Browsing by Subject "transcription factor"
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Item Open Access An integrated map of genetic variation from 1,092 human genomes(Nature Publishing Group, 2012) Altshuler, D.M.; Durbin, R.M.; Abecasis G.R.; Bentley, D.R.; Chakravarti, A.; Clark, A.G.; Donnelly P.; Eichler, E.E.; Flicek P.; Gabriel, S.B.; Gibbs, R.A.; Green, E.D.; Hurles, M.E.; Knoppers, B.M.; Korbel J.O.; Lander, E.S.; Lee, C.; Lehrach H.; Mardis, E.R.; Marth G.T.; McVean G.A.; Nickerson, D.A.; Schmidt J.P.; Sherry, S.T.; Wang, J.; Wilson, R.K.; Dinh H.; Kovar, C.; Lee, S.; Lewis L.; Muzny, D.; Reid J.; Wang, M.; Fang X.; Guo X.; Jian, M.; Jiang H.; Jin X.; Li G.; Li J.; Li Y.; Li, Z.; Liu X.; Lu, Y.; Ma X.; Su, Z.; Tai, S.; Tang, M.; Wang, B.; Wang G.; Wu H.; Wu, R.; Yin, Y.; Zhang W.; Zhao J.; Zhao, M.; Zheng X.; Zhou, Y.; Gupta, N.; Clarke L.; Leinonen, R.; Smith, R.E.; Zheng-Bradley X.; Grocock, R.; Humphray, S.; James, T.; Kingsbury, Z.; Sudbrak, R.; Albrecht, M.W.; Amstislavskiy V.S.; Borodina, T.A.; Lienhard, M.; Mertes F.; Sultan, M.; Timmermann, B.; Yaspo, M.-L.; Fulton L.; Fulton, R.; Weinstock G.M.; Balasubramaniam, S.; Burton J.; Danecek P.; Keane, T.M.; Kolb-Kokocinski, A.; McCarthy, S.; Stalker J.; Quail, M.; Davies, C.J.; Gollub J.; Webster, T.; Wong, B.; Zhan, Y.; Auton, A.; Yu F.; Bainbridge, M.; Challis, D.; Evani, U.S.; Lu J.; Nagaswamy, U.; Sabo, A.; Wang Y.; Yu J.; Coin L.J.M.; Fang L.; Li Q.; Li, Z.; Lin H.; Liu, B.; Luo, R.; Qin, N.; Shao H.; Wang, B.; Xie, Y.; Ye, C.; Yu, C.; Zhang F.; Zheng H.; Zhu H.; Garrison, E.P.; Kural, D.; Lee W.-P.; Fung Leong W.; Ward, A.N.; Wu J.; Zhang, M.; Griffin L.; Hsieh, C.-H.; Mills, R.E.; Shi X.; Von Grotthuss, M.; Zhang, C.; Daly, M.J.; Depristo, M.A.; Banks, E.; Bhatia G.; Carneiro, M.O.; Del Angel G.; Genovese G.; Handsaker, R.E.; Hartl, C.; McCarroll, S.A.; Nemesh J.C.; Poplin, R.E.; Schaffner, S.F.; Shakir, K.; Yoon, S.C.; Lihm J.; Makarov V.; Jin H.; Kim W.; Cheol Kim, K.; Rausch, T.; Beal, K.; Cunningham F.; Herrero J.; McLaren W.M.; Ritchie G.R.S.; Gottipati, S.; Keinan, A.; Rodriguez-Flores J.L.; Sabeti P.C.; Grossman, S.R.; Tabrizi, S.; Tariyal, R.; Cooper, D.N.; Ball, E.V.; Stenson P.D.; Barnes, B.; Bauer, M.; Keira Cheetham, R.; Cox, T.; Eberle, M.; Kahn, S.; Murray L.; Peden J.; Shaw, R.; Ye, K.; Batzer, M.A.; Konkel, M.K.; Walker J.A.; MacArthur, D.G.; Lek, M.; Herwig, R.; Shriver, M.D.; Bustamante, C.D.; Byrnes J.K.; De La Vega F.M.; Gravel, S.; Kenny, E.E.; Kidd J.M.; Maples, B.K.; Moreno-Estrada, A.; Zakharia F.; Halperin, E.; Baran, Y.; Craig, D.W.; Christoforides, A.; Homer, N.; Izatt, T.; Kurdoglu, A.A.; Sinari, S.A.; Squire, K.; Xiao, C.; Sebat J.; Bafna V.; Ye, K.; Burchard, E.G.; Hernandez, R.D.; Gignoux, C.R.; Haussler, D.; Katzman, S.J.; James Kent W.; Howie, B.; Ruiz-Linares, A.; Dermitzakis, E.T.; Lappalainen, T.; Devine, S.E.; Liu X.; Maroo, A.; Tallon L.J.; Rosenfeld J.A.; Michelson L.P.; Min Kang H.; Anderson P.; Angius, A.; Bigham, A.; Blackwell, T.; Busonero F.; Cucca F.; Fuchsberger, C.; Jones, C.; Jun G.; Li Y.; Lyons, R.; Maschio, A.; Porcu, E.; Reinier F.; Sanna, S.; Schlessinger, D.; Sidore, C.; Tan, A.; Kate Trost, M.; Awadalla P.; Hodgkinson, A.; Lunter G.; Marchini J.L.; Myers, S.; Churchhouse, C.; Delaneau O.; Gupta-Hinch, A.; Iqbal, Z.; Mathieson I.; Rimmer, A.; Xifara, D.K.; Oleksyk, T.K.; Fu, Y.; Liu X.; Xiong, M.; Jorde L.; Witherspoon, D.; Xing J.; Browning, B.L.; Alkan C.; Hajirasouliha I.; Hormozdiari F.; Ko, A.; Sudmant P.H.; Chen, K.; Chinwalla, A.; Ding L.; Dooling, D.; Koboldt, D.C.; McLellan, M.D.; Wallis J.W.; Wendl, M.C.; Zhang Q.; Tyler-Smith, C.; Albers, C.A.; Ayub Q.; Chen, Y.; Coffey, A.J.; Colonna V.; Huang, N.; Jostins L.; Li H.; Scally, A.; Walter, K.; Xue, Y.; Zhang, Y.; Gerstein, M.B.; Abyzov, A.; Balasubramanian, S.; Chen J.; Clarke, D.; Fu, Y.; Habegger L.; Harmanci, A.O.; Jin, M.; Khurana, E.; Jasmine Mu X.; Sisu, C.; Degenhardt J.; Stütz, A.M.; Keira Cheetham, R.; Church, D.; Michaelson J.J.; Blackburne, B.; Lindsay, S.J.; Ning, Z.; Frankish, A.; Harrow J.; Mu X.J.; Fowler G.; Hale W.; Kalra, D.; Barker J.; Kelman G.; Kulesha, E.; Radhakrishnan, R.; Roa, A.; Smirnov, D.; Streeter I.; Toneva I.; Vaughan, B.; Ananiev V.; Belaia, Z.; Beloslyudtsev, D.; Bouk, N.; Chen, C.; Cohen, R.; Cook, C.; Garner J.; Hefferon, T.; Kimelman, M.; Liu, C.; Lopez J.; Meric P.; O'Sullivan, C.; Ostapchuk, Y.; Phan L.; Ponomarov, S.; Schneider V.; Shekhtman, E.; Sirotkin, K.; Slotta, D.; Zhang H.; Barnes, K.C.; Beiswanger, C.; Cai H.; Cao H.; Gharani, N.; Henn, B.; Jones, D.; Kaye J.S.; Kent, A.; Kerasidou, A.; Mathias, R.; Ossorio P.N.; Parker, M.; Reich, D.; Rotimi, C.N.; Royal, C.D.; Sandoval, K.; Su, Y.; Tian, Z.; Tishkoff, S.; Toji L.H.; Via, M.; Wang Y.; Yang H.; Yang L.; Zhu J.; Bodmer W.; Bedoya G.; Ming, C.Z.; Yang G.; Jia You, C.; Peltonen L.; Garcia-Montero, A.; Orfao, A.; Dutil J.; Martinez-Cruzado J.C.; Brooks L.D.; Felsenfeld, A.L.; McEwen J.E.; Clemm, N.C.; Duncanson, A.; Dunn, M.; Guyer, M.S.; Peterson J.L.; Lacroute P.By characterizing the geographic and functional spectrum of human genetic variation, the 1000 Genomes Project aims to build a resource to help to understand the genetic contribution to disease. Here we describe the genomes of 1,092 individuals from 14 populations, constructed using a combination of low-coverage whole-genome and exome sequencing. By developing methods to integrate information across several algorithms and diverse data sources, we provide a validated haplotype map of 38 million single nucleotide polymorphisms, 1.4 million short insertions and deletions, and more than 14,000 larger deletions. We show that individuals from different populations carry different profiles of rare and common variants, and that low-frequency variants show substantial geographic differentiation, which is further increased by the action of purifying selection. We show that evolutionary conservation and coding consequence are key determinants of the strength of purifying selection, that rare-variant load varies substantially across biological pathways, and that each individual contains hundreds of rare non-coding variants at conserved sites, such as motif-disrupting changes in transcription-factor-binding sites. This resource, which captures up to 98% of accessible single nucleotide polymorphisms at a frequency of 1% in related populations, enables analysis of common and low-frequency variants in individuals from diverse, including admixed, populations. © 2012 Macmillan Publishers Limited. All rights reserved.Item Open Access PATZ1 is a DNA damage-responsive transcription factor that inhibits p53 function(American Society for Microbiology, 2015) Keskin, N.; Deniz, E.; Eryilmaz J.; Un, M.; Batur, T.; Ersahin, T.; Atalay, R.C.; Sakaguchi, S.; Ellmeier W.; Erman, B.Insults to cellular health cause p53 protein accumulation, and loss of p53 function leads to tumorigenesis. Thus, p53 has to be tightly controlled. Here we report that the BTB/POZ domain transcription factor PATZ1 (MAZR), previously known for its transcriptional suppressor functions in T lymphocytes, is a crucial regulator of p53. The novel role of PATZ1 as an inhibitor of the p53 protein marks its gene as a proto-oncogene. PATZ1-deficient cells have reduced proliferative capacity, which we assessed by transcriptome sequencing (RNA-Seq) and real-time cell growth rate analysis. PATZ1 modifies the expression of p53 target genes associated with cell proliferation gene ontology terms. Moreover, PATZ1 regulates several genes involved in cellular adhesion and morphogenesis. Significantly, treatment with the DNA damage-inducing drug doxorubicin results in the loss of the PATZ1 transcription factor as p53 accumulates. We find that PATZ1 binds to p53 and inhibits p53-dependent transcription activation. We examine the mechanism of this functional inhibitory interaction and demonstrate that PATZ1 excludes p53 from DNA binding. This study documents PATZ1 as a novel player in the p53 pathway. © 2015, American Society for Microbiology.Item Open Access SIP1 is downregulated in hepatocellular carcinoma by promoter hypermethylation(2011) Acun, T.; Oztas, E.; Yagci, T.; Yakicier, M.C.Background: Smad interacting protein-1 is a transcription factor that is implicated in transforming growth factor-β/bone morphogenetic protein signaling and a repressor of E-cadherin and human telomerase reverse transcriptase. It is also involved in epithelial-mesenchymal transition and tumorigenesis. However, genetic and epigenetic alterations of SIP1 have not been fully elucidated in cancers. In this study, we investigated mutations and promoter hypermethylation of the SIP1 gene in human hepatocellular carcinomas.Methods: SIP1 expression was analyzed in HCC cell lines and primary tumors in comparison to normal and non-tumor liver tissues by using semi-quantitative RT-PCR, quantitative real-time RT-PCR and immunohistochemistry. Mutation and deletion screening of the SIP1 gene were performed by direct sequencing in HCC-derived cells. Restoration of SIP1 expression was sought by treating HCC cell lines with the DNA methyl transferase inhibitor, 5-AzaC, and the histone deacetylase inhibitor, TSA. SIP1 promoter methylation was analyzed by the combined bisulfite restriction analysis assay in in silico-predicted putative promoter and CpG island regions.Results: We found that the expression of SIP1 was completely lost or reduced in five of 14 (36%) HCC cell lines and 17 of 23 (74%) primary HCC tumors. Immunohistochemical analysis confirmed that SIP1 mRNA downregulation was associated with decreased expression of the SIP1 protein in HCC tissues (82.8%). No somatic mutation was observed in SIP1 exons in any of the 14 HCC cell lines. Combined treatment with DNA methyl transferase and histone deacetylase inhibitors synergistically restored SIP1 expression in SIP1-negative cell lines. Analysis of three putative gene regulatory regions revealed tumor-specific methylation in more than half of the HCC cases.Conclusions: Epigenetic mechanisms contribute significantly to the downregulation of SIP1 expression in HCC. This finding adds a new level of complexity to the role of SIP1 in hepatocarcinogenesis. © 2011 Acun et al; licensee BioMed Central Ltd.