CBX5 Gene Summary [Human]

This gene encodes a highly conserved nonhistone protein, which is a member of the heterochromatin protein family. The protein is enriched in the heterochromatin and associated with centromeres. The protein has a single N-terminal chromodomain which can bind to histone proteins via methylated lysine residues, and a C-terminal chromo shadow-domain (CSD) which is responsible for the homodimerization and interaction with a number of chromatin-associated nonhistone proteins. The encoded product is involved in the formation of functional kinetochore through interaction with essential kinetochore proteins. The gene has a pseudogene located on chromosome 3. Multiple alternatively spliced variants, encoding the same protein, have been identified. [provided by RefSeq, Jul 2008]

Details

Type
Protein Coding
Official Symbol
CBX5
Official Name
chromobox 5 [Source:HGNC Symbol;Acc:HGNC:1555]
Ensembl ID
ENSG00000094916
Bio databases IDs NCBI: 23468 Ensembl: ENSG00000094916
Aliases chromobox 5, HP1 alpha homolog (Drosophila)
Synonyms 2610029O15Rik, chromobox 5, Chromobox homolog 5, HEL25, Heterochromatin1 alpha, Heterochromatin1 α, Heterochromatin protein 1 alpha, Heterochromatin protein 1 α, HP1, HP1A, HP1alpha, Hp1hs-α, HP1α
Species
Human, Homo sapiens
OrthologiesMouseRat

Protein Domains

A protein domain is a distinct structural or functional region within a protein that can evolve, function, and exist independently of the rest of the protein chain. These domains in human CBX5 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • Chromatin organization modifier domain
  • histone binding
  • transcription regulator
  • dimerization domain
  • protein binding activity, bridging
  • transcription factor binding
  • histone deacetylase binding
  • chromatin binding
  • common docking domain
  • protein binding
  • identical protein binding
  • Chromo shadow domain
  • CHROMO (CHRromatin Organization Modifier) domains and chromo shadow domains
  • binding protein
  • ribonucleoprotein binding
  • hinge domain
  • Chromo (CHRromatin organization MOdifier) domain

Pathways

Biological processes and signaling networks where the CBX5 gene in human plays a role, providing insight into its function and relevance in health or disease.

Top Findings

The most significant associations for this gene, including commonly observed domains, pathway involvement, and functional highlights based on current data.
disease
  • diffuse large B-cell lymphoma
  • male pattern hair loss
  • B-cell non-Hodgkin disease
  • mature B-cell neoplasia
  • organismal death
  • metabolic syndrome X
  • cervical cancer
  • high-grade cervical neoplasia
regulates
role in cell
  • expression in
  • apoptosis
  • function
  • differentiation
  • binding in
  • survival
  • cohesion
  • retention in
  • recruitment in
  • transcription in

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Nucleus
  • nuclear fraction
  • chromatin fraction
  • heterochromatic focus
  • heterochromatin
  • nuclear foci
  • chromosome
  • nucleoplasm
  • nucleoli
  • nuclear bodies
  • nuclear envelope
  • nuclear matrix
  • PML nuclear bodies
  • kinetochores
  • centromeres
  • telomeres
  • chromatin
  • euchromatin compartments
  • pericentric heterochromatin
  • cytosolic fraction

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human CBX5 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • negative regulation of transcription from RNA polymerase II promoter
  • negative regulation of transcription, DNA-dependent
  • heterochromatin assembly
  • response to DNA damage stimulus

Cellular Component

Where in the cell the gene product is active
  • PML body
  • histone methyltransferase complex
  • histone deacetylase complex
  • kinetochore
  • nucleolus
  • centromeric heterochromatin
  • nucleoplasm
  • nuclear envelope
  • heterochromatin
  • nucleus
  • chromosome, telomeric region
  • transcriptional repressor complex
  • chromocenter
  • macromolecular complex

Molecular Function

What the gene product does at the molecular level
  • identical protein binding
  • protein binding
  • histone deacetylase binding
  • methylated histone residue binding
  • ribonucleoprotein complex binding
  • chromatin binding
  • protein binding, bridging

Gene-Specific Assays for Results You Can Trust

Streamline your workflow with assays designed for this gene. Our targeted dPCR and qPCR assays help you generate meaningful data – efficiently and accurately.