Homo sapiens Protein: CBX7
Summary
InnateDB Protein IDBP-8074.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol CBX7
Protein Name chromobox homolog 7
Synonyms
Species Homo sapiens
Ensembl Protein ENSP00000216133
InnateDB Gene IDBG-8072 (CBX7)
Protein Structure
UniProt Annotation
Function Component of a Polycomb group (PcG) multiprotein PRC1- like complex, a complex class required to maintain the transcriptionally repressive state of many genes, including Hox genes, throughout development. PcG PRC1 complex acts via chromatin remodeling and modification of histones; it mediates monoubiquitination of histone H2A 'Lys-119', rendering chromatin heritably changed in its expressibility. Promotes histone H3 trimethylation at 'Lys-9' (H3K9me3). Binds to trimethylated lysine residues in histones, and possibly also other proteins. Regulator of cellular lifespan by maintaining the repression of CDKN2A, but not by inducing telomerase activity. {ECO:0000269PubMed:19636380, ECO:0000269PubMed:21047797, ECO:0000269PubMed:21060834, ECO:0000269PubMed:21282530}.
Subcellular Localization Nucleus {ECO:0000269PubMed:14647293, ECO:0000269PubMed:21060834, ECO:0000269PubMed:21282530}.
Disease Associations
Tissue Specificity
Comments
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 47 experimentally validated interaction(s) in this database.
They are also associated with 6 interaction(s) predicted by orthology.
Experimentally validated
Total 47 [view]
Protein-Protein 47 [view]
Protein-DNA 0
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Predicted by orthology
Total 6 [view]
Gene Ontology

Molecular Function
Accession GO Term
GO:0003682 chromatin binding
GO:0003727 single-stranded RNA binding
GO:0005515 protein binding
GO:0035064 methylated histone binding
Biological Process
GO:0000122 negative regulation of transcription from RNA polymerase II promoter
GO:0006351 transcription, DNA-templated
GO:0016568 chromatin modification
GO:0048733 sebaceous gland development
Cellular Component
GO:0000790 nuclear chromatin
GO:0000792 heterochromatin
GO:0005634 nucleus
GO:0005737 cytoplasm
GO:0031519 PcG protein complex
GO:0035102 PRC1 complex
Protein Structure and Domains
PDB ID
InterPro IPR000953 Chromo domain/shadow
IPR016197 Chromo domain-like
IPR017984 Chromo domain subgroup
IPR023780 Chromo domain
PFAM PF00385
PRINTS PR00504
PIRSF
SMART SM00298
TIGRFAMs
Post-translational Modifications
Modification
Cross-References
SwissProt O95931
PhosphoSite PhosphoSite-O95931
TrEMBL A0A024R1Q2
UniProt Splice Variant
Entrez Gene 23492
UniGene Hs.681020
RefSeq NP_783640
HUGO HGNC:1557
OMIM 608457
CCDS CCDS13986
HPRD 12234
IMGT
EMBL AL031846 BC051773 CH471095
GenPept AAH51773 CAB36555 EAW60298 EAW60299 EAW60300 EAW60301