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1. Copy-number analysis from genome sequencing data of 11,754 rare-disease parent-child trios: A model for identifying autosomal recessive human gene knockouts including a novel gene for autosomal recessive retinopathy

Author

Eric Olinger, Ian J. Wilson, Sarah Orr, Miguel Barroso-Gil, Ruxandra Neatu, Denize Atan, John A. Sayer, John C. Ambrose, Prabhu Arumugam, Roel Bevers, Marta Bleda, Freya Boardman-Pretty, Christopher R. Boustred, Helen Brittain, Mark J. Caulfield, Georgia C. Chan, Greg Elgar, Tom Fowler, Adam Giess, Angela Hamblin, Shirley Henderson, Tim J.P. Hubbard, Rob Jackson, Louise J. Jones, Dalia Kasperaviciute, Melis Kayikci, Athanasios Kousathanas, Lea Lahnstein, Sarah E.A. Leigh, Ivonne U.S. Leong, Javier F. Lopez, Fiona Maleady-Crowe, Meriel McEntagart, Federico Minneci, Loukas Moutsianas, Michael Mueller, Nirupa Murugaesu, Anna C. Need, Peter O’Donovan, Chris A. Odhams, Christine Patch, Mariana Buongermino Pereira, Daniel Perez-Gil, John Pullinger, Tahrima Rahim, Augusto Rendon, Tim Rogers, Kevin Savage, Kushmita Sawant, Richard H. Scott, Afshan Siddiq, Alexander Sieghart, Samuel C. Smith, Alona Sosinsky, Alexander Stuckey, Mélanie Tanguy, Ana Lisa Taylor Tavares, Ellen R.A. Thomas, Simon R. Thompson, Arianna Tucci, Matthew J. Welland, Eleanor Williams, Katarzyna Witkowska, and Suzanne M. Wood

Subjects
CNV analysis, Genome sequencing, NPHP1, Retinopathy, SLC66A1, Genetics, QH426-470, Medicine
Abstract

Purpose: In parent-child trios with genome sequencing data, we investigated inherited biallelic deletions to identify known and novel genetic disorders. Methods: We developed a copy-number variations analysis pipeline based on autosomal genome sequencing read depth of Genomics England 100,000 Genomes Project data from 11,754 parent-child trios and additional 18,875 non-trios. A control cohort of 15,440 cancer patients provided independent deletion frequencies. Results: Autosomal recessive (AR) modeling detected 34 distinct rare deletions that were homozygous in the proband and heterozygous in both parents. These inherited biallelic deletions were only detected in 52 trios. These “knockout” regions included 37 genes, having among them 8 with an Online Mendelian Inheritance in Man AR annotation. Deletions of NPHP1, followed by OTOA, both within segmental duplications, were the only recurrent findings explaining phenotypes in a total of 10 and 3 patients, respectively. Recurrent heterozygous NPHP1 deletions were detected in 0.3%-0.5% of controls. We reviewed “knockout” patients for the remaining 29 genes without disease associations and identified SLC66A1 as a likely novel cause for AR rod-cone dystrophy in 4 families. Conclusion: A tailored copy-number variations analysis of genome sequencing trio data shows that biallelic inherited gene deletions are rare, with NPHP1 biallelic deletions causing nephronophthisis the leading finding. We propose SLC66A1 as a novel cause for AR retinopathy.

Published
2024
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2. Late-Onset Autosomal Dominant Macular Degeneration Caused by Deletion of the CRX Gene

Author

Samar Yahya, Claire E.L. Smith, James A. Poulter, Martin McKibbin, Gavin Arno, Jamie Ellingford, Kati Kämpjärvi, Muhammad I. Khan, Frans P.M. Cremers, Alison J. Hardcastle, Bruce Castle, David H.W. Steel, Andrew R. Webster, Graeme C. Black, Mohammed E. El-Asrag, Manir Ali, Carmel Toomes, Chris F. Inglehearn, Stuart Ingram, Rachel Taylor, Forbes Manson, Panagiotis Sergouniotis, Nikolas Pontikos, Michael Cheetham, Alessia Fiorentino, Susan Downes, Jing Yu, Stephanie Halford, Suzanne Broadgate, Veronica van Heyningen, John C. Ambrose, Prabhu Arumugam, Roel Bevers, Marta Bleda, Freya Boardman-Pretty, Christopher R. Boustred, Helen Brittain, Mark J. Caulfield, Georgia C. Chan, Greg Elgar, Tom Fowler, Adam Giess, Angela Hamblin, Shirley Henderson, Tim J.P. Hubbard, Rob Jackson, Louise J. Jones, Dalia Kasperaviciute, Melis Kayikci, Athanasios Kousathanas, Lea Lahnstein, Sarah E.A. Leigh, Ivonne U.S. Leong, Javier F. Lopez, Fiona Maleady-Crowe, Meriel McEntagart, Federico Minneci, Loukas Moutsianas, Michael Mueller, Nirupa Murugaesu, Anna C. Need, Peter O’Donovan, Chris A. Odhams, Christine Patch, Mariana Buongermino Pereira, Daniel Perez-Gil, John Pullinger, Tahrima Rahim, Augusto Rendon, Tim Rogers, Kevin Savage, Kushmita Sawant, Richard H. Scott, Afshan Siddiq, Alexander Sieghart, Samuel C. Smith, Alona Sosinsky, Alexander Stuckey, Mélanie Tanguy, Ana Lisa Taylor Tavares, Ellen R.A. Thomas, Simon R. Thompson, Arianna Tucci, Matthew J. Welland, Eleanor Williams, Katarzyna Witkowska, and Suzanne M. Wood

Subjects
Ophthalmology, All institutes and research themes of the Radboud University Medical Center, Sensory disorders Donders Center for Medical Neuroscience [Radboudumc 12]
Abstract

To characterize the phenotype observed in a case series with macular disease and determine the cause.Multicenter case series.Six families (7 patients) with sporadic or multiplex macular disease with onset at 20 to 78 years, and 1 patient with age-related macular degeneration.Patients underwent ophthalmic examination; exome, genome, or targeted sequencing; and/or polymerase chain reaction (PCR) amplification of the breakpoint, followed by cloning and Sanger sequencing or direct Sanger sequencing.Clinical phenotypes, genomic findings, and a hypothesis explaining the mechanism underlying disease in these patients.All 8 cases carried the same deletion encompassing the genes TPRX1, CRX, and SULT2A1, which was absent from 382 control individuals screened by breakpoint PCR and 13 096 Clinical Genetics patients with a range of other inherited conditions screened by array comparative genomic hybridization. Microsatellite genotypes showed that these 7 families are not closely related, but genotypes immediately adjacent to the deletion breakpoints suggest they may share a distant common ancestor.Previous studies had found that carriers for a single defective CRX allele that was predicted to produce no functional CRX protein had a normal ocular phenotype. Here, we show that CRX whole-gene deletion in fact does cause a dominant late-onset macular disease.

Published
2023
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3. SOX11 variants cause a neurodevelopmental disorder with infrequent ocular malformations and hypogonadotropic hypogonadism and with distinct DNA methylation profile

Author

Reem Al-Jawahiri, Aidin Foroutan, Jennifer Kerkhof, Haley McConkey, Michael Levy, Sadegheh Haghshenas, Kathleen Rooney, Jasmin Turner, Debbie Shears, Muriel Holder, Henrietta Lefroy, Bruce Castle, Linda M. Reis, Elena V. Semina, Katherine Lachlan, Kate Chandler, Thomas Wright, Jill Clayton-Smith, Franziska Phan Hug, Nelly Pitteloud, Lucia Bartoloni, Sabine Hoffjan, Soo-Mi Park, Ajay Thankamony, Melissa Lees, Emma Wakeling, Swati Naik, Britta Hanker, Katta M. Girisha, Emanuele Agolini, Zampino Giuseppe, Ziegler Alban, Marine Tessarech, Boris Keren, Alexandra Afenjar, Christiane Zweier, Andre Reis, Thomas Smol, Yoshinori Tsurusaki, Okamoto Nobuhiko, Futoshi Sekiguchi, Naomi Tsuchida, Naomichi Matsumoto, Ikuyo Kou, Yoshiro Yonezawa, Shiro Ikegawa, Bert Callewaert, Megan Freeth, Lotte Kleinendorst, Alan Donaldson, Marielle Alders, Anne De Paepe, Bekim Sadikovic, Alisdair McNeill, Deborah Nickerson, Michael Bamshad, Suzanne Leal, John C. Ambrose, Prabhu Arumugam, Roel Bevers, Marta Bleda, Freya Boardman-Pretty, Christopher R. Boustred, Helen Brittain, Mark J. Caulfield, Georgia C. Chan, Greg Elgar, Tom Fowler, Adam Giess, Angela Hamblin, Shirley Henderson, Tim J.P. Hubbard, Rob Jackson, Louise J. Jones, Dalia Kasperaviciute, Melis Kayikci, Athanasios Kousathanas, Lea Lahnstein, Sarah E.A. Leigh, Ivonne U.S. Leong, Javier F. Lopez, null FionaMaleady-Crowe, Meriel McEntagart, Federico Minneci, Loukas Moutsianas, Michael Mueller, Nirupa Murugaesu, Anna C. Need, Peter O’Donovan, Chris A. Odhams, Christine Patch, Mariana Buongermino Pereira, Daniel Perez-Gil, John Pullinger, null TahrimaRahim, Augusto Rendon, null TimRogers, Kevin Savage, Kushmita Sawant, Richard H. Scott, Afshan Siddiq, Alexander Sieghart, Samuel C. Smith, Alona Sosinsky, Alexander Stuckey, Mélanie Tanguy, Ana Lisa Taylor Tavares, Ellen R.A. Thomas, Simon R. Thompson, Arianna Tucci, Matthew J. Welland, Eleanor Williams, Katarzyna Witkowska, Suzanne M. Wood, Human Genetics, AGEM - Amsterdam Gastroenterology Endocrinology Metabolism, ARD - Amsterdam Reproduction and Development, and ACS - Pulmonary hypertension & thrombosis

Subjects
EXPRESSION, MUTATIONS, FEATURES, Hypogonadism, disorder, DNA Methylation, Genome sequencing, Methylation, Article, SOXC Transcription Factors, Klinefelter Syndrome, Phenotype, Neurodevelopmental disorder, Neurodevelopmental Disorders, Exome Sequencing, SOX11, Medicine and Health Sciences, Neurodevelopmental, Humans, Exome, Genetics (clinical)
Abstract

Purpose: This study aimed to undertake a multidisciplinary characterization of the phenotype associated with SOX11 variants. Methods: Individuals with protein altering variants in SOX11 were identified through exome and genome sequencing and international data sharing. Deep clinical phenotyping was undertaken by referring clinicians. Blood DNA methylation was assessed using Infinium MethylationEPIC array. The expression pattern of SOX11 in developing human brain was defined using RNAscope. Results: We reported 38 new patients with SOX11 variants. Idiopathic hypogonadotropic hypogonadism was confirmed as a feature of SOX11 syndrome. A distinctive pattern of blood DNA methylation was identified in SOX11 syndrome, separating SOX11 syndrome from other BAFopathies. Conclusion: SOX11 syndrome is a distinct clinical entity with characteristic clinical features and episignature differentiating it from BAFopathies. (C) 2022 The Authors. Published by Elsevier Inc. on behalf of American College of Medical Genetics and Genomics.

Published
2022

4. Author response for 'Biallelic TMEM260 variants cause Truncus Arteriosus, with or without renal defects'

Author

null Alistair T. Pagnamenta, null Adam Jackson, null Rahat Perveen, null Glenda Beaman, null Gemma Petts, null Asheeta Gupta, null Zerin Hyder, null Brian Hon‐Yin Chung, null Anita Sik‐Yau Kan, null Ka Wang Cheung, null Wilhelmina S. Kerstjens‐Frederikse, null Kristin M. Abbott, null John C. Ambrose, null Prabhu Arumugam, null Roel Bevers, null Marta Bleda, null Freya Boardman‐Pretty, null Christopher R. Boustred, null Helen Brittain, null Mark J. Caulfield, null Georgia C. Chan, null Greg Elgar, null Tom Fowler, null Adam Giess, null Angela Hamblin, null Shirley Henderson, null Tim J. P. Hubbard, null Rob Jackson, null Louise J. Jones, null Dalia Kasperaviciute, null Melis Kayikci, null Athanasios Kousathanas, null Lea Lahnstein, null Sarah E. A. Leigh, null Ivonne U. S. Leong, null Javier F. Lopez, null Fiona Maleady‐Crowe, null Meriel McEntagart, null Federico Minneci, null Loukas Moutsianas, null Michael Mueller, null Nirupa Murugaesu, null Anna C. Need, null Peter O′Donovan, null Chris A. Odhams, null Christine Patch, null Mariana Buongermino Pereira, null Daniel Perez‐Gil, null John Pullinger, null Tahrima Rahim, null Augusto Rendon, null Tim Rogers, null Kevin Savage, null Kushmita Sawant, null Richard H. Scott, null Afshan Siddiq, null Alexander Sieghart, null Samuel C. Smith, null Alona Sosinsky, null Alexander Stuckey, null Mélanie Tanguy, null Ana Lisa Taylor Tavares, null Ellen R. A. Thomas, null Simon R. Thompson, null Arianna Tucci, null Matthew J. Welland, null Eleanor Williams, null Katarzyna Witkowska, null Suzanne M. Wood, null Orly Elpeleg, null Jenny C. Taylor, null Siddharth Banka, null Asaf Ta‐Shma, and null Genomics England Research Consortium

Subjects
medicine.medical_specialty, business.industry, Internal medicine, Cardiology, medicine, business, Truncus arteriosus
Published
2021
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5. Evaluating the performance of a clinical genome sequencing program for diagnosis of rare genetic disease, seen through the lens of craniosynostosis

Author

Zerin Hyder, Eduardo Calpena, Yang Pei, Rebecca S. Tooze, Helen Brittain, Stephen R.F. Twigg, Deirdre Cilliers, Jenny E.V. Morton, Emma McCann, Astrid Weber, Louise C. Wilson, Andrew G.L. Douglas, Ruth McGowan, Anna Need, Andrew Bond, Ana Lisa Taylor Tavares, Ellen R.A. Thomas, John C. Ambrose, Prabhu Arumugam, Roel Bevers, Marta Bleda, Christopher R. Boustred, Georgia C. Chan, Greg Elgar, Tom Fowler, Adam Giess, Angela Hamblin, Shirley Henderson, Tim J.P. Hubbard, Rob Jackson, Louise J. Jones, Dalia Kasperaviciute, Melis Kayikci, Athanasios Kousathanas, Lea Lahnstein, Sarah E.A. Leigh, Ivonne U.S. Leong, Javier F. Lopez, Fiona Maleady-Crowe, Meriel McEntagart, Federico Minneci, Loukas Moutsianas, Michael Mueller, Nirupa Murugaesu, Peter O’Donovan, Chris A. Odhams, Christine Patch, Mariana Buongermino Pereira, Daniel Perez-Gil, John Pullinger, Tahrima Rahim, Augusto Rendon, Tim Rogers, Kevin Savage, Kushmita Sawant, Afshan Siddiq, Alexander Sieghart, Samuel C. Smith, Alona Sosinsky, Alexander Stuckey, Mélanie Tanguy, Simon R. Thompson, Arianna Tucci, Matthew J. Welland, Eleanor Williams, Katarzyna Witkowska, Suzanne M. Wood, Susan L. Hill, Zandra C. Deans, Freya Boardman-Pretty, Mark Caulfield, Richard H. Scott, and Andrew O.M. Wilkie

Subjects
Proband, medicine.diagnostic_test, Base Sequence, business.industry, Chromosome Mapping, Genomics, Disease, Bioinformatics, medicine.disease, Genome, DNA sequencing, Article, Craniosynostosis, Craniosynostoses, Rare Diseases, medicine, Humans, Genetic Testing, Medical diagnosis, business, Genetics (clinical), Genetic testing
Abstract

PurposeGenome sequencing (GS) for diagnosis of rare genetic disease is being introduced into the clinic, but the complexity of the data poses challenges for developing pipelines with high diagnostic sensitivity. We evaluated the performance of the Genomics England 100,000 Genomes Project (100kGP) panel-based pipelines, using craniosynostosis as a test disease.MethodsGS data from 114 probands with craniosynostosis and their relatives (314 samples), negative on routine genetic testing, were scrutinized by a specialized research team, and diagnoses compared with those made by 100kGP.ResultsSixteen likely pathogenic/pathogenic variants were identified by 100kGP. Eighteen additional likely pathogenic/pathogenic variants were identified by the research team, indicating that for craniosynostosis, 100kGP panels had a diagnostic sensitivity of only 47%. Measures that could have augmented diagnoses were improved calling of existing panel genes (+18% sensitivity), review of updated panels (+12%), comprehensive analysis of de novo small variants (+29%), and copy-number/structural variants (+9%). Recent NHS England recommendations that partially incorporate these measures should achieve 85% overall sensitivity (+38%).ConclusionGS identified likely pathogenic/pathogenic variants in 29.8% of previously undiagnosed patients with craniosynostosis. This demonstrates the value of research analysis and the importance of continually improving algorithms to maximize the potential of clinical GS.

Published
2021
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