Homo sapiens Protein: CBX2
Summary
InnateDB Protein IDBP-71186.6
Last Modified 2014-10-13 [Report errors or provide feedback]
Gene Symbol CBX2
Protein Name chromobox homolog 2
Synonyms
Species Homo sapiens
Ensembl Protein ENSP00000308750
InnateDB Gene IDBG-71184 (CBX2)
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. Involved in sexual development, acting as activator of NR5A1 expression. {ECO:0000269PubMed:19361780, ECO:0000269PubMed:21282530}.
Subcellular Localization Nucleus {ECO:0000269PubMed:21282530}.
Disease Associations 46,XY sex reversal 5 (SRXY5) [MIM:613080]: A disorder of sex development. Affected individuals have a 46,XY karyotype but present as phenotypically normal females. {ECO:0000269PubMed:19361780}. Note=The disease is caused by mutations affecting the gene represented in this entry.
Tissue Specificity
Comments
Interactions
Number of Interactions This gene and/or its encoded proteins are associated with 51 experimentally validated interaction(s) in this database.
They are also associated with 11 interaction(s) predicted by orthology.
Experimentally validated
Total 51 [view]
Protein-Protein 51 [view]
Protein-DNA 0
Protein-RNA 0
DNA-DNA 0
RNA-RNA 0
DNA-RNA 0
Predicted by orthology
Total 11 [view]
Gene Ontology

Molecular Function
Accession GO Term
GO:0003677 DNA binding
GO:0003682 chromatin 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:0030154 cell differentiation
GO:0045137 development of primary sexual characteristics
Cellular Component
GO:0000791 euchromatin
GO:0000792 heterochromatin
GO:0005634 nucleus
GO:0005654 nucleoplasm
GO:0031519 PcG protein complex
GO:0035102 PRC1 complex
Protein Structure and Domains
PDB ID
InterPro IPR000953 Chromo domain/shadow
IPR016197 Chromo domain-like
IPR023780 Chromo domain
PFAM PF00385
PRINTS
PIRSF
SMART SM00298
TIGRFAMs
Post-translational Modifications
Modification
Cross-References
SwissProt Q14781
PhosphoSite PhosphoSite-Q14781
TrEMBL
UniProt Splice Variant
Entrez Gene 84733
UniGene Hs.368410
RefSeq NP_005180
HUGO HGNC:1552
OMIM 602770
CCDS CCDS32757
HPRD 14397
IMGT
EMBL AC105337 BC004252 BC119759 BC119760 X77824
GenPept AAH04252 AAI19760 AAI19761 CAA54839