BARD1 Gene Summary [Human]

This gene encodes a protein which interacts with the N-terminal region of BRCA1. In addition to its ability to bind BRCA1 in vivo and in vitro, it shares homology with the 2 most conserved regions of BRCA1: the N-terminal RING motif and the C-terminal BRCT domain. The RING motif is a cysteine-rich sequence found in a variety of proteins that regulate cell growth, including the products of tumor suppressor genes and dominant protooncogenes. This protein also contains 3 tandem ankyrin repeats. The BARD1/BRCA1 interaction is disrupted by tumorigenic amino acid substitutions in BRCA1, implying that the formation of a stable complex between these proteins may be an essential aspect of BRCA1 tumor suppression. This protein may be the target of oncogenic mutations in breast or ovarian cancer. Multiple alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2013]

Details

Type
Protein Coding
Official Symbol
BARD1
Official Name
BRCA1 associated RING domain 1 [Source:HGNC Symbol;Acc:HGNC:952]
Ensembl ID
ENSG00000138376
Bio databases IDs NCBI: 580 Ensembl: ENSG00000138376
Aliases BRCA1 associated RING domain 1
Synonyms BRAD1, BRCA1 associated RING domain 1
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 BARD1 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • transcription regulator
  • Ankyrin repeats (many copies)
  • protein binding activity, bridging
  • enzyme
  • Ankyrin repeat
  • Ring finger
  • RING finger (Really Interesting New Gene) domain and U-box domain superfamily
  • BRCA1 C Terminus (BRCT) domain
  • breast cancer carboxy-terminal domain
  • ankyrin repeats
  • zinc-RING finger domain
  • BRCT
  • nuclear export signal
  • BRCA1-binding domain
  • zinc finger of C3HC4-type, RING
  • ubiquitin protein ligase activity
  • BRCT domain, a BRCA1 C-terminus domain
  • alpha helix
  • nuclear localization sequence
  • Ankyrin repeats (3 copies)
  • protein binding
  • RNA binding
  • phosphorylation site
  • ubiquitin-protein transferase activity
  • protein homodimerization
  • protein heterodimerization
  • Zinc finger, C3HC4 type (RING finger)

Pathways

Biological processes and signaling networks where the BARD1 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
  • metastasis
  • colorectal neoplasia
  • epithelial neoplasia
  • epithelial cancer
  • cancer
  • liver neoplasia
  • liver cancer
  • digestive system cancer
  • abdominal cancer
  • neoplasia
regulated by
regulates
role in cell
  • apoptosis
  • survival
  • DNA damage response
  • expression in
  • proliferation
  • accumulation in
  • transmembrane potential
  • growth
  • cell death
  • formation

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
  • mitochondrial fraction
  • mid-section
  • cytoplasmic ribonucleoprotein granule
  • Cytoplasm
  • Mitochondria
  • midbody
  • nuclear foci
  • chromosome
  • nucleoplasm
  • nuclear speckles
  • mitotic spindle
  • replication fork

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the human BARD1 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • DNA repair
  • negative regulation of protein export from nucleus
  • regulation of DNA repair
  • negative regulation of cell cycle
  • positive regulation of protein catabolic process
  • response to DNA damage stimulus
  • regulation of phosphorylation
  • tissue homeostasis
  • negative regulation of apoptotic process
  • positive regulation of apoptotic process
  • cellular response to ionizing radiation
  • regulation of DNA damage checkpoint
  • reciprocal DNA recombination
  • negative regulation of mRNA 3'-end processing
  • regulation of cell cycle
  • protein K6-linked ubiquitination
  • protein ubiquitination

Cellular Component

Where in the cell the gene product is active
  • nucleus
  • nuclear ubiquitin ligase complex
  • ubiquitin ligase complex
  • cytoplasm
  • nuclear speck
  • BRCA1-C complex
  • BRCA1-A complex
  • BRCA1-B complex
  • BRCA1-BARD1 complex
  • nucleoplasm

Molecular Function

What the gene product does at the molecular level
  • ubiquitin-protein ligase activity
  • RNA binding
  • protein binding
  • protein homodimerization activity
  • protein heterodimerization activity
  • metal ion binding
  • kinase binding

Gene-Specific Assays for Results You Can Trust

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