, Morin, Gilles, Diene, Gwenaëlle, Journel, Hubert, Perthus, Isabelle, Lespinasse, James, Alessandri, Jean-Luc, Amiel, Jeanne, Martinovic, Jelena, Delanne, Julian, Albuisson, Juliette, Lambert, Laëtitia, Perrin, Laurence, Ousager, Lilian Bomme, Van Maldergem, Lionel, Pinson, Lucile, Ruaud, Lyse, Samimi, Mahtab, Bournez, Marie, Bonnet-Dupeyron, Marie Noëlle, Vincent, Marie, Jacquemont, Marie-Line, Cordier-Alex, Marie-Pierre, Gérard-Blanluet, Marion, Willems, Marjolaine, Spodenkiewicz, Marta, Doco-Fenzy, Martine, Rossi, Massimiliano, Renaud, Mathilde, Fradin, Mélanie, Mathieu, Michèle, Holder-Espinasse, Muriel H., Houcinat, Nada, Hanna, Nadine, Leperrier, Nathalie, Chassaing, Nicolas, Philip, Nicole, Boute, Odile, Van Kien, Philippe Khau, Parent, Philippe, Bitoun, Pierre, Sarda, Pierre, Vabres, Pierre, Jouk, Pierre-Simon, Touraine, Renaud, El Chehadeh, Salima, Whalen, Sandra, Marlin, Sandrine, Passemard, Sandrine, Grotto, Sarah, Bellanger, Séverine Audebert, Blesson, Sophie, Nambot, Sophie, Naudion, Sophie, Lyonnet, Stanislas, Odent, Sylvie, Attie-Bitach, Tania, Busa, Tiffany, Drouin-Garraud, Valérie, Layet, Valérie, Bizaoui, Varoona, Cusin, Véronica, Capri, Yline, Alembik, Yves, Jean-Marçais, Nolwenn, López-Martín, Estrella, Macek, Milan, Mencarelli, Maria Antonietta, Moutton, Sébastien, Pfundt, Rolph, Safraou, Hana, Thauvin-Robinet, Christel, Thevenon, Julien, Tran Mau-Them, Frédéric, de Vries, Bert B.A., Willemsen, Marjolein H., and Philippe, Christophe

Published
2023
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5. Autochthonous Cases of Tick-Borne Encephalitis, Belgium, 2020

Author

Stoefs, Anke, Heyndrickx, Leo, de Winter, Jonathan, Coeckelbergh, Evelien, Willekens, Barbara, Alonso-Jimenez, Alicia, Tuttino, Anne-Marie, Geerts, Yvette, Arien, Kevin K., and Van Esbroeck, Marjan

Subjects
Zoonoses -- Case studies, Tick-borne encephalitis -- Case studies, Health
Abstract

We report 3 confirmed autochthonous tick-borne encephalitis cases in Belgium diagnosed during summer 2020. Clinicians should include this viral infection in the differential diagnosis for patients with etiologically unexplained neurologic [...]

Published
2021
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6. Genetic landscape of congenital insensitivity to pain and hereditary sensory and autonomic neuropathies

Author

Lischka, Annette, primary, Eggermann, Katja, additional, Record, Christopher J, additional, Dohrn, Maike F, additional, Laššuthová, Petra, additional, Kraft, Florian, additional, Begemann, Matthias, additional, Dey, Daniela, additional, Eggermann, Thomas, additional, Beijer, Danique, additional, Šoukalová, Jana, additional, Laura, Matilde, additional, Rossor, Alexander M, additional, Mazanec, Radim, additional, Van Lent, Jonas, additional, Tomaselli, Pedro J, additional, Ungelenk, Martin, additional, Debus, Karlien Y, additional, Feely, Shawna M E, additional, Gläser, Dieter, additional, Jagadeesh, Sujatha, additional, Martin, Madelena, additional, Govindaraj, Geeta M, additional, Singhi, Pratibha, additional, Baineni, Revanth, additional, Biswal, Niranjan, additional, Ibarra-Ramírez, Marisol, additional, Bonduelle, Maryse, additional, Gess, Burkhard, additional, Sánchez, Juan Romero, additional, Suthar, Renu, additional, Udani, Vrajesh, additional, Nalini, Atchayaram, additional, Unnikrishnan, Gopikrishnan, additional, Junior, Wilson Marques, additional, Mercier, Sandra, additional, Procaccio, Vincent, additional, Bris, Céline, additional, Suresh, Beena, additional, Reddy, Vaishnavi, additional, Skorupinska, Mariola, additional, Bonello-Palot, Nathalie, additional, Mochel, Fanny, additional, Dahl, Georg, additional, Sasidharan, Karthika, additional, Devassikutty, Fiji M, additional, Nampoothiri, Sheela, additional, Doriqui, Maria J Rodovalho, additional, Müller-Felber, Wolfgang, additional, Vill, Katharina, additional, Haack, Tobias B, additional, Dufke, Andreas, additional, Abele, Michael, additional, Stucka, Rolf, additional, Siddiqi, Saima, additional, Ullah, Noor, additional, Spranger, Stephanie, additional, Chiabrando, Deborah, additional, Bolgül, Behiye S, additional, Parman, Yesim, additional, Seeman, Pavel, additional, Lampert, Angelika, additional, Schulz, Jörg B, additional, Wood, John N, additional, Cox, James J, additional, Auer-Grumbach, Michaela, additional, Timmerman, Vincent, additional, de Winter, Jonathan, additional, Themistocleous, Andreas C, additional, Shy, Michael, additional, Bennett, David L, additional, Baets, Jonathan, additional, Hübner, Christian A, additional, Leipold, Enrico, additional, Züchner, Stephan, additional, Elbracht, Miriam, additional, Çakar, Arman, additional, Senderek, Jan, additional, Hornemann, Thorsten, additional, Woods, C Geoffrey, additional, Reilly, Mary M, additional, and Kurth, Ingo, additional

Published
2023
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7. A Solve-RD ClinVar-based reanalysis of 1522 index cases from ERN-ITHACA reveals common pitfalls and misinterpretations in exome sequencing

Author

Luxembourg Centre for Systems Biomedicine (LCSB): Bioinformatics Core (R. Schneider Group) [research center], Denommé-Pichon, Anne-Sophie, Matalonga, Leslie, de Boer, Elke, Jackson, Adam, Benetti, Elisa, Banka, Siddharth, Bruel, Ange-Line, Ciolfi, Andrea, Clayton-Smith, Jill, Dallapiccola, Bruno, Duffourd, Yannis, Ellwanger, Kornelia, Fallerini, Chiara, Gilissen, Christian, Graessner, Holm, Haack, Tobias B., Havlovicova, Marketa, Hoischen, Alexander, Jean-Marçais, Nolwenn, Kleefstra, Tjitske, López-Martín, Estrella, Macek, Milan, Mencarelli, Maria Antonietta, Moutton, Sébastien, Pfundt, Rolph, Pizzi, Simone, Posada, Manuel, Radio, Francesca Clementina, Renieri, Alessandra, Rooryck, Caroline, Ryba, Lukas, Safraou, Hana, Schwarz, Martin, Tartaglia, Marco, Thauvin-Robinet, Christel, Thevenon, Julien, Tran Mau-Them, Frédéric, Trimouille, Aurélien, Votypka, Pavel, de Vries, Bert B. A., Willemsen, Marjolein H., Zurek, Birte, Verloes, Alain, Philippe, Christophe, Abbott, Kristin M., Faivre, Laurence, Kerstjens, Mieke, Martín, Estrella López, Macek Jr., Milan, Maystadt, Isabelle, Morleo, Manuela, Nigro, Vicenzo, Pinelli, Michele, Radio, Francesca C., Riess, Olaf, Agathe, Jean-Madeleine De Sainte, Santen, Gijs W. E., Thauvin, Christel, Torella, Annalaura, Vissers, Lisenka, Vitobello, Antonio, Zguro, Kristina, Boer, Elke De, Cohen, Enzo, Danis, Daniel, Gao, Fei, Horvath, Rita, Johari, Mridul, Johanson, Lennart, Li, Shuang, Morsy, Heba, Nelson, Isabelle, Paramonov, Ida, te Paske, Iris B. A. W., Robinson, Peter, Savarese, Marco, Steyaert, Wouter, Töpf, Ana, van der Velde, Joeri K., Vandrovcova, Jana, Ossowski, Stephan, Demidov, German, Sturm, Marc, Schulze-Hentrich, Julia M., Schüle, Rebecca, Xu, Jishu, Kessler, Christoph, Wayand, Melanie, Synofzik, Matthis, Wilke, Carlo, Traschütz, Andreas, Schöls, Ludger, Hengel, Holger, Lerche, Holger, Kegele, Josua, Heutink, Peter, Brunner, Han, Scheffer, Hans, Hoogerbrugge, Nicoline, `t Hoen, Peter A. C., Vissers, Lisenka E. L. M., Sablauskas, Karolis, de Voer, Richarda M., Kamsteeg, Erik-Jan, van de Warrenburg, Bart, van Os, Nienke, Paske, Iris Te, Janssen, Erik, Steehouwer, Marloes, Yaldiz, Burcu, Brookes, Anthony J., Veal, Colin, Gibson, Spencer, Maddi, Vatsalya, Mehtarizadeh, Mehdi, Riaz, Umar, Warren, Greg, Dizjikan, Farid Yavari, Shorter, Thomas, Straub, Volker, Bettolo, Chiara Marini, Manera, Jordi Diaz, Hambleton, Sophie, Engelhardt, Karin, Alexander, Elizabeth, Peyron, Christine, Pélissier, Aurore, Beltran, Sergi, Gut, Ivo Glynne, Laurie, Steven, Piscia, Davide, Papakonstantinou, Anastasios, Bullich, Gemma, Corvo, Alberto, Fernandez-Callejo, Marcos, Hernández, Carles, Picó, Daniel, Lochmüller, Hanns, Gumus, Gulcin, Bros-Facer, Virginie, Rath, Ana, Hanauer, Marc, Lagorce, David, Hongnat, Oscar, Chahdil, Maroua, Lebreton, Emeline, Stevanin, Giovanni, Durr, Alexandra, Davoine, Claire-Sophie, Guillot-Noel, Léna, Heinzmann, Anna, Coarelli, Giulia, Bonne, Gisèle, Evangelista, Teresinha, Allamand, Valérie, Ben Yaou, Rabah, Metay, Corinne, Eymard, Bruno, Atalaia, Antonio, Stojkovic, Tanya, Turnovec, Marek, Thomasová, Dana, Kremliková, Radka Pourová, Franková, Vera, Havlovicová, Markéta, Li\vsková, Petra, Dole\vzalová, Pavla, Parkinson, Helen, Keane, Thomas, Freeberg, Mallory, Thomas, Coline, Spalding, Dylan, Robert, Glenn, Costa, Alessia, Patch, Christine, Hanna, Mike, Houlden, Henry, Reilly, Mary, Efthymiou, Stephanie, Cali, Elisa, Magrinelli, Francesca, Sisodiya, Sanjay M., Rohrer, Jonathan, Muntoni, Francesco, Zaharieva, Irina, Sarkozy, Anna, Timmerman, Vincent, Baets, Jonathan, de Vries, Geert, De Winter, Jonathan, Beijer, Danique, de Jonghe, Peter, Van de Vondel, Liedewei, De Ridder, Willem, Weckhuysen, Sarah, Nigro, Vincenzo, Mutarelli, Margherita, Varavallo, Alessandra, Banfi, Sandro, Musacchia, Francesco, Piluso, Giulio, Ferlini, Alessandra, Selvatici, Rita, Gualandi, Francesca, Bigoni, Stefania, Rossi, Rachele, Neri, Marcella, Aretz, Stefan, Spier, Isabel, Sommer, Anna Katharina, Peters, Sophia, Oliveira, Carla, Pelaez, Jose Garcia, Matos, Ana Rita, José, Celina São, Ferreira, Marta, Gullo, Irene, Fernandes, Susana, Garrido, Luzia, Ferreira, Pedro, Carneiro, Fátima, Swertz, Morris A., Johansson, Lennart, van der Vries, Gerben, Neerincx, Pieter B., Ruvolo, David, Kerstjens Frederikse, Wilhemina S., Zonneveld-Huijssoon, Eveline, Roelofs-Prins, Dieuwke, van Gijn, Marielle, Köhler, Sebastian, Metcalfe, Alison, Drunat, Séverine, Heron, Delphine, Mignot, Cyril, Keren, Boris, Lacombe, Didier, Trimouille, Aurelien, Capella, Gabriel, Valle, Laura, Holinski-Feder, Elke, Laner, Andreas, Steinke-Lange, Verena, Cilio, Maria-Roberta, Carpancea, Evelina, Depondt, Chantal, Lederer, Damien, Sznajer, Yves, Duerinckx, Sarah, Mary, Sandrine, Macaya, Alfons, Cazurro-Gutiérrez, Ana, Pérez-Dueñas, Belén, Munell, Francina, Jarava, Clara Franco, Masó, Laura Batlle, Marcé-Grau, Anna, Colobran, Roger, Hackman, Peter, Udd, Bjarne, Hemelsoet, Dimitri, Dermaut, Bart, Schuermans, Nika, Poppe, Bruce, Verdin, Hannah, Osorio, Andrés Nascimento, Depienne, Christel, Roos, Andreas, Cordts, Isabell, Deschauer, Marcus, Striano, Pasquale, Zara, Federico, Riva, Antonella, Iacomino, Michele, Uva, Paolo, Scala, Marcello, Scudieri, Paolo, Claeys, Kristl, Boztug, Kaan, Haimel, Matthias, W.E, Gijs, Ruivenkamp, Claudia A. L., Natera de Benito, Daniel, Thompson, Rachel, Polavarapu, Kiran, Grimbacher, Bodo, Zaganas, Ioannis, Kokosali, Evgenia, Lambros, Mathioudakis, Evangeliou, Athanasios, Spilioti, Martha, Kapaki, Elisabeth, Bourbouli, Mara, Balicza, Peter, Molnar, Maria Judit, De la Paz, Manuel Posada, Sánchez, Eva Bermejo, Delgado, Beatriz Martínez, Alonso García de la Rosa, F. Javier, Schröck, Evelin, Rump, Andreas, Mei, Davide, Vetro, Annalisa, Balestrini, Simona, Guerrini, Renzo, Chinnery, Patrick F., Ratnaike, Thiloka, Schon, Katherine, Maver, Ales, Peterlin, Borut, Münchau, Alexander, Lohmann, Katja, Herzog, Rebecca, Pauly, Martje, May, Patrick, Beeson, David, Cossins, Judith, Furini, Simone, Afenjar, Alexandra, Goldenberg, Alice, Masurel, Alice, Phan, Alice, Dieux-Coeslier, Anne, Fargeot, Anne, Guerrot, Anne-Marie, Toutain, Annick, Molin, Arnaud, Sorlin, Arthur, Putoux, Audrey, Jouret, Béatrice, Laudier, Béatrice, Demeer, Bénédicte, Doray, Bérénice, Bonniaud, Bertille, Isidor, Bertrand, Gilbert-Dussardier, Brigitte, Leheup, Bruno, Reversade, Bruno, Paul, Carle, Vincent-Delorme, Catherine, Neiva, Cecilia, Poirsier, Céline, Quélin, Chloé, Chiaverini, Christine, Coubes, Christine, Francannet, Christine, Colson, Cindy, Desplantes, Claire, Wells, Constance, Goizet, Cyril, Sanlaville, Damien, Amram, Daniel, Lehalle, Daphné, Geneviève, David, Gaillard, Dominique, Zivi, Einat, Sarrazin, Elisabeth, Steichen, Elisabeth, Schaefer, Élise, Lacaze, Elodie, Jacquemin, Emmanuel, Bongers, Ernie, Kilic, Esra, Colin, Estelle, Giuliano, Fabienne, Prieur, Fabienne, Laffargue, Fanny, Morice-Picard, Fanny, Petit, Florence, Cartault, François, Feillet, François, Baujat, Geneviève, Morin, Gilles, Diene, Gwenaëlle, Journel, Hubert, Perthus, Isabelle, Lespinasse, James, Alessandri, Jean-Luc, Amiel, Jeanne, Martinovic, Jelena, Delanne, Julian, Albuisson, Juliette, Lambert, Laëtitia, Perrin, Laurence, Ousager, Lilian Bomme, Van Maldergem, Lionel, Pinson, Lucile, Ruaud, Lyse, Samimi, Mahtab, Bournez, Marie, Bonnet-Dupeyron, Marie Noëlle, Vincent, Marie, Jacquemont, Marie-Line, Cordier-Alex, Marie-Pierre, Gérard-Blanluet, Marion, Willems, Marjolaine, Spodenkiewicz, Marta, Doco-Fenzy, Martine, Rossi, Massimiliano, Renaud, Mathilde, Fradin, Mélanie, Mathieu, Michèle, Holder-Espinasse, Muriel H., Houcinat, Nada, Hanna, Nadine, Leperrier, Nathalie, Chassaing, Nicolas, Philip, Nicole, Boute, Odile, Van Kien, Philippe Khau, Parent, Philippe, Bitoun, Pierre, Sarda, Pierre, Vabres, Pierre, Jouk, Pierre-Simon, Touraine, Renaud, El Chehadeh, Salima, Whalen, Sandra, Marlin, Sandrine, Passemard, Sandrine, Grotto, Sarah, Bellanger, Séverine Audebert, Blesson, Sophie, Nambot, Sophie, Naudion, Sophie, Lyonnet, Stanislas, Odent, Sylvie, Attie-Bitach, Tania, Busa, Tiffany, Drouin-Garraud, Valérie, Layet, Valérie, Bizaoui, Varoona, Cusin, Véronica, Capri, Yline, Alembik, Yves, Luxembourg Centre for Systems Biomedicine (LCSB): Bioinformatics Core (R. Schneider Group) [research center], Denommé-Pichon, Anne-Sophie, Matalonga, Leslie, de Boer, Elke, Jackson, Adam, Benetti, Elisa, Banka, Siddharth, Bruel, Ange-Line, Ciolfi, Andrea, Clayton-Smith, Jill, Dallapiccola, Bruno, Duffourd, Yannis, Ellwanger, Kornelia, Fallerini, Chiara, Gilissen, Christian, Graessner, Holm, Haack, Tobias B., Havlovicova, Marketa, Hoischen, Alexander, Jean-Marçais, Nolwenn, Kleefstra, Tjitske, López-Martín, Estrella, Macek, Milan, Mencarelli, Maria Antonietta, Moutton, Sébastien, Pfundt, Rolph, Pizzi, Simone, Posada, Manuel, Radio, Francesca Clementina, Renieri, Alessandra, Rooryck, Caroline, Ryba, Lukas, Safraou, Hana, Schwarz, Martin, Tartaglia, Marco, Thauvin-Robinet, Christel, Thevenon, Julien, Tran Mau-Them, Frédéric, Trimouille, Aurélien, Votypka, Pavel, de Vries, Bert B. A., Willemsen, Marjolein H., Zurek, Birte, Verloes, Alain, Philippe, Christophe, Abbott, Kristin M., Faivre, Laurence, Kerstjens, Mieke, Martín, Estrella López, Macek Jr., Milan, Maystadt, Isabelle, Morleo, Manuela, Nigro, Vicenzo, Pinelli, Michele, Radio, Francesca C., Riess, Olaf, Agathe, Jean-Madeleine De Sainte, Santen, Gijs W. E., Thauvin, Christel, Torella, Annalaura, Vissers, Lisenka, Vitobello, Antonio, Zguro, Kristina, Boer, Elke De, Cohen, Enzo, Danis, Daniel, Gao, Fei, Horvath, Rita, Johari, Mridul, Johanson, Lennart, Li, Shuang, Morsy, Heba, Nelson, Isabelle, Paramonov, Ida, te Paske, Iris B. A. W., Robinson, Peter, Savarese, Marco, Steyaert, Wouter, Töpf, Ana, van der Velde, Joeri K., Vandrovcova, Jana, Ossowski, Stephan, Demidov, German, Sturm, Marc, Schulze-Hentrich, Julia M., Schüle, Rebecca, Xu, Jishu, Kessler, Christoph, Wayand, Melanie, Synofzik, Matthis, Wilke, Carlo, Traschütz, Andreas, Schöls, Ludger, Hengel, Holger, Lerche, Holger, Kegele, Josua, Heutink, Peter, Brunner, Han, Scheffer, Hans, Hoogerbrugge, Nicoline, `t Hoen, Peter A. C., Vissers, Lisenka E. L. M., Sablauskas, Karolis, de Voer, Richarda M., Kamsteeg, Erik-Jan, van de Warrenburg, Bart, van Os, Nienke, Paske, Iris Te, Janssen, Erik, Steehouwer, Marloes, Yaldiz, Burcu, Brookes, Anthony J., Veal, Colin, Gibson, Spencer, Maddi, Vatsalya, Mehtarizadeh, Mehdi, Riaz, Umar, Warren, Greg, Dizjikan, Farid Yavari, Shorter, Thomas, Straub, Volker, Bettolo, Chiara Marini, Manera, Jordi Diaz, Hambleton, Sophie, Engelhardt, Karin, Alexander, Elizabeth, Peyron, Christine, Pélissier, Aurore, Beltran, Sergi, Gut, Ivo Glynne, Laurie, Steven, Piscia, Davide, Papakonstantinou, Anastasios, Bullich, Gemma, Corvo, Alberto, Fernandez-Callejo, Marcos, Hernández, Carles, Picó, Daniel, Lochmüller, Hanns, Gumus, Gulcin, Bros-Facer, Virginie, Rath, Ana, Hanauer, Marc, Lagorce, David, Hongnat, Oscar, Chahdil, Maroua, Lebreton, Emeline, Stevanin, Giovanni, Durr, Alexandra, Davoine, Claire-Sophie, Guillot-Noel, Léna, Heinzmann, Anna, Coarelli, Giulia, Bonne, Gisèle, Evangelista, Teresinha, Allamand, Valérie, Ben Yaou, Rabah, Metay, Corinne, Eymard, Bruno, Atalaia, Antonio, Stojkovic, Tanya, Turnovec, Marek, Thomasová, Dana, Kremliková, Radka Pourová, Franková, Vera, Havlovicová, Markéta, Li\vsková, Petra, Dole\vzalová, Pavla, Parkinson, Helen, Keane, Thomas, Freeberg, Mallory, Thomas, Coline, Spalding, Dylan, Robert, Glenn, Costa, Alessia, Patch, Christine, Hanna, Mike, Houlden, Henry, Reilly, Mary, Efthymiou, Stephanie, Cali, Elisa, Magrinelli, Francesca, Sisodiya, Sanjay M., Rohrer, Jonathan, Muntoni, Francesco, Zaharieva, Irina, Sarkozy, Anna, Timmerman, Vincent, Baets, Jonathan, de Vries, Geert, De Winter, Jonathan, Beijer, Danique, de Jonghe, Peter, Van de Vondel, Liedewei, De Ridder, Willem, Weckhuysen, Sarah, Nigro, Vincenzo, Mutarelli, Margherita, Varavallo, Alessandra, Banfi, Sandro, Musacchia, Francesco, Piluso, Giulio, Ferlini, Alessandra, Selvatici, Rita, Gualandi, Francesca, Bigoni, Stefania, Rossi, Rachele, Neri, Marcella, Aretz, Stefan, Spier, Isabel, Sommer, Anna Katharina, Peters, Sophia, Oliveira, Carla, Pelaez, Jose Garcia, Matos, Ana Rita, José, Celina São, Ferreira, Marta, Gullo, Irene, Fernandes, Susana, Garrido, Luzia, Ferreira, Pedro, Carneiro, Fátima, Swertz, Morris A., Johansson, Lennart, van der Vries, Gerben, Neerincx, Pieter B., Ruvolo, David, Kerstjens Frederikse, Wilhemina S., Zonneveld-Huijssoon, Eveline, Roelofs-Prins, Dieuwke, van Gijn, Marielle, Köhler, Sebastian, Metcalfe, Alison, Drunat, Séverine, Heron, Delphine, Mignot, Cyril, Keren, Boris, Lacombe, Didier, Trimouille, Aurelien, Capella, Gabriel, Valle, Laura, Holinski-Feder, Elke, Laner, Andreas, Steinke-Lange, Verena, Cilio, Maria-Roberta, Carpancea, Evelina, Depondt, Chantal, Lederer, Damien, Sznajer, Yves, Duerinckx, Sarah, Mary, Sandrine, Macaya, Alfons, Cazurro-Gutiérrez, Ana, Pérez-Dueñas, Belén, Munell, Francina, Jarava, Clara Franco, Masó, Laura Batlle, Marcé-Grau, Anna, Colobran, Roger, Hackman, Peter, Udd, Bjarne, Hemelsoet, Dimitri, Dermaut, Bart, Schuermans, Nika, Poppe, Bruce, Verdin, Hannah, Osorio, Andrés Nascimento, Depienne, Christel, Roos, Andreas, Cordts, Isabell, Deschauer, Marcus, Striano, Pasquale, Zara, Federico, Riva, Antonella, Iacomino, Michele, Uva, Paolo, Scala, Marcello, Scudieri, Paolo, Claeys, Kristl, Boztug, Kaan, Haimel, Matthias, W.E, Gijs, Ruivenkamp, Claudia A. L., Natera de Benito, Daniel, Thompson, Rachel, Polavarapu, Kiran, Grimbacher, Bodo, Zaganas, Ioannis, Kokosali, Evgenia, Lambros, Mathioudakis, Evangeliou, Athanasios, Spilioti, Martha, Kapaki, Elisabeth, Bourbouli, Mara, Balicza, Peter, Molnar, Maria Judit, De la Paz, Manuel Posada, Sánchez, Eva Bermejo, Delgado, Beatriz Martínez, Alonso García de la Rosa, F. Javier, Schröck, Evelin, Rump, Andreas, Mei, Davide, Vetro, Annalisa, Balestrini, Simona, Guerrini, Renzo, Chinnery, Patrick F., Ratnaike, Thiloka, Schon, Katherine, Maver, Ales, Peterlin, Borut, Münchau, Alexander, Lohmann, Katja, Herzog, Rebecca, Pauly, Martje, May, Patrick, Beeson, David, Cossins, Judith, Furini, Simone, Afenjar, Alexandra, Goldenberg, Alice, Masurel, Alice, Phan, Alice, Dieux-Coeslier, Anne, Fargeot, Anne, Guerrot, Anne-Marie, Toutain, Annick, Molin, Arnaud, Sorlin, Arthur, Putoux, Audrey, Jouret, Béatrice, Laudier, Béatrice, Demeer, Bénédicte, Doray, Bérénice, Bonniaud, Bertille, Isidor, Bertrand, Gilbert-Dussardier, Brigitte, Leheup, Bruno, Reversade, Bruno, Paul, Carle, Vincent-Delorme, Catherine, Neiva, Cecilia, Poirsier, Céline, Quélin, Chloé, Chiaverini, Christine, Coubes, Christine, Francannet, Christine, Colson, Cindy, Desplantes, Claire, Wells, Constance, Goizet, Cyril, Sanlaville, Damien, Amram, Daniel, Lehalle, Daphné, Geneviève, David, Gaillard, Dominique, Zivi, Einat, Sarrazin, Elisabeth, Steichen, Elisabeth, Schaefer, Élise, Lacaze, Elodie, Jacquemin, Emmanuel, Bongers, Ernie, Kilic, Esra, Colin, Estelle, Giuliano, Fabienne, Prieur, Fabienne, Laffargue, Fanny, Morice-Picard, Fanny, Petit, Florence, Cartault, François, Feillet, François, Baujat, Geneviève, Morin, Gilles, Diene, Gwenaëlle, Journel, Hubert, Perthus, Isabelle, Lespinasse, James, Alessandri, Jean-Luc, Amiel, Jeanne, Martinovic, Jelena, Delanne, Julian, Albuisson, Juliette, Lambert, Laëtitia, Perrin, Laurence, Ousager, Lilian Bomme, Van Maldergem, Lionel, Pinson, Lucile, Ruaud, Lyse, Samimi, Mahtab, Bournez, Marie, Bonnet-Dupeyron, Marie Noëlle, Vincent, Marie, Jacquemont, Marie-Line, Cordier-Alex, Marie-Pierre, Gérard-Blanluet, Marion, Willems, Marjolaine, Spodenkiewicz, Marta, Doco-Fenzy, Martine, Rossi, Massimiliano, Renaud, Mathilde, Fradin, Mélanie, Mathieu, Michèle, Holder-Espinasse, Muriel H., Houcinat, Nada, Hanna, Nadine, Leperrier, Nathalie, Chassaing, Nicolas, Philip, Nicole, Boute, Odile, Van Kien, Philippe Khau, Parent, Philippe, Bitoun, Pierre, Sarda, Pierre, Vabres, Pierre, Jouk, Pierre-Simon, Touraine, Renaud, El Chehadeh, Salima, Whalen, Sandra, Marlin, Sandrine, Passemard, Sandrine, Grotto, Sarah, Bellanger, Séverine Audebert, Blesson, Sophie, Nambot, Sophie, Naudion, Sophie, Lyonnet, Stanislas, Odent, Sylvie, Attie-Bitach, Tania, Busa, Tiffany, Drouin-Garraud, Valérie, Layet, Valérie, Bizaoui, Varoona, Cusin, Véronica, Capri, Yline, and Alembik, Yves

Abstract

Purpose Within the Solve-RD project (https://solve-rd.eu/), the European Reference Network for Intellectual disability, TeleHealth, Autism and Congenital Anomalies aimed to investigate whether a reanalysis of exomes from unsolved cases based on ClinVar annotations could establish additional diagnoses. We present the results of the “ClinVar low-hanging fruit” reanalysis, reasons for the failure of previous analyses, and lessons learned. Methods Data from the first 3576 exomes (1522 probands and 2054 relatives) collected from European Reference Network for Intellectual disability, TeleHealth, Autism and Congenital Anomalies was reanalyzed by the Solve-RD consortium by evaluating for the presence of single-nucleotide variant, and small insertions and deletions already reported as (likely) pathogenic in ClinVar. Variants were filtered according to frequency, genotype, and mode of inheritance and reinterpreted. Results We identified causal variants in 59 cases (3.9%), 50 of them also raised by other approaches and 9 leading to new diagnoses, highlighting interpretation challenges: variants in genes not known to be involved in human disease at the time of the first analysis, misleading genotypes, or variants undetected by local pipelines (variants in off-target regions, low quality filters, low allelic balance, or high frequency). Conclusion The “ClinVar low-hanging fruit” analysis represents an effective, fast, and easy approach to recover causal variants from exome sequencing data, herewith contributing to the reduction of the diagnostic deadlock.

Published
2023

8. Twist exome capture allows for lower average sequence coverage in clinical exome sequencing

Author

Luxembourg Centre for Systems Biomedicine (LCSB): Bioinformatics Core (R. Schneider Group) [research center], Yaldiz, Burcu, Kucuk, Erdi, Hampstead, Juliet, Hofste, Tom, Pfundt, Rolph, Corominas Galbany, Jordi, Rinne, Tuula, Yntema, Helger G., Hoischen, Alexander, Nelen, Marcel, Gilissen, Christian, consortium, Solve-R. D., Riess, Olaf, Haack, Tobias B., Graessner, Holm, Zurek, Birte, Ellwanger, Kornelia, Ossowski, Stephan, Demidov, German, Sturm, Marc, Schulze-Hentrich, Julia M., Schüle, Rebecca, Xu, Jishu, Kessler, Christoph, Wayand, Melanie, Synofzik, Matthis, Wilke, Carlo, Traschütz, Andreas, Schöls, Ludger, Hengel, Holger, Lerche, Holger, Kegele, Josua, Heutink, Peter, Brunner, Han, Scheffer, Hans, Hoogerbrugge, Nicoline, Hoen, Peter A. C. T, Vissers, Lisenka E. L. M., Steyaert, Wouter, Sablauskas, Karolis, de Voer, Richarda M., Kamsteeg, Erik-Jan, van de Warrenburg, Bart, van Os, Nienke, te Paske, Iris, Janssen, Erik, de Boer, Elke, Steehouwer, Marloes, Kleefstra, Tjitske, Brookes, Anthony J., Veal, Colin, Gibson, Spencer, Maddi, Vatsalya, Mehtarizadeh, Mehdi, Riaz, Umar, Warren, Greg, Dizjikan, Farid Yavari, Shorter, Thomas, Töpf, Ana, Straub, Volker, Bettolo, Chiara Marini, Manera, Jordi Diaz, Hambleton, Sophie, Engelhardt, Karin, Clayton-Smith, Jill, Banka, Siddharth, Alexander, Elizabeth, Jackson, Adam, Faivre, Laurence, Thauvin, Christel, Vitobello, Antonio, Denommé-Pichon, Anne-Sophie, Duffourd, Yannis, Bruel, Ange-Line, Peyron, Christine, Pélissier, Aurore, Beltran, Sergi, Gut, Ivo Glynne, Laurie, Steven, Piscia, Davide, Matalonga, Leslie, Papakonstantinou, Anastasios, Bullich, Gemma, Corvo, Alberto, Fernandez-Callejo, Marcos, Hernández, Carles, Picó, Daniel, Paramonov, Ida, Lochmüller, Hanns, Gumus, Gulcin, Bros-Facer, Virginie, Rath, Ana, Hanauer, Marc, Lagorce, David, Hongnat, Oscar, Chahdil, Maroua, Lebreton, Emeline, Stevanin, Giovanni, Durr, Alexandra, Davoine, Claire-Sophie, Guillot-Noel, Léna, Heinzmann, Anna, Coarelli, Giulia, Bonne, Gisèle, Evangelista, Teresinha, Allamand, Valérie, Nelson, Isabelle, Yaou, Rabah Ben, Metay, Corinne, Eymard, Bruno, Cohen, Enzo, Atalaia, Antonio, Stojkovic, Tanya, Macek, Milan, Turnovec, Marek, Thomasová, Dana, Kremliková, Radka Pourová, Franková, Vera, Havlovicová, Markéta, Lišková, Petra, Doležalová, Pavla, Parkinson, Helen, Keane, Thomas, Freeberg, Mallory, Thomas, Coline, Spalding, Dylan, Robinson, Peter, Danis, Daniel, Robert, Glenn, Costa, Alessia, Patch, Christine, Hanna, Mike, Houlden, Henry, Reilly, Mary, Vandrovcova, Jana, Efthymiou, Stephanie, Morsy, Heba, Cali, Elisa, Magrinelli, Francesca, Sisodiya, Sanjay M., Rohrer, Jonathan, Muntoni, Francesco, Zaharieva, Irina, Sarkozy, Anna, Timmerman, Vincent, Baets, Jonathan, de Vries, Geert, De Winter, Jonathan, Beijer, Danique, de Jonghe, Peter, Van de Vondel, Liedewei, De Ridder, Willem, Weckhuysen, Sarah, Nigro, Vincenzo, Mutarelli, Margherita, Morleo, Manuela, Pinelli, Michele, Varavallo, Alessandra, Banfi, Sandro, Torella, Annalaura, Musacchia, Francesco, Piluso, Giulio, Ferlini, Alessandra, Selvatici, Rita, Gualandi, Francesca, Bigoni, Stefania, Rossi, Rachele, Neri, Marcella, Aretz, Stefan, Spier, Isabel, Sommer, Anna Katharina, Peters, Sophia, Oliveira, Carla, Pelaez, Jose Garcia, Matos, Ana Rita, José, Celina São, Ferreira, Marta, Gullo, Irene, Fernandes, Susana, Garrido, Luzia, Ferreira, Pedro, Carneiro, Fátima, Swertz, Morris A., Johansson, Lennart, van der Velde, Joeri K., van der Vries, Gerben, Neerincx, Pieter B., Ruvolo, David, Abbott, Kristin M., Frederikse, Wilhemina Skerstjens, Zonneveld-Huijssoon, Eveline, Roelofs-Prins, Dieuwke, van Gijn, Marielle, Köhler, Sebastian, Metcalfe, Alison, Verloes, Alain, Drunat, Séverine, Heron, Delphine, Mignot, Cyril, Keren, Boris, de Sainte Agathe, Jean-Madeleine, Rooryck, Caroline, Lacombe, Didier, Trimouille, Aurelien, De la Paz, Manuel Posada, Sánchez, Eva Bermejo, Martín, Estrella López, Delgado, Beatriz Martínez, de la Rosa, F. Javier Alonso García, Ciolfi, Andrea, Dallapiccola, Bruno, Pizzi, Simone, Radio, Francesca Clementina, Tartaglia, Marco, Renieri, Alessandra, Furini, Simone, Fallerini, Chiara, Benetti, Elisa, Balicza, Peter, Molnar, Maria Judit, Maver, Ales, Peterlin, Borut, Münchau, Alexander, Lohmann, Katja, Herzog, Rebecca, Pauly, Martje, Macaya, Alfons, Cazurro-Gutiérrez, Ana, Pérez-Dueñas, Belén, Munell, Francina, Jarava, Clara Franco, Masó, Laura Batlle, Marcé-Grau, Anna, Colobran, Roger, Osorio, Andrés Nascimento, de Benito, Daniel Natera, Thompson, Rachel, Polavarapu, Kiran, Grimbacher, Bodo, Beeson, David, Cossins, Judith, Hackman, Peter, Johari, Mridul, Savarese, Marco, Udd, Bjarne, Horvath, Rita, Chinnery, Patrick F., Ratnaike, Thiloka, Gao, Fei, Schon, Katherine, Capella, Gabriel, Valle, Laura, Holinski-Feder, Elke, Laner, Andreas, Steinke-Lange, Verena, Schröck, Evelin, Rump, Andreas, Başak, Ayşe Nazlı, Hemelsoet, Dimitri, Dermaut, Bart, Schuermans, Nika, Poppe, Bruce, Verdin, Hannah, Mei, Davide, Vetro, Annalisa, Balestrini, Simona, Guerrini, Renzo, Claeys, Kristl, Santen, Gijs W. E., Bijlsma, Emilia K., Hoffer, Mariette J. V., Ruivenkamp, Claudia A. L., Boztug, Kaan, Haimel, Matthias, Maystadt, Isabelle, Cordts, Isabelle, Deschauer, Marcus, Zaganas, Ioannis, Kokosali, Evgenia, Lambros, Mathioudakis, Evangeliou, Athanasios, Spilioti, Martha, Kapaki, Elisabeth, Bourbouli, Mara, Striano, Pasquale, Zara, Federico, Riva, Antonella, Iacomino, Michele, Uva, Paolo, Scala, Marcello, Scudieri, Paolo, Cilio, Maria-Roberta, Carpancea, Evelina, Depondt, Chantal, Lederer, Damien, Sznajer, Yves, Duerinckx, Sarah, Mary, Sandrine, Depienne, Christel, Roos, Andreas, May, Patrick, Luxembourg Centre for Systems Biomedicine (LCSB): Bioinformatics Core (R. Schneider Group) [research center], Yaldiz, Burcu, Kucuk, Erdi, Hampstead, Juliet, Hofste, Tom, Pfundt, Rolph, Corominas Galbany, Jordi, Rinne, Tuula, Yntema, Helger G., Hoischen, Alexander, Nelen, Marcel, Gilissen, Christian, consortium, Solve-R. D., Riess, Olaf, Haack, Tobias B., Graessner, Holm, Zurek, Birte, Ellwanger, Kornelia, Ossowski, Stephan, Demidov, German, Sturm, Marc, Schulze-Hentrich, Julia M., Schüle, Rebecca, Xu, Jishu, Kessler, Christoph, Wayand, Melanie, Synofzik, Matthis, Wilke, Carlo, Traschütz, Andreas, Schöls, Ludger, Hengel, Holger, Lerche, Holger, Kegele, Josua, Heutink, Peter, Brunner, Han, Scheffer, Hans, Hoogerbrugge, Nicoline, Hoen, Peter A. C. T, Vissers, Lisenka E. L. M., Steyaert, Wouter, Sablauskas, Karolis, de Voer, Richarda M., Kamsteeg, Erik-Jan, van de Warrenburg, Bart, van Os, Nienke, te Paske, Iris, Janssen, Erik, de Boer, Elke, Steehouwer, Marloes, Kleefstra, Tjitske, Brookes, Anthony J., Veal, Colin, Gibson, Spencer, Maddi, Vatsalya, Mehtarizadeh, Mehdi, Riaz, Umar, Warren, Greg, Dizjikan, Farid Yavari, Shorter, Thomas, Töpf, Ana, Straub, Volker, Bettolo, Chiara Marini, Manera, Jordi Diaz, Hambleton, Sophie, Engelhardt, Karin, Clayton-Smith, Jill, Banka, Siddharth, Alexander, Elizabeth, Jackson, Adam, Faivre, Laurence, Thauvin, Christel, Vitobello, Antonio, Denommé-Pichon, Anne-Sophie, Duffourd, Yannis, Bruel, Ange-Line, Peyron, Christine, Pélissier, Aurore, Beltran, Sergi, Gut, Ivo Glynne, Laurie, Steven, Piscia, Davide, Matalonga, Leslie, Papakonstantinou, Anastasios, Bullich, Gemma, Corvo, Alberto, Fernandez-Callejo, Marcos, Hernández, Carles, Picó, Daniel, Paramonov, Ida, Lochmüller, Hanns, Gumus, Gulcin, Bros-Facer, Virginie, Rath, Ana, Hanauer, Marc, Lagorce, David, Hongnat, Oscar, Chahdil, Maroua, Lebreton, Emeline, Stevanin, Giovanni, Durr, Alexandra, Davoine, Claire-Sophie, Guillot-Noel, Léna, Heinzmann, Anna, Coarelli, Giulia, Bonne, Gisèle, Evangelista, Teresinha, Allamand, Valérie, Nelson, Isabelle, Yaou, Rabah Ben, Metay, Corinne, Eymard, Bruno, Cohen, Enzo, Atalaia, Antonio, Stojkovic, Tanya, Macek, Milan, Turnovec, Marek, Thomasová, Dana, Kremliková, Radka Pourová, Franková, Vera, Havlovicová, Markéta, Lišková, Petra, Doležalová, Pavla, Parkinson, Helen, Keane, Thomas, Freeberg, Mallory, Thomas, Coline, Spalding, Dylan, Robinson, Peter, Danis, Daniel, Robert, Glenn, Costa, Alessia, Patch, Christine, Hanna, Mike, Houlden, Henry, Reilly, Mary, Vandrovcova, Jana, Efthymiou, Stephanie, Morsy, Heba, Cali, Elisa, Magrinelli, Francesca, Sisodiya, Sanjay M., Rohrer, Jonathan, Muntoni, Francesco, Zaharieva, Irina, Sarkozy, Anna, Timmerman, Vincent, Baets, Jonathan, de Vries, Geert, De Winter, Jonathan, Beijer, Danique, de Jonghe, Peter, Van de Vondel, Liedewei, De Ridder, Willem, Weckhuysen, Sarah, Nigro, Vincenzo, Mutarelli, Margherita, Morleo, Manuela, Pinelli, Michele, Varavallo, Alessandra, Banfi, Sandro, Torella, Annalaura, Musacchia, Francesco, Piluso, Giulio, Ferlini, Alessandra, Selvatici, Rita, Gualandi, Francesca, Bigoni, Stefania, Rossi, Rachele, Neri, Marcella, Aretz, Stefan, Spier, Isabel, Sommer, Anna Katharina, Peters, Sophia, Oliveira, Carla, Pelaez, Jose Garcia, Matos, Ana Rita, José, Celina São, Ferreira, Marta, Gullo, Irene, Fernandes, Susana, Garrido, Luzia, Ferreira, Pedro, Carneiro, Fátima, Swertz, Morris A., Johansson, Lennart, van der Velde, Joeri K., van der Vries, Gerben, Neerincx, Pieter B., Ruvolo, David, Abbott, Kristin M., Frederikse, Wilhemina Skerstjens, Zonneveld-Huijssoon, Eveline, Roelofs-Prins, Dieuwke, van Gijn, Marielle, Köhler, Sebastian, Metcalfe, Alison, Verloes, Alain, Drunat, Séverine, Heron, Delphine, Mignot, Cyril, Keren, Boris, de Sainte Agathe, Jean-Madeleine, Rooryck, Caroline, Lacombe, Didier, Trimouille, Aurelien, De la Paz, Manuel Posada, Sánchez, Eva Bermejo, Martín, Estrella López, Delgado, Beatriz Martínez, de la Rosa, F. Javier Alonso García, Ciolfi, Andrea, Dallapiccola, Bruno, Pizzi, Simone, Radio, Francesca Clementina, Tartaglia, Marco, Renieri, Alessandra, Furini, Simone, Fallerini, Chiara, Benetti, Elisa, Balicza, Peter, Molnar, Maria Judit, Maver, Ales, Peterlin, Borut, Münchau, Alexander, Lohmann, Katja, Herzog, Rebecca, Pauly, Martje, Macaya, Alfons, Cazurro-Gutiérrez, Ana, Pérez-Dueñas, Belén, Munell, Francina, Jarava, Clara Franco, Masó, Laura Batlle, Marcé-Grau, Anna, Colobran, Roger, Osorio, Andrés Nascimento, de Benito, Daniel Natera, Thompson, Rachel, Polavarapu, Kiran, Grimbacher, Bodo, Beeson, David, Cossins, Judith, Hackman, Peter, Johari, Mridul, Savarese, Marco, Udd, Bjarne, Horvath, Rita, Chinnery, Patrick F., Ratnaike, Thiloka, Gao, Fei, Schon, Katherine, Capella, Gabriel, Valle, Laura, Holinski-Feder, Elke, Laner, Andreas, Steinke-Lange, Verena, Schröck, Evelin, Rump, Andreas, Başak, Ayşe Nazlı, Hemelsoet, Dimitri, Dermaut, Bart, Schuermans, Nika, Poppe, Bruce, Verdin, Hannah, Mei, Davide, Vetro, Annalisa, Balestrini, Simona, Guerrini, Renzo, Claeys, Kristl, Santen, Gijs W. E., Bijlsma, Emilia K., Hoffer, Mariette J. V., Ruivenkamp, Claudia A. L., Boztug, Kaan, Haimel, Matthias, Maystadt, Isabelle, Cordts, Isabelle, Deschauer, Marcus, Zaganas, Ioannis, Kokosali, Evgenia, Lambros, Mathioudakis, Evangeliou, Athanasios, Spilioti, Martha, Kapaki, Elisabeth, Bourbouli, Mara, Striano, Pasquale, Zara, Federico, Riva, Antonella, Iacomino, Michele, Uva, Paolo, Scala, Marcello, Scudieri, Paolo, Cilio, Maria-Roberta, Carpancea, Evelina, Depondt, Chantal, Lederer, Damien, Sznajer, Yves, Duerinckx, Sarah, Mary, Sandrine, Depienne, Christel, Roos, Andreas, and May, Patrick

Abstract

Background Exome and genome sequencing are the predominant techniques in the diagnosis and research of genetic disorders. Sufficient, uniform and reproducible/consistent sequence coverage is a main determinant for the sensitivity to detect single-nucleotide (SNVs) and copy number variants (CNVs). Here we compared the ability to obtain comprehensive exome coverage for recent exome capture kits and genome sequencing techniques. Results We compared three different widely used enrichment kits (Agilent SureSelect Human All Exon V5, Agilent SureSelect Human All Exon V7 and Twist Bioscience) as well as short-read and long-read WGS. We show that the Twist exome capture significantly improves complete coverage and coverage uniformity across coding regions compared to other exome capture kits. Twist performance is comparable to that of both short- and long-read whole genome sequencing. Additionally, we show that even at a reduced average coverage of 70× there is only minimal loss in sensitivity for SNV and CNV detection. Conclusion We conclude that exome sequencing with Twist represents a significant improvement and could be performed at lower sequence coverage compared to other exome capture techniques.

Published
2023

9. Twist exome capture allows for lower average sequence coverage in clinical exome sequencing

Author

Yaldiz, Burcu, Kucuk, Erdi, Hampstead, Juliet, Hofste, Tom, Pfundt, Rolph, Corominas Galbany, Jordi, Rinne, Tuula, Yntema, Helger G., Hoischen, Alexander, Nelen, Marcel, Gilissen, Christian, consortium, Solve-R. D., Riess, Olaf, Haack, Tobias B., Graessner, Holm, Zurek, Birte, Ellwanger, Kornelia, Ossowski, Stephan, Demidov, German, Sturm, Marc, Schulze-Hentrich, Julia M., Schüle, Rebecca, Xu, Jishu, Kessler, Christoph, Wayand, Melanie, Synofzik, Matthis, Wilke, Carlo, Traschütz, Andreas, Schöls, Ludger, Hengel, Holger, Lerche, Holger, Kegele, Josua, Heutink, Peter, Brunner, Han, Scheffer, Hans, Hoogerbrugge, Nicoline, Hoen, Peter A. C. T, Vissers, Lisenka E. L. M., Steyaert, Wouter, Sablauskas, Karolis, de Voer, Richarda M., Kamsteeg, Erik-Jan, van de Warrenburg, Bart, van Os, Nienke, te Paske, Iris, Janssen, Erik, de Boer, Elke, Steehouwer, Marloes, Kleefstra, Tjitske, Brookes, Anthony J., Veal, Colin, Gibson, Spencer, Maddi, Vatsalya, Mehtarizadeh, Mehdi, Riaz, Umar, Warren, Greg, Dizjikan, Farid Yavari, Shorter, Thomas, Töpf, Ana, Straub, Volker, Bettolo, Chiara Marini, Manera, Jordi Diaz, Hambleton, Sophie, Engelhardt, Karin, Clayton-Smith, Jill, Banka, Siddharth, Alexander, Elizabeth, Jackson, Adam, Faivre, Laurence, Thauvin, Christel, Vitobello, Antonio, Denommé-Pichon, Anne-Sophie, Duffourd, Yannis, Bruel, Ange-Line, Peyron, Christine, Pélissier, Aurore, Beltran, Sergi, Gut, Ivo Glynne, Laurie, Steven, Piscia, Davide, Matalonga, Leslie, Papakonstantinou, Anastasios, Bullich, Gemma, Corvo, Alberto, Fernandez-Callejo, Marcos, Hernández, Carles, Picó, Daniel, Paramonov, Ida, Lochmüller, Hanns, Gumus, Gulcin, Bros-Facer, Virginie, Rath, Ana, Hanauer, Marc, Lagorce, David, Hongnat, Oscar, Chahdil, Maroua, Lebreton, Emeline, Stevanin, Giovanni, Durr, Alexandra, Davoine, Claire-Sophie, Guillot-Noel, Léna, Heinzmann, Anna, Coarelli, Giulia, Bonne, Gisèle, Evangelista, Teresinha, Allamand, Valérie, Nelson, Isabelle, Yaou, Rabah Ben, Metay, Corinne, Eymard, Bruno, Cohen, Enzo, Atalaia, Antonio, Stojkovic, Tanya, Macek, Milan, Turnovec, Marek, Thomasová, Dana, Kremliková, Radka Pourová, Franková, Vera, Havlovicová, Markéta, Lišková, Petra, Doležalová, Pavla, Parkinson, Helen, Keane, Thomas, Freeberg, Mallory, Thomas, Coline, Spalding, Dylan, Robinson, Peter, Danis, Daniel, Robert, Glenn, Costa, Alessia, Patch, Christine, Hanna, Mike, Houlden, Henry, Reilly, Mary, Vandrovcova, Jana, Efthymiou, Stephanie, Morsy, Heba, Cali, Elisa, Magrinelli, Francesca, Sisodiya, Sanjay M., Rohrer, Jonathan, Muntoni, Francesco, Zaharieva, Irina, Sarkozy, Anna, Timmerman, Vincent, Baets, Jonathan, de Vries, Geert, De Winter, Jonathan, Beijer, Danique, de Jonghe, Peter, Van de Vondel, Liedewei, De Ridder, Willem, Weckhuysen, Sarah, Nigro, Vincenzo, Mutarelli, Margherita, Morleo, Manuela, Pinelli, Michele, Varavallo, Alessandra, Banfi, Sandro, Torella, Annalaura, Musacchia, Francesco, Piluso, Giulio, Ferlini, Alessandra, Selvatici, Rita, Gualandi, Francesca, Bigoni, Stefania, Rossi, Rachele, Neri, Marcella, Aretz, Stefan, Spier, Isabel, Sommer, Anna Katharina, Peters, Sophia, Oliveira, Carla, Pelaez, Jose Garcia, Matos, Ana Rita, José, Celina São, Ferreira, Marta, Gullo, Irene, Fernandes, Susana, Garrido, Luzia, Ferreira, Pedro, Carneiro, Fátima, Swertz, Morris A., Johansson, Lennart, van der Velde, Joeri K., van der Vries, Gerben, Neerincx, Pieter B., Ruvolo, David, Abbott, Kristin M., Frederikse, Wilhemina Skerstjens, Zonneveld-Huijssoon, Eveline, Roelofs-Prins, Dieuwke, van Gijn, Marielle, Köhler, Sebastian, Metcalfe, Alison, Verloes, Alain, Drunat, Séverine, Heron, Delphine, Mignot, Cyril, Keren, Boris, de Sainte Agathe, Jean-Madeleine, Rooryck, Caroline, Lacombe, Didier, Trimouille, Aurelien, De la Paz, Manuel Posada, Sánchez, Eva Bermejo, Martín, Estrella López, Delgado, Beatriz Martínez, de la Rosa, F. Javier Alonso García, Ciolfi, Andrea, Dallapiccola, Bruno, Pizzi, Simone, Radio, Francesca Clementina, Tartaglia, Marco, Renieri, Alessandra, Furini, Simone, Fallerini, Chiara, Benetti, Elisa, Balicza, Peter, Molnar, Maria Judit, Maver, Ales, Peterlin, Borut, Münchau, Alexander, Lohmann, Katja, Herzog, Rebecca, Pauly, Martje, Macaya, Alfons, Cazurro-Gutiérrez, Ana, Pérez-Dueñas, Belén, Munell, Francina, Jarava, Clara Franco, Masó, Laura Batlle, Marcé-Grau, Anna, Colobran, Roger, Osorio, Andrés Nascimento, de Benito, Daniel Natera, Thompson, Rachel, Polavarapu, Kiran, Grimbacher, Bodo, Beeson, David, Cossins, Judith, Hackman, Peter, Johari, Mridul, Savarese, Marco, Udd, Bjarne, Horvath, Rita, Chinnery, Patrick F., Ratnaike, Thiloka, Gao, Fei, Schon, Katherine, Capella, Gabriel, Valle, Laura, Holinski-Feder, Elke, Laner, Andreas, Steinke-Lange, Verena, Schröck, Evelin, Rump, Andreas, Başak, Ayşe Nazlı, Hemelsoet, Dimitri, Dermaut, Bart, Schuermans, Nika, Poppe, Bruce, Verdin, Hannah, Mei, Davide, Vetro, Annalisa, Balestrini, Simona, Guerrini, Renzo, Claeys, Kristl, Santen, Gijs W. E., Bijlsma, Emilia K., Hoffer, Mariette J. V., Ruivenkamp, Claudia A. L., Boztug, Kaan, Haimel, Matthias, Maystadt, Isabelle, Cordts, Isabelle, Deschauer, Marcus, Zaganas, Ioannis, Kokosali, Evgenia, Lambros, Mathioudakis, Evangeliou, Athanasios, Spilioti, Martha, Kapaki, Elisabeth, Bourbouli, Mara, Striano, Pasquale, Zara, Federico, Riva, Antonella, Iacomino, Michele, Uva, Paolo, Scala, Marcello, Scudieri, Paolo, Cilio, Maria-Roberta, Carpancea, Evelina, Depondt, Chantal, Lederer, Damien, Sznajer, Yves, Duerinckx, Sarah, Mary, Sandrine, Depienne, Christel, Roos, Andreas, May, Patrick, and Luxembourg Centre for Systems Biomedicine (LCSB): Bioinformatics Core (R. Schneider Group) [research center]

Subjects
Multidisciplinaire, généralités & autres [D99] [Sciences de la santé humaine], Genetics & genetic processes [F10] [Life sciences], Génétique & processus génétiques [F10] [Sciences du vivant], Multidisciplinary, general & others [D99] [Human health sciences]
Abstract

Background Exome and genome sequencing are the predominant techniques in the diagnosis and research of genetic disorders. Sufficient, uniform and reproducible/consistent sequence coverage is a main determinant for the sensitivity to detect single-nucleotide (SNVs) and copy number variants (CNVs). Here we compared the ability to obtain comprehensive exome coverage for recent exome capture kits and genome sequencing techniques. Results We compared three different widely used enrichment kits (Agilent SureSelect Human All Exon V5, Agilent SureSelect Human All Exon V7 and Twist Bioscience) as well as short-read and long-read WGS. We show that the Twist exome capture significantly improves complete coverage and coverage uniformity across coding regions compared to other exome capture kits. Twist performance is comparable to that of both short- and long-read whole genome sequencing. Additionally, we show that even at a reduced average coverage of 70× there is only minimal loss in sensitivity for SNV and CNV detection. Conclusion We conclude that exome sequencing with Twist represents a significant improvement and could be performed at lower sequence coverage compared to other exome capture techniques.

Published
2023

11. De Novo and Dominantly Inherited <scp> SPTAN1 </scp> Mutations Cause Spastic Paraplegia and Cerebellar Ataxia

Author

Van de Vondel, Liedewei, De Winter, Jonathan, Deconinck, Tine, Vural, Atay, Ertan, Sibel, Dogu, Okan, Uysal, Hilmi, Brankovic, Vesna, Herzog, Rebecca, Brice, Alexis, Dürr, Alexandra, Klebe, Stephan, Beijer, Danique, Stock, Friedrich, Bischoff, Almut Turid, Rattay, Tim W, Sobrido, María-Jesús, De Michele, Giovanna, De Jonghe, Peter, Klopstock, Thomas, Lohmann, Katja, Zanni, Ginevra, Santorelli, Filippo M, Coarelli, Giulia, Timmerman, Vincent, Haack, Tobias B, Züchner, Stephan, Consortium, PREPARE, Schüle, Rebecca, Stevanin, Giovanni, Synofzik, Matthis, Basak, A Nazli, Baets, Jonathan, Wayand, Melanie, Palvadeau, Robin, Pauly, Martje G, Klein, Katrin, Rautenberg, Maren, Guillot-Noël, Léna, and PREPARE Consortium

Subjects
spastic paraplegia, Cerebellar Ataxia, genetics [Spectrin], Medizin, genetics [Mutation], genetics [Carrier Proteins], Article, genetics [Paraplegia], genetics [Spastic Paraplegia, Hereditary], Intellectual Disability, Humans, ddc:610, Paraplegia, genetics [Cerebellar Ataxia], Spastic Paraplegia, Hereditary, ataxia, Microfilament Proteins, rare diseases, Spectrin, Pedigree, spectrin, Phenotype, Neurology, Mutation, next-generation sequencing, Human medicine, Neurology (clinical), genetics [Intellectual Disability], genetics [Microfilament Proteins], Carrier Proteins
Abstract

Background Pathogenic variants in SPTAN1 have been linked to a remarkably broad phenotypical spectrum. Clinical presentations include epileptic syndromes, intellectual disability, and hereditary motor neuropathy. Objectives We investigated the role of SPTAN1 variants in rare neurological disorders such as ataxia and spastic paraplegia. Methods We screened 10,000 NGS datasets across two international consortia and one local database, indicative of the level of international collaboration currently required to identify genes causative for rare disease. We performed in silico modeling of the identified SPTAN1 variants. Results We describe 22 patients from 14 families with five novel SPTAN1 variants. Of six patients with cerebellar ataxia, four carry a de novo SPTAN1 variant and two show a sporadic inheritance. In this group, one variant (p.Lys2083del) is recurrent in four patients. Two patients have novel de novo missense mutations (p.Arg1098Cys, p.Arg1624Cys) associated with cerebellar ataxia, in one patient accompanied by intellectual disability and epilepsy. We furthermore report a recurrent missense mutation (p.Arg19Trp) in 15 patients with spastic paraplegia from seven families with a dominant inheritance pattern in four and a de novo origin in one case. One further patient carrying a de novo missense mutation (p.Gln2205Pro) has a complex spastic ataxic phenotype. Through protein modeling we show that mutated amino acids are located at crucial interlinking positions, interconnecting the three-helix bundle of a spectrin repeat. Conclusions We show that SPTAN1 is a relevant candidate gene for ataxia and spastic paraplegia. We suggest that for the mutations identified in this study, disruption of the interlinking of spectrin helices could be a key feature of the pathomechanism. © 2022 International Parkinson and Movement Disorder Society

Published
2022
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13. RFC1 repeat expansions: A recurrent cause of sensory and autonomic neuropathy with cough and ataxia

Author

Beijer, Danique, Dohrn, Maike M.F., De Winter, Jonathan, Fazal, Sarah, Cortese, Andrea, Stojkovic, Tanya, Fernández-Eulate, Gorka, Remiche, Gauthier, Gentile, Mattia, Van Coster, Rudy, Dufke, Claudia, Synofzik, Matthis, De Jonghe, Peter, Züchner, Stephan, Baets, Jonathan, Beijer, Danique, Dohrn, Maike M.F., De Winter, Jonathan, Fazal, Sarah, Cortese, Andrea, Stojkovic, Tanya, Fernández-Eulate, Gorka, Remiche, Gauthier, Gentile, Mattia, Van Coster, Rudy, Dufke, Claudia, Synofzik, Matthis, De Jonghe, Peter, Züchner, Stephan, and Baets, Jonathan

Abstract

Background and purpose: Ataxia and cough are rare features in hereditary sensory and autonomic neuropathies (HSAN), a group of diseases of mostly unknown genetic cause. Biallelic repeat expansions in RFC1 are associated with cerebellar ataxia, neuropathy, and vestibular areflexia syndrome (CANVAS). This study aimed to investigate the prevalence of RFC1 repeat expansions in a cohort of HSAN patients. Methods: After unremarkable whole-exome sequencing (WES) analysis, we performed repeat-primed PCR to detect intronic RFC1 expansions in 12 HSAN families, who all presented with chronic cough. Results: In these patients, 75% carried biallelic expansions of the pathogenic AAGGG motif. Compared with RFC1−/− cases, RFC1+/+ cases presented more consistently with positive sensory and autonomic symptoms. Afferent ataxia was more severe in the RFC1+/+ cohort and cerebellar ataxia was a common feature (21%). Conclusions: We demonstrate that RFC1 is a frequent cause of (WES-negative) HSAN with chronic cough and ataxia. The diagnostic yield of RFC1 repeat-primed PCR was surprisingly high, given that HSAN is genetically poorly understood. This combination of HSAN, ataxia, and chronic cough symptoms represents a new nosological entity within the neuropathy-ataxia spectrum., SCOPUS: ar.j, info:eu-repo/semantics/published

Published
2022

14. Ataxia And Cough Are Indicative For Biallelic RFC1 Repeat Expansions In Hereditary Sensory And Autonomic Neuropathy (S29.010)

Author

Beijer, Danique, primary, Dohrn, Maike, additional, De Winter, Jonathan, additional, Fazal, Sarah, additional, Cortese, Andrea, additional, Stojkovic, Tanya, additional, Fernandez-Eulate, Gorka, additional, Gentile, Mattia, additional, Remiche, Gauthier, additional, Synofzik, Matthis, additional, De Jonghe, Peter, additional, Züchner, Stephan, additional, and Baets, Jonathan, additional

Published
2022
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15. RFC1 repeat expansions: A recurrent cause of sensory and autonomic neuropathy with cough and ataxia

Author

Beijer, Danique, primary, Dohrn, Maike F., additional, De Winter, Jonathan, additional, Fazal, Sarah, additional, Cortese, Andrea, additional, Stojkovic, Tanya, additional, Fernández‐Eulate, Gorka, additional, Remiche, Gauthier, additional, Gentile, Mattia, additional, Van Coster, Rudy, additional, Dufke, Claudia, additional, Synofzik, Matthis, additional, De Jonghe, Peter, additional, Züchner, Stephan, additional, and Baets, Jonathan, additional

Published
2022
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18. De Novo and Dominantly Inherited SPTAN1 Mutations Cause Spastic Paraplegia and Cerebellar Ataxia.

Author

Van de Vondel, Liedewei, De Winter, Jonathan, Beijer, Danique, Coarelli, Giulia, Wayand, Melanie, Palvadeau, Robin, Pauly, Martje G., Klein, Katrin, Rautenberg, Maren, Guillot‐Noël, Léna, Deconinck, Tine, Vural, Atay, Ertan, Sibel, Dogu, Okan, Uysal, Hilmi, Brankovic, Vesna, Herzog, Rebecca, Brice, Alexis, Durr, Alexandra, and Klebe, Stephan

Abstract

Background: Pathogenic variants in SPTAN1 have been linked to a remarkably broad phenotypical spectrum. Clinical presentations include epileptic syndromes, intellectual disability, and hereditary motor neuropathy. Objectives: We investigated the role of SPTAN1 variants in rare neurological disorders such as ataxia and spastic paraplegia. Methods: We screened 10,000 NGS datasets across two international consortia and one local database, indicative of the level of international collaboration currently required to identify genes causative for rare disease. We performed in silico modeling of the identified SPTAN1 variants. Results: We describe 22 patients from 14 families with five novel SPTAN1 variants. Of six patients with cerebellar ataxia, four carry a de novo SPTAN1 variant and two show a sporadic inheritance. In this group, one variant (p.Lys2083del) is recurrent in four patients. Two patients have novel de novo missense mutations (p.Arg1098Cys, p.Arg1624Cys) associated with cerebellar ataxia, in one patient accompanied by intellectual disability and epilepsy. We furthermore report a recurrent missense mutation (p.Arg19Trp) in 15 patients with spastic paraplegia from seven families with a dominant inheritance pattern in four and a de novo origin in one case. One further patient carrying a de novo missense mutation (p.Gln2205Pro) has a complex spastic ataxic phenotype. Through protein modeling we show that mutated amino acids are located at crucial interlinking positions, interconnecting the three‐helix bundle of a spectrin repeat. Conclusions: We show that SPTAN1 is a relevant candidate gene for ataxia and spastic paraplegia. We suggest that for the mutations identified in this study, disruption of the interlinking of spectrin helices could be a key feature of the pathomechanism. © 2022 International Parkinson and Movement Disorder Society [ABSTRACT FROM AUTHOR]

Published
2022
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21. A Recurrent KPNA3 Missense Variant Causing Infantile Pure Spastic Paraplegia.

Author

De Winter, Jonathan, Van de Vondel, Liedewei, Züchner, Stephan, Ortibus, Els, and Baets, Jonathan

Subjects
MISSENSE mutation, PARAPLEGIA, FAMILIAL spastic paraplegia, AMYOTROPHIC lateral sclerosis, PERIPHERAL nervous system, NUCLEOCYTOPLASMIC interactions
Abstract

Brain magnetic resonance imaging (MRI) showed no callosal or cerebellar structural abnormalities in both patients. With great interest we read the study of Schob et al in I Annals of Neurology i 1 identifying 6 dominantly inherited or de novo I KPNA3 i mutations, in 8 patients from 5 families. [Extracted from the article]

Published
2022
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22. A Solve-RD ClinVar-based reanalysis of 1522 index cases from ERN-ITHACA reveals common pitfalls and misinterpretations in exome sequencing

Author

Denommé-Pichon, Anne-Sophie, Matalonga, Leslie, de Boer, Elke, Jackson, Adam, Benetti, Elisa, Banka, Siddharth, Bruel, Ange-Line, Ciolfi, Andrea, Clayton-Smith, Jill, Dallapiccola, Bruno, Duffourd, Yannis, Ellwanger, Kornelia, Fallerini, Chiara, Gilissen, Christian, Graessner, Holm, Haack, Tobias B., Havlovicova, Marketa, Hoischen, Alexander, Jean-Marçais, Nolwenn, Kleefstra, Tjitske, López-Martín, Estrella, Macek, Milan, Mencarelli, Maria Antonietta, Moutton, Sébastien, Pfundt, Rolph, Pizzi, Simone, Posada, Manuel, Radio, Francesca Clementina, Renieri, Alessandra, Rooryck, Caroline, Ryba, Lukas, Safraou, Hana, Schwarz, Martin, Tartaglia, Marco, Thauvin-Robinet, Christel, Thevenon, Julien, Mau-Them, Frédéric Tran, Trimouille, Aurélien, Votypka, Pavel, de Vries, Bert B.A., Willemsen, Marjolein H., Zurek, Birte, Verloes, Alain, Philippe, Christophe, Abbott, Kristin M., Banka, Siddharth, de Boer, Elke, Ciolfi, Andrea, Clayton-Smith, Jill, Dallapiccola, Bruno, Denommé-Pichon, Anne-Sophie, Faivre, Laurence, Gilissen, Christian, Haack, Tobias B., Havlovicova, Marketa, Hoischen, Alexander, Jackson, Adam, Kerstjens, Mieke, Kleefstra, Tjitske, Martín, Estrella López, Macek, Milan, Matalonga, Leslie, Maystadt, Isabelle, Morleo, Manuela, Nigro, Vicenzo, Pinelli, Michele, Pizzi, Simone, Posada, Manuel, Radio, Francesca C., Renieri, Alessandra, Riess, Olaf, Rooryck, Caroline, Ryba, Lukas, Agathe, Jean-Madeleine de Sainte, Santen, Gijs W.E., Schwarz, Martin, Tartaglia, Marco, Thauvin, Christel, Torella, Annalaura, Trimouille, Aurélien, Verloes, Alain, Vissers, Lisenka, Vitobello, Antonio, Votypka, Pavel, Zguro, Kristina, Boer, Elke de, Cohen, Enzo, Danis, Daniel, Denommé-Pichon, Anne-Sophie, Gao, Fei, Gilissen, Christian, Horvath, Rita, Johari, Mridul, Johanson, Lennart, Li, Shuang, Matalonga, Leslie, Morsy, Heba, Nelson, Isabelle, Paramonov, Ida, te Paske, Iris B.A.W., Robinson, Peter, Savarese, Marco, Steyaert, Wouter, Töpf, Ana, Trimouille, Aurélien, van der Velde, Joeri K., Vandrovcova, Jana, Vitobello, Antonio, Riess, Olaf, Haack, Tobias B., Graessner, Holm, Zurek, Birte, Ellwanger, Kornelia, Ossowski, Stephan, Demidov, German, Sturm, Marc, Schulze-Hentrich, Julia M., Schüle, Rebecca, Xu, Jishu, Kessler, Christoph, Wayand, Melanie, Synofzik, Matthis, Wilke, Carlo, Traschütz, Andreas, Schöls, Ludger, Hengel, Holger, Lerche, Holger, Kegele, Josua, Heutink, Peter, Brunner, Han, Scheffer, Hans, Hoogerbrugge, Nicoline, Hoischen, Alexander, ‘t Hoen, Peter A.C., Vissers, Lisenka E.L.M., Gilissen, Christian, Steyaert, Wouter, Sablauskas, Karolis, de Voer, Richarda M., Kamsteeg, Erik-Jan, van de Warrenburg, Bart, van Os, Nienke, Paske, Iris te, Janssen, Erik, de Boer, Elke, Steehouwer, Marloes, Yaldiz, Burcu, Kleefstra, Tjitske, Brookes, Anthony J., Veal, Colin, Gibson, Spencer, Maddi, Vatsalya, Mehtarizadeh, Mehdi, Riaz, Umar, Warren, Greg, Dizjikan, Farid Yavari, Shorter, Thomas, Töpf, Ana, Straub, Volker, Bettolo, Chiara Marini, Manera, Jordi Diaz, Hambleton, Sophie, Engelhardt, Karin, Clayton-Smith, Jill, Banka, Siddharth, Alexander, Elizabeth, Jackson, Adam, Faivre, Laurence, Thauvin, Christel, Vitobello, Antonio, Denommé-Pichon, Anne-Sophie, Duffourd, Yannis, Bruel, Ange-Line, Peyron, Christine, Pélissier, Aurore, Beltran, Sergi, Gut, Ivo Glynne, Laurie, Steven, Piscia, Davide, Matalonga, Leslie, Papakonstantinou, Anastasios, Bullich, Gemma, Corvo, Alberto, Fernandez-Callejo, Marcos, Hernández, Carles, Picó, Daniel, Paramonov, Ida, Lochmüller, Hanns, Gumus, Gulcin, Bros-Facer, Virginie, Rath, Ana, Hanauer, Marc, Lagorce, David, Hongnat, Oscar, Chahdil, Maroua, Lebreton, Emeline, Stevanin, Giovanni, Durr, Alexandra, Davoine, Claire-Sophie, Guillot-Noel, Léna, Heinzmann, Anna, Coarelli, Giulia, Bonne, Gisèle, Evangelista, Teresinha, Allamand, Valérie, Nelson, Isabelle, Ben Yaou, Rabah, Metay, Corinne, Eymard, Bruno, Cohen, Enzo, Atalaia, Antonio, Stojkovic, Tanya, Macek, Milan, Turnovec, Marek, Thomasová, Dana, Kremliková, Radka Pourová, Franková, Vera, Havlovicová, Markéta, Lišková, Petra, Doležalová, Pavla, Parkinson, Helen, Keane, Thomas, Freeberg, Mallory, Thomas, Coline, Spalding, Dylan, Robinson, Peter, Danis, Daniel, Robert, Glenn, Costa, Alessia, Patch, Christine, Hanna, Mike, Houlden, Henry, Reilly, Mary, Vandrovcova, Jana, Efthymiou, Stephanie, Morsy, Heba, Cali, Elisa, Magrinelli, Francesca, Sisodiya, Sanjay M., Rohrer, Jonathan, Muntoni, Francesco, Zaharieva, Irina, Sarkozy, Anna, Timmerman, Vincent, Baets, Jonathan, de Vries, Geert, De Winter, Jonathan, Beijer, Danique, de Jonghe, Peter, Van de Vondel, Liedewei, De Ridder, Willem, Weckhuysen, Sarah, Nigro, Vincenzo, Mutarelli, Margherita, Morleo, Manuela, Pinelli, Michele, Varavallo, Alessandra, Banfi, Sandro, Torella, Annalaura, Musacchia, Francesco, Piluso, Giulio, Ferlini, Alessandra, Selvatici, Rita, Gualandi, Francesca, Bigoni, Stefania, Rossi, Rachele, Neri, Marcella, Aretz, Stefan, Spier, Isabel, Sommer, Anna Katharina, Peters, Sophia, Oliveira, Carla, Pelaez, Jose Garcia, Matos, Ana Rita, José, Celina São, Ferreira, Marta, Gullo, Irene, Fernandes, Susana, Garrido, Luzia, Ferreira, Pedro, Carneiro, Fátima, Swertz, Morris A., Johansson, Lennart, van der Velde, Joeri K., van der Vries, Gerben, Neerincx, Pieter B., Ruvolo, David, Abbott, Kristin M., Kerstjens Frederikse, Wilhemina S., Zonneveld-Huijssoon, Eveline, Roelofs-Prins, Dieuwke, van Gijn, Marielle, Köhler, Sebastian, Metcalfe, Alison, Verloes, Alain, Drunat, Séverine, Heron, Delphine, Mignot, Cyril, Keren, Boris, Agathe, Jean-Madeleine de Sainte, Rooryck, Caroline, Lacombe, Didier, Trimouille, Aurelien, Capella, Gabriel, Valle, Laura, Holinski-Feder, Elke, Laner, Andreas, Steinke-Lange, Verena, Cilio, Maria-Roberta, Carpancea, Evelina, Depondt, Chantal, Lederer, Damien, Sznajer, Yves, Duerinckx, Sarah, Mary, Sandrine, Macaya, Alfons, Cazurro-Gutiérrez, Ana, Pérez-Dueñas, Belén, Munell, Francina, Jarava, Clara Franco, Masó, Laura Batlle, Marcé-Grau, Anna, Colobran, Roger, Hackman, Peter, Johari, Mridul, Savarese, Marco, Udd, Bjarne, Hemelsoet, Dimitri, Dermaut, Bart, Schuermans, Nika, Poppe, Bruce, Verdin, Hannah, Osorio, Andrés Nascimento, Depienne, Christel, Roos, Andreas, Maystadt, Isabelle, Cordts, Isabell, Deschauer, Marcus, Striano, Pasquale, Zara, Federico, Riva, Antonella, Iacomino, Michele, Uva, Paolo, Scala, Marcello, Scudieri, Paolo, Başak, Ayşe Nazlı, Claeys, Kristl, Boztug, Kaan, Haimel, Matthias, W.E, Gijs, Ruivenkamp, Claudia A.L., Natera de Benito, Daniel, Lochmüller, Hanns, Thompson, Rachel, Polavarapu, Kiran, Grimbacher, Bodo, Zaganas, Ioannis, Kokosali, Evgenia, Lambros, Mathioudakis, Evangeliou, Athanasios, Spilioti, Martha, Kapaki, Elisabeth, Bourbouli, Mara, Ciolfi, Andrea, Dallapiccola, Bruno, Pizzi, Simone, Radio, Francesca Clementina, Tartaglia, Marco, Balicza, Peter, Molnar, Maria Judit, De la Paz, Manuel Posada, Sánchez, Eva Bermejo, Martín, Estrella López, Delgado, Beatriz Martínez, Alonso García de la Rosa, F. Javier, Schröck, Evelin, Rump, Andreas, Mei, Davide, Vetro, Annalisa, Balestrini, Simona, Guerrini, Renzo, Horvath, Rita, Chinnery, Patrick F., Ratnaike, Thiloka, Gao, Fei, Schon, Katherine, Maver, Ales, Peterlin, Borut, Münchau, Alexander, Lohmann, Katja, Herzog, Rebecca, Pauly, Martje, May, Patrick, Beeson, David, Cossins, Judith, Renieri, Alessandra, Furini, Simone, Fallerini, Chiara, Benetti, Elisa, Afenjar, Alexandra, Goldenberg, Alice, Masurel, Alice, Phan, Alice, Dieux-Coeslier, Anne, Fargeot, Anne, Guerrot, Anne-Marie, Toutain, Annick, Molin, Arnaud, Sorlin, Arthur, Putoux, Audrey, Jouret, Béatrice, Laudier, Béatrice, Demeer, Bénédicte, Doray, Bérénice, Bonniaud, Bertille, Isidor, Bertrand, Gilbert-Dussardier, Brigitte, Leheup, Bruno, Reversade, Bruno, Paul, Carle, Vincent-Delorme, Catherine, Neiva, Cecilia, Poirsier, Céline, Quélin, Chloé, Chiaverini, Christine, Coubes, Christine, Francannet, Christine, Colson, Cindy, Desplantes, Claire, Wells, Constance, Goizet, Cyril, Lederer, Damien, Sanlaville, Damien, Amram, Daniel, Lehalle, Daphné, Geneviève, David, Heron, Delphine, Lacombe, Didier, Gaillard, Dominique, Zivi, Einat, Sarrazin, Elisabeth, Steichen, Elisabeth, Schaefer, Élise, Lacaze, Elodie, Jacquemin, Emmanuel, Bongers, Ernie, Kilic, Esra, Colin, Estelle, Giuliano, Fabienne, Prieur, Fabienne, Laffargue, Fanny, Morice-Picard, Fanny, Petit, Florence, Cartault, François, Feillet, François, Baujat, Geneviève, Morin, Gilles, Diene, Gwenaëlle, Journel, Hubert, Maystadt, Isabelle, Perthus, Isabelle, Lespinasse, James, Alessandri, Jean-Luc, Amiel, Jeanne, Martinovic, Jelena, Delanne, Julian, Albuisson, Juliette, Lambert, Laëtitia, Perrin, Laurence, Ousager, Lilian Bomme, Van Maldergem, Lionel, Pinson, Lucile, Ruaud, Lyse, Samimi, Mahtab, Bournez, Marie, Bonnet-Dupeyron, Marie Noëlle, Vincent, Marie, Jacquemont, Marie-Line, Cordier-Alex, Marie-Pierre, Gérard-Blanluet, Marion, Willems, Marjolaine, Spodenkiewicz, Marta, Doco-Fenzy, Martine, Rossi, Massimiliano, Renaud, Mathilde, Fradin, Mélanie, Mathieu, Michèle, Holder-Espinasse, Muriel H., Houcinat, Nada, Hanna, Nadine, Leperrier, Nathalie, Chassaing, Nicolas, Philip, Nicole, Boute, Odile, Van Kien, Philippe Khau, Parent, Philippe, Bitoun, Pierre, Sarda, Pierre, Vabres, Pierre, Jouk, Pierre-Simon, Touraine, Renaud, El Chehadeh, Salima, Whalen, Sandra, Marlin, Sandrine, Passemard, Sandrine, Grotto, Sarah, Bellanger, Séverine Audebert, Blesson, Sophie, Nambot, Sophie, Naudion, Sophie, Lyonnet, Stanislas, Odent, Sylvie, Attie-Bitach, Tania, Busa, Tiffany, Drouin-Garraud, Valérie, Layet, Valérie, Bizaoui, Varoona, Cusin, Véronica, Capri, Yline, Alembik, Yves, Vitobello, Antonio, Vissers, Lisenka E.L.M., and Faivre, Laurence

Abstract

Within the Solve-RD project (https://solve-rd.eu/), the European Reference Network for Intellectual disability, TeleHealth, Autism, and Congenital Anomalies aimed to investigate whether a reanalysis of exomes from unsolved cases based on ClinVar annotations could establish additional diagnoses. We present the results of the “ClinVar low-hanging fruit” reanalysis, reasons for the failure of previous analyses, and lessons learned.

Published
2023
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23. Long‐Term Follow Up in Anti‐Contactin‐1 Autoimmune Nodopathy.

Author

Caballero‐Ávila, Marta, Martín‐Aguilar, Lorena, Pascual‐Goñi, Elba, Michael, Milou R., Koel‐Simmelink, Marleen J.A., Höftberger, Romana, Wanschitz, Julia, Alonso‐Jiménez, Alicia, Armangué, Thais, Baars, Adája Elisabeth, Carbayo, Álvaro, Castek, Barbara, Collet‐Vidiella, Roger, De Winter, Jonathan, Real, Maria Ángeles, Delmont, Emilien, Diamanti, Luca, Doneddu, Pietro Emiliano, Hiew, Fu Liong, and Gallardo, Eduard

Abstract

Objective Methods Results Interpretation To analyze long‐term clinical and biomarker features of anti‐contactin‐1 (CNTN1) autoimmune nodopathy (AN).Patients with anti‐CNTN1+ autoimmune nodopathy detected in our laboratory from which clinical information was available were included. Clinical features and treatment response were retrospectively collected. Autoantibody, serum neurofilament light chain (sNfL), and serum CNTN1 levels (sCNTN1) were analyzed at baseline and follow up.A total of 31 patients were included. Patients presented with progressive sensory motor neuropathy (76.7%) with proximal (74.2%) and distal involvement (87.1%), ataxia (71.4%), and severe disability (median INCAT at nadir of 8). A total of 11 patients (35%) showed kidney involvement. Most patients (97%) received intravenous immunoglobulin, but only 1 achieved remission with intravenous immunoglobulin. A total of 22 patients (71%) received corticosteroids, and 3 of them (14%) did not need further treatments. Rituximab was effective in 21 of 22 patients (95.5%), with most of them (72%) receiving a single course. Four patients (12.9%) relapsed after a median follow up of 25 months after effective treatment (12–48 months). Anti‐CNTN1 titers correlated with clinical scales at sampling and were negative after treatment in all patients, but 1 (20/21). sNfL levels were significantly higher and sCNTN1 significantly lower in anti‐CNTN1+ patients than in healthy controls (sNfL: 135.9 pg/ml vs 7.48 pg/ml, sCNTN1: 25.03 pg/ml vs 22,186 pg/ml, p < 0.0001). Both sNfL and sCNTN1 returned to normal levels after successful treatment.Patients with anti‐CNTN1+ autoimmune nodopathy have a characteristic clinical profile. Clinical and immunological relapses are infrequent after successful treatment, suggesting that continuous treatment is unnecessary. Anti‐CNTN1 antibodies, sNfL, and sCNTN1 levels are useful to monitor disease status in these patients. ANN NEUROL 2024 [ABSTRACT FROM AUTHOR]

Published
2024
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24. PCYT2 mutations disrupting etherlipid biosynthesis: phenotypes converging on the CDP-ethanolamine pathway.

Author

Winter, Jonathan De, Beijer, Danique, Ridder, Willem De, Synofzik, Matthis, Zuchner, Stephan L, consortium, PREPARE, Damme, Philip Van, Spileers, Werner, Baets, Jonathan, De Winter, Jonathan, De Ridder, Willem, PREPARE consortium, and Van Damme, Philip

Subjects
FAMILIAL spastic paraplegia, BIOSYNTHESIS, MOTOR neuron diseases, PHENOTYPES, GENETIC mutation, NUCLEOTIDES, ETHANOLAMINES, BARTHEL Index
Abstract

No additional bi-allelic PCYT2 variants were identified in 1700 HSP/ataxia samples of the PREPARE consortium, which likely makes PCYT2-related HSP/spastic ataxia a rare entity. Moreover, while our patient is the only PCYT2 patient with scoliosis, it has been reported for several PCYT1A patients (Yamamoto et al.,2014). LETTER TOTHE EDITOR PCYT2 mutations disrupting etherlipid biosynthesis: phenotypes converging on the CDP-ethanolamine pathway JonathanDeWinter, 1,† DaniqueBeijer, 2,3,† WillemDeRidder, 1,2,3 MatthisSynofzik, 4,5 StephanL. [Extracted from the article]

Published
2021
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25. Heterozygous loss-of-function variants in SPTAN1 cause a novel early childhood onset distal myopathy with chronic neurogenic features.

Author

De Winter J, Van de Vondel L, Ermanoska B, Monticelli A, Isapof A, Cohen E, Stojkovic T, Hackman P, Johari M, Palmio J, Waldrop MA, Meyer AP, Nicolau S, Flanigan KM, Töpf A, Diaz-Manera J, Straub V, Longman C, McWilliam CA, Orbach R, Verma S, Laine R, Donkervoort S, Bonnemann CG, Rebelo A, Züchner S, Grider T, Shy ME, Maystadt I, Demurger F, Cairns A, Beecroft S, Folland C, De Ridder W, Ravenscroft G, Bonne G, Udd B, and Baets J

Abstract

Background: Neurogenetic disorders caused by pathogenic variants in four genes encoding non-erythrocytic spectrins ( SPTAN1, SPTBN1, SPTBN2, SPTBN4) range from peripheral and central nervous system involvement to complex syndromic presentations. Heterozygous pathogenic variants in SPTAN1 are exemplary for this diversity with phenotypes spanning almost the entire spectrum., Methods: Through international collaboration we identified 14 families with genetically unsolved distal weakness and unreported heterozygous SPTAN1 loss-of-function variants including frameshift, nonsense and splice-acceptor variants. Clinical data, electrophysiology, muscle CT or MRI and muscle biopsy findings were collected and standardized. SPTAN1 protein, mRNA expression analysis and cDNA sequencing was performed on muscle tissue from two patients., Results: All 20 patients presented with early childhood onset distal weakness. The severity varied both within families and between different families. Foot abnormalities ranged from hammer toes and pes cavus to distal arthrogryposis. Electrophysiology showed mixed myogenic and neurogenic features. Muscle MRI or CT in 10 patients showed fatty infiltration of the distal lower limb anterior compartment and/or selective involvement of the extensor hallucis longus muscle. Muscle biopsy revealed myopathic changes with mild dystrophic and chronic neurogenic changes in 7 patients. Finally, we provide proof for nonsense mediated decay in tissues derived from two patients., Conclusions: We provide evidence for the association of SPTAN1 loss-of-function variants with childhood onset distal myopathy in 14 families. This finding extends the phenotypic spectrum of SPTAN1 loss-of-function variants ranging from intellectual disability to distal weakness with a predominant myogenic cause., Key Messages: SPTAN1 loss-of-function variants, including frameshift, nonsense and splice site variants cause a novel childhood onset distal weakness syndrome with primarily skeletal muscle involvement. Hereditary motor neuropathies and distal myopathic disorders present a well-known diagnostic challenge as they demonstrate substantial clinical and genetic overlap. The emergence of SPTAN1 loss-of-function variants serves as a noteworthy example, highlighting a growing convergence in the spectrum of genotypes linked to both hereditary motor neuropathies and distal myopathies.

Published
2024
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26. Reduction of sacsin levels in peripheral blood mononuclear cells as a diagnostic tool for spastic ataxia of Charlevoix-Saguenay.

Author

De Ritis D, Ferrè L, De Winter J, Tremblay-Desbiens C, Blais M, Bassi MT, Dupré N, Baets J, Filippi M, and Maltecca F

Abstract

Autosomal recessive spastic ataxia of Charlevoix-Saguenay is a rare neurodegenerative disease caused by biallelic variants in the SACS gene encoding for sacsin. More than 200 pathogenic variants have been identified to date, most of which are missense. It is likely that the prevalence of autosomal recessive spastic ataxia of Charlevoix-Saguenay is underestimated due to the lack of an efficient diagnostic tool able to validate variants of uncertain significance. We have previously shown that sacsin is almost absent in fibroblasts of patients with autosomal recessive spastic ataxia of Charlevoix-Saguenay regardless of the type of SACS variant, because sacsin carrying missense variants is cotranslationally degraded. In this work, we aimed to establish the pathogenicity of SACS variants by quantifying sacsin protein in blood samples, with relevant implications for autosomal recessive spastic ataxia of Charlevoix-Saguenay diagnosis. We developed a protocol to assess sacsin protein levels by western blot using small amounts of peripheral blood mononuclear cells, which can be propagated in culture and cryopreserved. The study involves eight patients with autosomal recessive spastic ataxia of Charlevoix-Saguenay (including a novel case) carrying variants of different types and positions along the SACS gene and two parents who are carriers of heterozygous missense variants. We show that patients with autosomal recessive spastic ataxia of Charlevoix-Saguenay (carrying either missense or truncating variants) almost completely lacked sacsin in peripheral blood mononuclear cells. Moreover, both carriers of a SACS missense variant showed 50% reduction in sacsin protein levels compared to controls. We also describe a patient with uniparental isodisomy carrying a homozygous nonsense variant near the 3' end of the SACS gene. This resulted in a stable sacsin protein lacking the last 202 amino acids, probably due to escape of nonsense-mediated decay of mRNA. In conclusion, we have optimized a minimally invasive diagnostic tool for autosomal recessive spastic ataxia of Charlevoix-Saguenay in blood samples based on sacsin protein level assessment. Indeed, our results provide definite evidence that sacsin carrying missense pathogenic variants undergoes cotranslational degradation. The quantitative reduction in sacsin levels in the case of missense variants of uncertain significance allows defining them as pathogenic variants, something which cannot be predicted bioinformatically with high certainty., Competing Interests: The authors report no competing interests., (© The Author(s) 2024. Published by Oxford University Press on behalf of the Guarantors of Brain.)

Published
2024
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27. Erratum to: Biallelic variants in HPDL cause pure and complicated hereditary spastic paraplegia.

Author

Wiessner M, Maroofian R, Ni MY, Pedroni A, Müller JS, Stucka R, Beetz C, Efthymiou S, Santorelli FM, Alfares AA, Zhu C, Uhrova Meszarosova A, Alehabib E, Bakhtiari S, Janecke AR, Otero MG, Chen JYH, Peterson JT, Strom TM, De Jonghe P, Deconinck T, De Ridder W, De Winter J, Pasquariello R, Ricca I, Alfadhel M, van de Warrenburg BP, Portier R, Bergmann C, Ghasemi Firouzabadi S, Jin SC, Bilguvar K, Hamed S, Abdelhameed M, Haridy NA, Maqbool S, Rahman F, Anwar N, Carmichael J, Pagnamenta AT, Wood NW, Tran Mau-Them F, Haack T, Di Rocco M, Ceccherini I, Iacomino M, Zara F, Salpietro V, Scala M, Rusmini M, Xu Y, Wang Y, Suzuki Y, Koh K, Nan H, Ishiura H, Tsuji S, Lambert L, Schmitt E, Lacaze E, Küpper H, Dredge D, Skraban C, Goldstein A, Willis MJH, Grand K, Graham JM, Lewis RA, Millan F, Duman Ö, Olgac Dundar N, Uyanik G, Schöls L, Nürnberg P, Nürnberg G, Català-Bordes A, Seeman P, Kuchar M, Darvish H, Rebelo A, Bouçanova F, Medard JJ, Chrast R, Auer-Grumbach M, Alkuraya FS, Shamseldin H, Al Tala S, Rezazadeh Varaghchi J, Najafi M, Deschner S, Gläser D, Hüttel W, Kruer MC, Kamsteeg EJ, Takiyama Y, Züchner S, Baets J, Synofzik M, Schüle R, Horvath R, Houlden H, Bartesaghi L, Lee HJ, Ampatzis K, Pierson TM, and Senderek J

Published
2021
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