title: Yin-yang 1 activates the c-myc promoter.
abstract: Previous studies on the murine c-myc promoter demonstrated that a ubiquitously present protein, common factor 1 (CF1), bound at two sites located -260 and -390 bp from the P1 transcription start site. CF1 has been purified to near homogeneity and shown to be identical to the zinc finger protein Yin-yang 1 (YY1) as judged by similarity of molecular weight and other biochemical properties, immunological cross-reactivity, and the ability of recombinant YY1 to bind to CF1 sites. In cotransfection experiments, YY1 is a strong activator of transcription from c-myc promoter-based reporters. Furthermore, in murine erythroleukemia cells, overexpressed YY1 causes increased levels of c-myc mRNA initiated from both major transcription initiation sites of the endogenous c-myc gene.
authors.affiliation: Department of Biological Chemistry, University of California, Los Angeles 90024.
authors.forename: K J
authors.initials: KJ
authors.lastname: Riggs
authors.forename: S
authors.initials: S
authors.lastname: Saleque
authors.forename: K K
authors.initials: KK
authors.lastname: Wong
authors.forename: K T
authors.initials: KT
authors.lastname: Merrell
authors.forename: J S
authors.initials: JS
authors.lastname: Lee
authors.forename: Y
authors.initials: Y
authors.lastname: Shi
authors.forename: K
authors.initials: K
authors.lastname: Calame
mesh_terms: D016475:3T3 Cells; D000818:Animals; D001483:Base Sequence; D001665:Binding Sites / Q000235:genetics; D004247:DNA / Q000235:genetics; D004268:DNA-Binding Proteins / Q000096:biosynthesis / Q000235:genetics* / Q000302:isolation & purification; D050981:Erythroid-Specific DNA-Binding Factors; D005786:Gene Expression Regulation; D016259:Genes, myc; D006801:Humans; D051379:Mice; D008969:Molecular Sequence Data; D008970:Molecular Weight; D015345:Oligonucleotide Probes; D011401:Promoter Regions, Genetic; D012333:RNA, Messenger / Q000235:genetics / Q000378:metabolism; D015534:Trans-Activators / Q000235:genetics; D014157:Transcription Factors / Q000096:biosynthesis / Q000235:genetics* / Q000302:isolation & purification; D014158:Transcription, Genetic; D015533:Transcriptional Activation; D014162:Transfection; D050986:YY1 Transcription Factor; D016335:Zinc Fingers / Q000235:genetics*
chemical_list: D004268:DNA-Binding Proteins; D050981:Erythroid-Specific DNA-Binding Factors; D015345:Oligonucleotide Probes; D012333:RNA, Messenger; D015534:Trans-Activators; D014157:Transcription Factors; D050986:YY1 Transcription Factor; C494698:YY1 protein, human; C494699:Yy1 protein, mouse; D004247:DNA