Cd81 Gene Summary [Rat]

The protein encoded by this gene is a member of the transmembrane 4 superfamily, also known as the tetraspanin family. Most of these members are cell-surface proteins that are characterized by the presence of four hydrophobic domains. The proteins mediate signal transduction events that play a role in the regulation of cell development, activation, growth and motility. This encoded protein is a cell surface glycoprotein that is known to complex with integrins. This protein appears to promote muscle cell fusion and support myotube maintenance. Also it may be involved in signal transduction. This gene is localized in the tumor-suppressor gene region and thus it is a candidate gene for malignancies. Two transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2014]

Details

Type
Protein Coding
Official Symbol
Cd81
Official Name
Cd81 molecule [Source:RGD Symbol;Acc:2315]
Ensembl ID
ENSRNOG00000020451
Bio databases IDs NCBI: 25621 Ensembl: ENSRNOG00000020451
Aliases Cd81 molecule
Synonyms CD81 antigen, CD81 molecule, CVID6, S5.7, TAPA1, TSPAN28
Species
Rat, Rattus norvegicus
OrthologiesHumanMouse

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 rat Cd81 often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • MHC class II protein binding
  • tetraspanin_LEL
  • cholesterol binding
  • viral receptor
  • cytoplasmic domain
  • integrin binding
  • transmembrane domain
  • extracellular loop
  • protein binding
  • receptor binding
  • Tetraspanin family

Pathways

Biological processes and signaling networks where the Cd81 gene in rat 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
  • infection
  • proteinuria
  • non-insulin-dependent diabetes mellitus
  • early-onset preeclampsia
  • psoriatic arthritis
  • organismal death
  • lung adenocarcinoma
  • lung adenocarcinoma formation
  • peritoneal endometriosis
  • cutaneous melanoma
regulated by
  • tetradecanoylphorbol acetate
  • Immunoglobulin
  • BCR (complex)
  • lipopolysaccharide
  • LDLR
  • MS4A1
  • butyric acid
  • STAT5B
  • KRAS
  • ethanol
regulates
role in cell
  • activation in
  • phosphorylation in
  • binding in
  • expression in
  • proliferation
  • migration
  • formation in
  • quantity
  • transcription in
  • binding

Subcellular Expression

Locations within the cell where the protein is known or predicted to be active, providing insight into its function and cellular context.
  • Plasma Membrane
  • membrane fraction
  • tetraspanin-enriched microdomain
  • intracellular structures
  • Cytoplasm
  • cell surface
  • cell periphery
  • microvesicles
  • membrane surface
  • cellular membrane
  • focal adhesions
  • vesicles
  • intercellular junctions
  • immunological synapses
  • cytosol
  • apical membrane
  • uropod
  • basolateral membrane
  • basal membrane
  • neurites
  • multivesicular bodies
  • microsomal membrane
  • membrane rafts
  • exosomes
  • podocyte slit diaphragm

Gene Ontology Annotations

Describes the biological processes, cellular components, and molecular functions associated with the rat Cd81 gene, providing context for its role in the cell.

Biological Process

Functions and activities the gene product is involved in
  • viral entry into host cell
  • CD4-positive, alpha beta T cell costimulation
  • positive regulation of T cell activation via T cell receptor contact with antigen bound to MHC molecule on antigen presenting cell
  • positive regulation of MAPK cascade
  • positive regulation of transcription from RNA polymerase II promoter
  • immunological synapse formation
  • positive regulation of B cell receptor signaling pathway
  • humoral immune response mediated by circulating immunoglobulin
  • positive regulation of inflammatory response to antigenic stimulus
  • positive regulation of T cell receptor signaling pathway
  • regulation of protein stability
  • osteoclast fusion
  • myoblast fusion involved in skeletal muscle regeneration
  • positive regulation of protein exit from endoplasmic reticulum
  • positive regulation of B cell proliferation
  • receptor internalization
  • cellular response to low-density lipoprotein particle stimulus
  • positive regulation of CD4-positive, alpha-beta T cell proliferation
  • protein localization in plasma membrane
  • macrophage fusion
  • positive regulation of T-helper 2 cell cytokine production

Cellular Component

Where in the cell the gene product is active
  • basal plasma membrane
  • extracellular vesicular exosome
  • focal adhesion
  • membrane
  • vesicle
  • basolateral plasma membrane
  • tetraspanin-enriched microdomain
  • plasma membrane
  • immunological synapse

Molecular Function

What the gene product does at the molecular level
  • protein binding
  • cholesterol binding
  • viral receptor activity
  • integrin binding
  • MHC class II protein binding
  • MHC class II protein complex binding

Gene-Specific Assays for Results You Can Trust

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