lmmol · Proteins

Transcriptional repressor protein YY1

UniProt P25490 Organism Homo sapiens Gene INO80S, YY1

Also known as: INO80S, YY1

Function

Multifunctional transcription factor that exhibits positive and negative control on a large number of cellular and viral genes by binding to sites overlapping the transcription start site. Binds to the consensus sequence 5'-CCGCCATNTT-3'; some genes have been shown to contain a longer binding motif allowing enhanced binding; the initial CG dinucleotide can be methylated greatly reducing the binding affinity. The effect on transcription regulation is depending upon the context in which it binds and diverse mechanisms of action include direct activation or repression, indirect activation or repression via cofactor recruitment, or activation or repression by disruption of binding sites or conformational DNA changes. Its activity is regulated by transcription factors and cytoplasmic proteins that have been shown to abrogate or completely inhibit YY1-mediated activation or repression. For example, it acts as a repressor in absence of adenovirus E1A protein but as an activator in its presence. Acts synergistically with the SMAD1 and SMAD4 in bone morphogenetic protein (BMP)-mediated cardiac-specific gene expression. Binds to SMAD binding elements (SBEs) (5'-GTCT/AGAC-3') within BMP response element (BMPRE) of cardiac activating regions. May play an important role in development and differentiation. Proposed to recruit the PRC2/EED-EZH2 complex to target genes that are transcriptional repressed. Involved in DNA repair. In vitro, binds to DNA recombination intermediate structures (Holliday junctions). Plays a role in regulating enhancer activation. Recruits the PR-DUB complex to specific gene-regulatory regions.

Classification

Family (Pfam)
PF00096 zf-C2H2
InterPro
YY1-like, Znf_C2H2_sf, Znf_C2H2_type
Functional cluster
RNA-Polymerase II Transcription Factors

Experimental structures · PDB · 3

A predicted model is available from AlphaFold.

Gene Ontology · 54

Disease associations

Neighborhood · nearest proteins

INO80SUcrbpYY2lolaKIAA1617YAF2INO80
Nearest neighbours of Transcriptional repressor protein YY1: 3 by sequence/function similarity (left); 3 co-cited in the literature (right).

Related proteins · sequence + function similarity

Co-cited proteins · studied together in the literature

Literature · 36 cited papers

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