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173 results on '"Moqtaderi, Zarmik"'

3. High-throughput sequencing reveals a simple model of nucleosome energetics

Author

Locke, George, Tolkunov, Denis, Moqtaderi, Zarmik, Struhl, Kevin, and Morozov, Alexandre V.

Subjects
Quantitative Biology - Genomics, Quantitative Biology - Biomolecules
Abstract

We use nucleosome maps obtained by high-throughput sequencing to study sequence specificity of intrinsic histone-DNA interactions. In contrast with previous approaches, we employ an analogy between a classical one-dimensional fluid of finite-size particles in an arbitrary external potential and arrays of DNA-bound histone octamers. We derive an analytical solution to infer free energies of nucleosome formation directly from nucleosome occupancies measured in high-throughput experiments. The sequence-specific part of free energies is then captured by fitting them to a sum of energies assigned to individual nucleotide motifs. We have developed hierarchical models of increasing complexity and spatial resolution, establishing that nucleosome occupancies can be explained by systematic differences in mono- and dinucleotide content between nucleosomal and linker DNA sequences, with periodic dinucleotide distributions and longer sequence motifs playing a secondary role. Furthermore, similar sequence signatures are exhibited by control experiments in which genomic DNA is either sonicated or digested with micrococcal nuclease in the absence of nucleosomes, making it possible that current predictions based on high-throughput nucleosome positioning maps are biased by experimental artifacts., Comment: 36 pages, 13 figures

Published
2010
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4. Intrinsic histone-DNA interactions are not the major determinant of nucleosome positions in vivo

Author

Zhang, Yong, Moqtaderi, Zarmik, Rattner, Barbara P, Euskirchen, Ghia, Snyder, Michael, Kadonaga, James T, Liu, X Shirley, and Struhl, Kevin

Subjects
Genetics, Chromatin, DNA, Bacterial, DNA, Fungal, Endodeoxyribonucleases, Escherichia coli, Escherichia coli Proteins, Histones, Nucleosomes, Protein Binding, Saccharomyces cerevisiae, Saccharomyces cerevisiae Proteins, Sequence Analysis, DNA, Transcription Initiation Site, Transcription, Genetic, Chemical Sciences, Biological Sciences, Medical and Health Sciences, Biophysics, Developmental Biology
Abstract

We assess the role of intrinsic histone-DNA interactions by mapping nucleosomes assembled in vitro on genomic DNA. Nucleosomes strongly prefer yeast DNA over Escherichia coli DNA, indicating that the yeast genome evolved to favor nucleosome formation. Many yeast promoter and terminator regions intrinsically disfavor nucleosome formation, and nucleosomes assembled in vitro show strong rotational positioning. Nucleosome arrays generated by the ACF assembly factor have fewer nucleosome-free regions, reduced rotational positioning and less translational positioning than obtained by intrinsic histone-DNA interactions. Notably, nucleosomes assembled in vitro have only a limited preference for specific translational positions and do not show the pattern observed in vivo. Our results argue against a genomic code for nucleosome positioning, and they suggest that the nucleosomal pattern in coding regions arises primarily from statistical positioning from a barrier near the promoter that involves some aspect of transcriptional initiation by RNA polymerase II.

Published
2009

18. An integrated encyclopedia of DNA elements in the human genome

Author

Dunham, Ian, Kundaje, Anshul, Aldred, Shelley F., Collins, Patrick J., Davis, Carrie A., Doyle, Francis, Epstein, Charles B., Frietze, Seth, Harrow, Jennifer, Kaul, Rajinder, Khatun, Jainab, Lajoie, Bryan R., Landt, Stephen G., Lee, Bum-Kyu, Pauli, Florencia, Rosenbloom, Kate R., Sabo, Peter, Safi, Alexias, Sanyal, Amartya, Shoresh, Noam, Simon, Jeremy M., Song, Lingyun, Trinklein, Nathan D., Altshuler, Robert C., Birney, Ewan, Brown, James B., Cheng, Chao, Djebali, Sarah, Dong, Xianjun, Ernst, Jason, Furey, Terrence S., Gerstein, Mark, Giardine, Belinda, Greven, Melissa, Hardison, Ross C., Harris, Robert S., Herrero, Javier, Hoffman, Michael M., Iyer, Sowmya, Kellis, Manolis, Kheradpour, Pouya, Lassmann, Timo, Li, Qunhua, Lin, Xinying, Marinov, Georgi K., Merkel, Angelika, Mortazavi, Ali, Parker, Stephen C. J., Reddy, Timothy E., Rozowsky, Joel, Schlesinger, Felix, Thurman, Robert E., Wang, Jie, Ward, Lucas D., Whitfield, Troy W., Wilder, Steven P., Wu, Weisheng, Xi, Hualin S., Yip, Kevin Y., Zhuang, Jiali, Bernstein, Bradley E., Green, Eric D., Gunter, Chris, Snyder, Michael, Pazin, Michael J., Lowdon, Rebecca F., Dillon, Laura A. L., Adams, Leslie B., Kelly, Caroline J., Zhang, Julia, Wexler, Judith R., Good, Peter J., Feingold, Elise A., Crawford, Gregory E., Dekker, Job, Elnitski, Laura, Farnham, Peggy J., Giddings, Morgan C., Gingeras, Thomas R., Guigo, Roderic, Hubbard, Timothy J., Kent, W. James, Lieb, Jason D., Margulies, Elliott H., Myers, Richard M., Stamatoyannopoulos, John A., Tenenbaum, Scott A., Weng, Zhiping, White, Kevin P., Wold, Barbara, Yu, Yanbao, Wrobel, John, Risk, Brian A., Gunawardena, Harsha P., Kuiper, Heather C., Maier, Christopher W., Xie, Ling, Chen, Xian, Mikkelsen, Tarjei S., Gillespie, Shawn, Goren, Alon, Ram, Oren, Zhang, Xiaolan, Wang, Li, Issner, Robbyn, Coyne, Michael J., Durham, Timothy, Ku, Manching, Truong, Thanh, Eaton, Matthew L., Dobin, Alex, Tanzer, Andrea, Lagarde, Julien, Lin, Wei, Xue, Chenghai, Williams, Brian A., Zaleski, Chris, Roder, Maik, Kokocinski, Felix, Abdelhamid, Rehab F., Alioto, Tyler, Antoshechkin, Igor, Baer, Michael T., Batut, Philippe, Bell, Ian, Bell, Kimberly, Chakrabortty, Sudipto, Chrast, Jacqueline, Curado, Joao, Derrien, Thomas, Drenkow, Jorg, Dumais, Erica, Dumais, Jackie, Duttagupta, Radha, Fastuca, Megan, Fejes-Toth, Kata, Ferreira, Pedro, Foissac, Sylvain, Fullwood, Melissa J., Gao, Hui, Gonzalez, David, Gordon, Assaf, Howald, Cedric, Jha, Sonali, Johnson, Rory, Kapranov, Philipp, King, Brandon, Kingswood, Colin, Li, Guoliang, Luo, Oscar J., Park, Eddie, Preall, Jonathan B., Presaud, Kimberly, Ribeca, Paolo, Robyr, Daniel, Ruan, Xiaoan, Sammeth, Michael, Sandhu, Kuljeet Singh, Schaeffer, Lorain, See, Lei-Hoon, Shahab, Atif, Skancke, Jorgen, Suzuki, Ana Maria, Takahashi, Hazuki, Tilgner, Hagen, Trout, Diane, Walters, Nathalie, Wang, Huaien, Hayashizaki, Yoshihide, Reymond, Alexandre, Antonarakis, Stylianos E., Hannon, Gregory J., Ruan, Yijun, Carninci, Piero, Sloan, Cricket A., Learned, Katrina, Malladi, Venkat S., Wong, Matthew C., Barber, Galt P., Cline, Melissa S., Dreszer, Timothy R., Heitner, Steven G., Karolchik, Donna, Kirkup, Vanessa M., Meyer, Laurence R., Long, Jeffrey C., Maddren, Morgan, Raney, Brian J., Grasfeder, Linda L., Giresi, Paul G., Battenhouse, Anna, Sheffield, Nathan C., Showers, Kimberly A., London, Darin, Bhinge, Akshay A., Shestak, Christopher, Schaner, Matthew R., Ki Kim, Seul, Zhang, Zhuzhu Z., Mieczkowski, Piotr A., Mieczkowska, Joanna O., Liu, Zheng, McDaniell, Ryan M., Ni, Yunyun, Rashid, Naim U., Kim, Min Jae, Adar, Sheera, Zhang, Zhancheng, Wang, Tianyuan, Winter, Deborah, Keefe, Damian, Iyer, Vishwanath R., Zheng, Meizhen, Wang, Ping, Gertz, Jason, Vielmetter, Jost, Partridge, E., Varley, Katherine E., Gasper, Clarke, Bansal, Anita, Pepke, Shirley, Jain, Preti, Amrhein, Henry, Bowling, Kevin M., Anaya, Michael, Cross, Marie K., Muratet, Michael A., Newberry, Kimberly M., McCue, Kenneth, Nesmith, Amy S., Fisher-Aylor, Katherine I., Pusey, Barbara, DeSalvo, Gilberto, Parker, Stephanie L., Balasubramanian, Sreeram, Davis, Nicholas S., Meadows, Sarah K., Eggleston, Tracy, Newberry, J. Scott, Levy, Shawn E., Absher, Devin M., Wong, Wing H., Blow, Matthew J., Visel, Axel, Pennachio, Len A., Petrykowska, Hanna M., Abyzov, Alexej, Aken, Bronwen, Barrell, Daniel, Barson, Gemma, Berry, Andrew, Bignell, Alexandra, Boychenko, Veronika, Bussotti, Giovanni, Davidson, Claire, Despacio-Reyes, Gloria, Diekhans, Mark, Ezkurdia, Iakes, Frankish, Adam, Gilbert, James, Gonzalez, Jose Manuel, Griffiths, Ed, Harte, Rachel, Hendrix, David A., Hunt, Toby, Jungreis, Irwin, Kay, Mike, Khurana, Ekta, Leng, Jing, Lin, Michael F., Loveland, Jane, Lu, Zhi, Manthravadi, Deepa, Mariotti, Marco, Mudge, Jonathan, Mukherjee, Gaurab, Notredame, Cedric, Pei, Baikang, Rodriguez, Jose Manuel, Saunders, Gary, Sboner, Andrea, Searle, Stephen, Sisu, Cristina, Snow, Catherine, Steward, Charlie, Tapanari, Electra, Tress, Michael L., van Baren, Marijke J., Washietl, Stefan, Wilming, Laurens, Zadissa, Amonida, Zhang, Zhengdong, Brent, Michael, Haussler, David, Valencia, Alfonso, Addleman, Nick, Alexander, Roger P., Auerbach, Raymond K., Balasubramanian, Suganthi, Bettinger, Keith, Bhardwaj, Nitin, Boyle, Alan P., Cao, Alina R., Cayting, Philip, Charos, Alexandra, Cheng, Yong, Eastman, Catharine, Euskirchen, Ghia, Fleming, Joseph D., Grubert, Fabian, Habegger, Lukas, Hariharan, Manoj, Harmanci, Arif, Iyengar, Sushma, Jin, Victor X., Karczewski, Konrad J., Kasowski, Maya, Lacroute, Phil, Lam, Hugo, Lamarre-Vincent, Nathan, Lian, Jin, Lindahl-Allen, Marianne, Min, Renqiang, Miotto, Benoit, Monahan, Hannah, Moqtaderi, Zarmik, Mu, Xinmeng J., Ouyang, Zhengqing, Patacsil, Dorrelyn, Raha, Debasish, Ramirez, Lucia, Reed, Brian, Shi, Minyi, Slifer, Teri, Witt, Heather, Wu, Linfeng, Xu, Xiaoqin, Yan, Koon-Kiu, Yang, Xinqiong, Struhl, Kevin, Weissman, Sherman M., Penalva, Luiz O., Karmakar, Subhradip, Bhanvadia, Raj R., Choudhury, Alina, Domanus, Marc, Ma, Lijia, Moran, Jennifer, Victorsen, Alec, Auer, Thomas, Centanin, Lazaro, Eichenlaub, Michael, Gruhl, Franziska, Heermann, Stephan, Hoeckendorf, Burkhard, Inoue, Daigo, Kellner, Tanja, Kirchmaier, Stephan, Mueller, Claudia, Reinhardt, Robert, Schertel, Lea, Schneider, Stephanie, Sinn, Rebecca, Wittbrodt, Beate, Wittbrodt, Jochen, Partridge, E. Christopher, Jain, Gaurav, Balasundaram, Gayathri, Bates, Daniel L., Byron, Rachel, Canfield, Theresa K., Diegel, Morgan J., Dunn, Douglas, Ebersol, Abigail K., Frum, Tristan, Garg, Kavita, Gist, Erica, Hansen, R. Scott, Boatman, Lisa, Haugen, Eric, Humbert, Richard, Johnson, Audra K., Johnson, Ericka M., Kutyavin, Tattyana V., Lee, Kristen, Lotakis, Dimitra, Maurano, Matthew T., Neph, Shane J., Neri, Fiedencio V., Nguyen, Eric D., Qu, Hongzhu, Reynolds, Alex P., Roach, Vaughn, Rynes, Eric, Sanchez, Minerva E., Sandstrom, Richard S., Shafer, Anthony O., Stergachis, Andrew B., Thomas, Sean, Vernot, Benjamin, Vierstra, Jeff, Vong, Shinny, Weaver, Molly A., Yan, Yongqi, Zhang, Miaohua, Akey, Joshua M., Bender, Michael, Dorschner, Michael O., Groudine, Mark, MacCoss, Michael J., Navas, Patrick, Stamatoyannopoulos, George, Beal, Kathryn, Brazma, Alvis, Flicek, Paul, Johnson, Nathan, Lukk, Margus, Luscombe, Nicholas M., Sobral, Daniel, Vaquerizas, Juan M., Batzoglou, Serafim, Sidow, Arend, Hussami, Nadine, Kyriazopoulou-Panagiotopoulou, Sofia, Libbrecht, Max W., Schaub, Marc A., Miller, Webb, Bickel, Peter J., Banfai, Balazs, Boley, Nathan P., Huang, Haiyan, Li, Jingyi Jessica, Noble, William Stafford, Bilmes, Jeffrey A., Buske, Orion J., Sahu, Avinash D., Kharchenko, Peter V., Park, Peter J., Baker, Dannon, Taylor, James, and Lochovsky, Lucas

Subjects
Genetic research, Human genome -- Research, Genetic transcription -- Research, Environmental issues, Science and technology, Zoology and wildlife conservation
Abstract

The human genome encodes the blueprint of life, but the function of the vast majority of its nearly three billion bases is unknown. The Encyclopedia of DNA Elements (ENCODE) project has systematically mapped regions of transcription, transcription factor association, chromatin structure and histone modification. These data enabled us to assign biochemical functions for 80% of the genome, in particular outside of the well-studied protein-coding regions. Many discovered candidate regulatory elements are physically associated with one another and with expressed genes, providing new insights into the mechanisms of gene regulation. The newly identified elements also show a statistical correspondence to sequence variants linked to human disease, and can thereby guide interpretation of this variation. Overall, the project provides new insights into the organization and regulation of our genes and genome, and is an expansive resource of functional annotations for biomedical research., Author(s): The ENCODE Project Consortium; Overall coordination (data analysis coordination); Ian Dunham [2]; Anshul Kundaje [3, 82]; Data production leads (data production); Shelley F. Aldred [4]; Patrick J. Collins [4]; [...]

Published
2012
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19. SIRT7 links H3K18 deacetylation to maintenance of oncogenic transformation

Author

Barber, Matthew F., Michishita-Kioi, Eriko, Xi, Yuanxin, Tasselli, Luisa, Kioist, Mitomu, Moqtaderi, Zarmik, Tennen, Ruth I., Paredes, Silvana, Young, Nicolas L., Chen, Kaifu, Struhl, Kevin, Garcia, Benjamin A., Gozani, Or, Li, Wei, and Chua, Katrin F.

Subjects
Acetylation -- Research, Oncogenes -- Properties, Genetic transformation -- Research, Environmental issues, Science and technology, Zoology and wildlife conservation
Abstract

Sirtuin proteins regulate diverse cellular pathways that influence genomic stability, metabolism and ageing (1,2). SIRT7 is a mammalian sirtuin whose biochemical activity, molecular targets and physiological functions have been unclear. [...]

Published
2012
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20. Identification and analysis of functional elements in 1% of the human genome by the ENCODE pilot project

Author

Birney, Ewan, Stamatoyannopoulos, John A., Dutta, Anindya, Guigo, Roderic, Gingeras, Thomas R., Margulies, Elliott H., Weng, Zhiping, Snyder, Michael, Dermitzakis, Emmanouil T., Thurman, Robert E., Kuehn, Michael S., Taylor, Christopher M., Neph, Shane, Koch, Christoph M., Asthana, Saurabh, Malhotra, Ankit, Adzhubei, Ivan, Greenbaum, Jason A., Andrews, Robert M., Flicek, Paul, Boyle, Patrick J., Cao, Hua, Carter, Nigel P., Clelland, Gayle K., Davis, Sean, Day, Nathan, Dhami, Pawandeep, Dillon, Shane C., Dorschner, Michael O., Fiegler, Heike, Giresi, Paul G., Goldy, Jeff, Hawrylycz, Michael, Haydock, Andrew, Humbert, Richard, James, Keith D., Johnson, Brett E., Johnson, Ericka M., Frum, Tristan T., Rosenzweig, Elizabeth R., Karnani, Neerja, Lee, Kirsten, Lefebvre, Gregory C., Navas, Patrick A., Neri, Fidencio, Parker, Stephen C. J., Sabo, Peter J., Sandstrom, Richard, Shafer, Anthony, Vetrie, David, Weaver, Molly, Wilcox, Sarah, Yu1, Man, Collins, Francis S., Dekker, Job, Lieb, Jason D., Tullius, Thomas D., Crawford, Gregory E., Sunyaev, Shamil, Noble, William S., Dunham, Ian, Denoeud, France, Reymond, Alexandre, Kapranov, Philipp, Rozowsky, Joel, Zheng, Deyou, Castelo, Robert, Frankish, Adam, Harrow, Jennifer, Ghosh, Srinka, Sandelin, Albin, Hofacker, Ivo L., Baertsch, Robert, Keefe, Damian, Dike, Sujit, Cheng, Jill, Hirsch, Heather A., Sekinger, Edward A., Lagarde, Julien, Abril, Josep F., Shahab, Atif, Flamm, Christoph, Fried, Claudia, Hackermuller, Jorg, Hertel, Jana, Lindemeyer, Manja, Missal, Kristin, Tanzer, Andrea, Washietl, Stefan, Korbel, Jan, Emanuelsson, Olof, Pedersen, Jakob S., Holroyd, Nancy, Taylor, Ruth, Swarbreck, David, Matthews, Nicholas, Dickson, Mark C., Thomas, Daryl J., Weirauch, Matthew T., Gilbert, James, Drenkow, Jorg, Bell, Ian, Zhao, XiaoDong, Srinivasan, K.G., Sung, Wing-Kin, Ooi, Hong Sain, Chiu, Kuo Ping, Foissac, Sylvain, Alioto, Tyler, Brent, Michael, Pachter, Lior, Tress, Michael L., Valencia, Alfonso, Choo, Siew Woh, Choo, Chiou Yu, Ucla, Catherine, Manzano, Caroline, Wyss, Carine, Cheung, Evelyn, Clark, Taane G., Brown, James B., Ganesh, Madhavan, Patel, Sandeep, Tammana, Hari, Chrast, Jacqueline, Henrichsen, Charlotte N., Kai, Chikatoshi, Kawai, Jun, Nagalakshmi, Ugrappa, Wu, Jiaqian, Lian, Zheng, Lian, Jin, Newburger, Peter, Zhang, Xueqing, Bickel, Peter, Mattick, John S., Carninci, Piero, Hayashizaki, Yoshihide, Weissman, Sherman, Hubbard, Tim, Myers, Richard M., Rogers, Jane, Stadler, Peter F., Lowe, Todd M., Wei, Chia-Lin, Ruan, Yijun, Struhl, Kevin, Gerstein, Mark, Antonarakis, Stylianos E., Fu, Yutao, Green, Eric D., Karaoz, Ulaş, Siepel, Adam, Taylor, James, Liefer, Laura A., Wetterstrand, Kris A., Good, Peter J., Feingold, Elise A., Guyer, Mark S., Cooper, Gregory M., Asimenos, George, Dewey, Colin N., Hou, Minmei, Nikolaev, Sergey, Montoya-Burgos, Juan I., Loytynoja, Ari, Whelan, Simon, Pardi, Fabio, Massingham, Tim, Huang, Haiyan, Zhang, Nancy R., Holmes, Ian, Mullikin, James C., Ureta-Vidal, Abel, Paten, Benedict, Seringhaus, Michael, Church, Deanna, Rosenbloom, Kate, Kent, W. James, Stone, Eric A., Batzoglou, Serafim, Goldman, Nick, Hardison, Ross C., Haussler, David, Miller, Webb, Sidow, Arend, Trinklein, Nathan D., Zhang, Zhengdong D., Barrera, Leah, Stuart, Rhona, King, David C., Ameur, Adam, Enroth, Stefan, Bieda, Mark C., Kim, Jonghwan, Bhinge, Akshay A., Jiang, Nan, Liu, Jun, Yao, Fei, Vega, Vinsensius B., Lee, Charlie W.H., Ng, Patrick, Yang, Annie, Moqtaderi, Zarmik, Zhu, Zhou, Xu, Xiaoqin, Squazzo, Sharon, Oberley, Matthew J., Inman, David, Singer, Michael A., Richmond, Todd A., Munn, Kyle J., Rada-Iglesias, Alvaro, Wallerman, Ola, Komorowski, Jan, Fowler, Joanna C., Couttet, Phillippe, Bruce, Alexander W., Dovey, Oliver M., Ellis, Peter D., Langford, Cordelia F., Nix, David A., Euskirchen, Ghia, Hartman, Stephen, Urban, Alexander E., Kraus, Peter, Van Calcar, Sara, Heintzman, Nate, Hoon Kim, Tae, Wang, Kun, Qu, Chunxu, Hon, Gary, Luna, Rosa, Glass, Christopher K., Rosenfeld, M. Geoff, Aldred, Shelley Force, Cooper, Sara J., Halees, Anason, Lin, Jane M., Shulha, Hennady P., Zhang, Xiaoling, Xu, Mousheng, Haidar, Jaafar N. S., Yu, Yong, Birney*, Ewan, Iyer, Vishwanath R., Green, Roland D., Wadelius, Claes, Farnham, Peggy J., Ren, Bing, Harte, Rachel A., Hinrichs, Angie S., Trumbower, Heather, Clawson, Hiram, Hillman-Jackson, Jennifer, Zweig, Ann S., Smith, Kayla, Thakkapallayil, Archana, Barber, Galt, Kuhn, Robert M., Karolchik, Donna, Armengol, Lluis, Bird, Christine P., de Bakker, Paul I. W., Kern, Andrew D., Lopez-Bigas, Nuria, Martin, Joel D., Stranger, Barbara E., Woodroffe, Abigail, Davydov, Eugene, Dimas, Antigone, Eyras, Eduardo, Hallgrimsdottir, Ingileif B., Huppert, Julian, Zody, Michael C., Abecasis, Goncalo R., Estivill, Xavier, Bouffard, Gerard G., Guan, Xiaobin, Hansen, Nancy F., Idol, Jacquelyn R., Maduro, Valerie V.B., Maskeri, Baishali, McDowell, Jennifer C., Park, Morgan, Thomas, Pamela J., Young, Alice C., Blakesley, Robert W., Baylor College of Medicine, Human Genome Sequencing Center, Muzny, Donna M., Sodergren, Erica, Wheeler, David A., Worley, Kim C., Jiang, Huaiyang, Weinstock, George M., Gibbs, Richard A., Graves, Tina, Fulton, Robert, Mardis, Elaine R., Wilson, Richard K., Clamp, Michele, Cuff, James, Gnerre, Sante, Jaffe, David B., Chang, Jean L., Lindblad-Toh, Kerstin, Lander, Eric S., Koriabine, Maxim, Nefedov, Mikhail, Osoegawa, Kazutoyo, Yoshinaga, Yuko, Zhu, Baoli, and de Jong, Pieter J.

Subjects
Environmental issues, Science and technology, Zoology and wildlife conservation
Abstract

Author(s): The ENCODE Project Consortium; Analysis Coordination; Ewan Birney (corresponding author) [1]; John A. Stamatoyannopoulos (corresponding author) [2]; Anindya Dutta (corresponding author) [3]; Roderic Guigó (corresponding author) [4, 5]; Thomas [...]

Published
2007
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23. The TAFs in the HAT

Author

Struhl, Kevin and Moqtaderi, Zarmik

Subjects
Protein binding -- Analysis, Biochemistry -- Analysis, Biological sciences
Abstract

The transcriptional roles of ten associated factors (TAFs) and their corresponding biochemical influence within the context of the multiprotein complex TFIID were reviewed. TAFs play a major role in core promoter functions as well as enhancing the level of transcription derived from TATA containing promoters. In addition, previous studies have uncovered TAFs' function in the SAGA complex.

Published
1998

24. TBP-associated factors are not generally required for transcriptional activation in yeast

Author

Moqtaderi, Zarmik, Bai, Yu, Poon, David, Weil, P. Anthony, and Struhl, Kevin

Subjects
Genetic transcription -- Regulation, Gene mutations -- Physiological aspects, Yeast -- Physiological aspects, Environmental issues, Science and technology, Zoology and wildlife conservation
Abstract

The transcription of many genes is activated in yeast mutants lacking the TATA-binding protein-associated factors (TAF). The activation of transcription by the Gcn4, Ace1, Gal4 and Hsf promoters, and promoters of ded1 and his3 + 13 transcription is unaffected by the TAF mutations. However, genetic transcription is impaired in cells that lack the TFIID transcription factor.

Published
1996

28. Systematic evaluation of variability in ChIP-chip experiments using predefined DNA targets

Author

Johnson, David S., Wei Li, Gordon, Bhattacharjee, Arindam, Curry, Bo, Ghosh, Jayati, Brizuela, Leonardo, Carroll, Jason S. Brown, Myles, Flicek, Paull, Koch, Christoph M., Dunham, Ian, Bieda, Mark, Xiao, Xinmin Zhang, Holster, Heather, Nan Jiang, Green, Roland D., Jun S. Song, McCuine, Scott A., Anton, Elizabeth, Nguyen, Loan, Trinklein, Nathan D., Zhen Ye, Ching, Keith, Hawkins, David, Scacheri, Peter C., Rozowsky, Joel, Karpikov, Alexander, Euskirchen, Ghia, Weissman, Sherman, Gerstein, Mark, Snyder, Michael, Yang, Annie, Moqtaderi, Zarmik, Hirsch, Heather, Shulha, Hennady P., Yutao Fu, Weng, Zhiping, Struhl, Kevin, Myers, Richard M., Lieb, Jason D., and Liu, X. Shirley

Subjects
DNA microarrays -- Research, Human genome -- Research, Molecular biology -- Evaluation, Nucleotide sequencing -- Evaluation, Health
Abstract

An analysis of tilling array platforms, amplification procedures , and signal detection algorithms in a simulated chromatin immunoprecipitation (ChIP-chip) experiment is presented. The unique performance characteristics of each array platform vary with tiling resolution and number of replicates, indicating a possible conflict between cost and detection power.

Published
2008

32. Iwr1 protein is important for preinitiation complex formation by all three nuclear RNA polymerases in Saccharomyces cerevisiae

Author

Esberg, Anders, Moqtaderi, Zarmik, Fan, Xiaochun, Lu, Jian, Struhl, Kevin, Byström, Anders, Esberg, Anders, Moqtaderi, Zarmik, Fan, Xiaochun, Lu, Jian, Struhl, Kevin, and Byström, Anders

Abstract

BACKGROUND: Iwr1, a protein conserved throughout eukaryotes, was originally identified by its physical interaction with RNA polymerase (Pol) II. PRINCIPAL FINDINGS: Here, we identify Iwr1 in a genetic screen designed to uncover proteins involved in Pol III transcription in S. cerevisiae. Iwr1 is important for Pol III transcription, because an iwr1 mutant strain shows reduced association of TBP and Pol III at Pol III promoters, a decreased rate of Pol III transcription, and lower steady-state levels of Pol III transcripts. Interestingly, an iwr1 mutant strain also displays reduced association of TBP to Pol I-transcribed genes and of both TBP and Pol II to Pol II-transcribed promoters. Despite this, rRNA and mRNA levels are virtually unaffected, suggesting a post-transcriptional mechanism compensating for the occupancy defect. CONCLUSIONS: Thus, Iwr1 plays an important role in preinitiation complex formation by all three nuclear RNA polymerases.

Published
2011
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49. Reply to “Evidence against a genomic code for nucleosome positioning”.

Author

Yong Zhang, Moqtaderi, Zarmik, Rattner, Barbara P., Euskirchen, Ghia, Snyder, Michael, Kadonaga, James T., Liu, X. Shirley, and Struhl, Kevin

Subjects
*CELL nuclei, *NUCLEOTIDE sequence, *YEAST fungi genetics, *MEASUREMENT errors, *GENES
Abstract

The authors discuss evidence that contrasts a genomic code for nucleosome positioning. They argue on the usability of nucleosome occupancy measurements to evaluate nucleosome positioning and the effect of systematic errors in nucleosome occupancy measurements that overestimate the similarity between in vivo and in vitro samples. They mention arguments on the responsibility of DNA sequence to deplete nucleosome at most yeast promoter regions in vivo.

Published
2010
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50. Intrinsic histone-DNA interactions are not the major determinant of nucleosome positions in vivo.

Author

Yong Zhang, Moqtaderi, Zarmik, Rattner, Barbara P., Euskirchen, Ghia, Snyder, Michael, Kadonaga, James T., Liu, X. Shirley, and Struhl, Kevin

Subjects
*HISTONES, *DNA, *GENOMICS, *GENOMES, *ESCHERICHIA coli, *RNA polymerases
Abstract

We assess the role of intrinsic histone-DNA interactions by mapping nucleosomes assembled in vitro on genomic DNA. Nucleosomes strongly prefer yeast DNA over Escherichia coli DNA, indicating that the yeast genome evolved to favor nucleosome formation. Many yeast promoter and terminator regions intrinsically disfavor nucleosome formation, and nucleosomes assembled in vitro show strong rotational positioning. Nucleosome arrays generated by the ACF assembly factor have fewer nucleosome-free regions, reduced rotational positioning and less translational positioning than obtained by intrinsic histone-DNA interactions. Notably, nucleosomes assembled in vitro have only a limited preference for specific translational positions and do not show the pattern observed in vivo. Our results argue against a genomic code for nucleosome positioning, and they suggest that the nucleosomal pattern in coding regions arises primarily from statistical positioning from a barrier near the promoter that involves some aspect of transcriptional initiation by RNA polymerase II. [ABSTRACT FROM AUTHOR]

Published
2009
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