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Cited 24 times in

A novel POK family transcription factor, ZBTB5, represses transcription of p21CIP1 gene.

DC Field Value Language
dc.contributor.author윤채옥-
dc.contributor.author전부남-
dc.contributor.author최원일-
dc.contributor.author허만욱-
dc.date.accessioned2015-04-24T16:38:08Z-
dc.date.available2015-04-24T16:38:08Z-
dc.date.issued2009-
dc.identifier.issn0021-9258-
dc.identifier.urihttps://ir.ymlib.yonsei.ac.kr/handle/22282913/103885-
dc.description.abstractTranscriptional repression through chromatin remodeling and histone deacetylation has been postulated as a driving force for tumorigenesis. We isolated and characterized a novel POZ domain Krüppel-like zinc finger transcription repressor, ZBTB5 (zinc finger and BTB domain-containing 5). Serial analysis of gene expression (SAGE) analysis showed that ZBTB5 expression is higher in retinoblastoma and muscle cancer tissues. Immunocytochemistry showed that ZBTB5 was localized to the nucleus, particularly nuclear speckles. ZBTB5 directly repressed transcription of cell cycle arrest gene p21 by binding to the proximal GC-box 5/6 elements and the two distal p53-responsive elements (bp -2323 approximately -2299; bp -1416 approximately -1392). Chromatin immunoprecipitation assays showed that ZBTB5 and p53 competed with each other in occupying the p53 binding elements. ZBTB5 interacted with co-repressor-histone deacetylase complexes such as BCoR (BCL-6-interacting corepressor), NCoR (nuclear receptor corepressor), and SMRT (silencing mediator for retinoid and thyroid receptors) via its POZ domain. These interactions resulted in deacetylation of histones Ac-H3 and Ac-H4 at the proximal promoter, which is important in the transcriptional repression of p21. MTT (3-(4,5-di meth yl thi azol-2-yl)-2,5-diphenyltetrazolium bromide) assays and fluorescent-activated cell sorter analysis revealed that ZBTB5 stimulated both cell proliferation and cell cycle progression, significantly increasing the number of cells in S-phase. Overall, our data suggest that ZBTB5 is a potent transcription repressor of cell cycle arrest gene p21 and a potential proto-oncogene stimulating cell proliferation-
dc.description.statementOfResponsibilityopen-
dc.format.extent19856~19866-
dc.relation.isPartOfJOURNAL OF BIOLOGICAL CHEMISTRY-
dc.rightsCC BY-NC-ND 2.0 KR-
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/2.0/kr/-
dc.subject.MESHAnimals-
dc.subject.MESHBinding Sites-
dc.subject.MESHCell Cycle-
dc.subject.MESHCell Line-
dc.subject.MESHCell Line, Tumor-
dc.subject.MESHCell Proliferation-
dc.subject.MESHCercopithecus aethiops-
dc.subject.MESHCyclin-Dependent Kinase Inhibitor p21/genetics*-
dc.subject.MESHGene Expression Regulation*-
dc.subject.MESHHistone Deacetylases/metabolism-
dc.subject.MESHHumans-
dc.subject.MESHKidney/cytology-
dc.subject.MESHKruppel-Like Transcription Factors/analysis*-
dc.subject.MESHKruppel-Like Transcription Factors/chemistry-
dc.subject.MESHKruppel-Like Transcription Factors/genetics*-
dc.subject.MESHKruppel-Like Transcription Factors/metabolism-
dc.subject.MESHMice-
dc.subject.MESHPromoter Regions, Genetic-
dc.subject.MESHProtein Structure, Tertiary-
dc.subject.MESHProto-Oncogene Proteins c-mdm2/genetics-
dc.subject.MESHRetinal Neoplasms/genetics-
dc.subject.MESHRetinoblastoma/genetics-
dc.subject.MESHSp1 Transcription Factor/genetics-
dc.subject.MESHSp1 Transcription Factor/metabolism-
dc.subject.MESHTumor Suppressor Protein p53/genetics-
dc.subject.MESHTumor Suppressor Protein p53/metabolism-
dc.subject.MESHZinc Fingers-
dc.titleA novel POK family transcription factor, ZBTB5, represses transcription of p21CIP1 gene.-
dc.typeArticle-
dc.contributor.collegeCollege of Medicine (의과대학)-
dc.contributor.departmentDept. of Biochemistry & Molecular Biology (생화학,분자생물학)-
dc.contributor.googleauthorDong-In Koh-
dc.contributor.googleauthorWon-Il Choi-
dc.contributor.googleauthorBu-Nam Jeon-
dc.contributor.googleauthorChoong-Eun Lee-
dc.contributor.googleauthorChae-Ok Yun-
dc.contributor.googleauthorMan-Wook Hur-
dc.identifier.doi10.1074/jbc.M109.025817-
dc.admin.authorfalse-
dc.admin.mappingfalse-
dc.contributor.localIdA02614-
dc.contributor.localIdA03517-
dc.contributor.localIdA04126-
dc.contributor.localIdA04350-
dc.relation.journalcodeJ01258-
dc.identifier.eissn1083-351X-
dc.identifier.pmid19491398-
dc.contributor.alternativeNameYun, Chae Ok-
dc.contributor.alternativeNameJeon, Bu Nam-
dc.contributor.alternativeNameChoi, Won Il-
dc.contributor.alternativeNameHur, Man Wook-
dc.contributor.affiliatedAuthorYun, Chae Ok-
dc.contributor.affiliatedAuthorJeon, Bu Nam-
dc.contributor.affiliatedAuthorChoi, Won Il-
dc.contributor.affiliatedAuthorHur, Man Wook-
dc.citation.volume284-
dc.citation.number30-
dc.citation.startPage19856-
dc.citation.endPage19866-
dc.identifier.bibliographicCitationJOURNAL OF BIOLOGICAL CHEMISTRY, Vol.284(30) : 19856-19866, 2009-
dc.identifier.rimsid37858-
dc.type.rimsART-
Appears in Collections:
1. College of Medicine (의과대학) > Research Institute (부설연구소) > 1. Journal Papers
1. College of Medicine (의과대학) > Dept. of Biochemistry and Molecular Biology (생화학-분자생물학교실) > 1. Journal Papers

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