HLA-G Gene Summary [Human]

HLA-G belongs to the HLA class I heavy chain paralogues. This class I molecule is a heterodimer consisting of a heavy chain and a light chain (beta-2 microglobulin). The heavy chain is anchored in the membrane. HLA-G is expressed on fetal derived placental cells. The heavy chain is approximately 45 kDa and its gene contains 8 exons. Exon one encodes the leader peptide, exons 2 and 3 encode the alpha1 and alpha2 domain, which both bind the peptide, exon 4 encodes the alpha3 domain, exon 5 encodes the transmembrane region, and exon 6 encodes the cytoplasmic tail. [provided by RefSeq, Jul 2008]

Details

Type
Protein Coding
Official Symbol
HLA-G
Official Name
major histocompatibility complex, class I, G [Source:HGNC Symbol;Acc:HGNC:4964]
Ensembl ID
ENSG00000204632
Bio databases IDs NCBI: 3135 Ensembl: ENSG00000204632
Aliases major histocompatibility complex, class I, G, b2 microglobulin
Synonyms HLA CLASS I, alpha-CHAIN G, HLA CLASS I, α-CHAIN G, major histocompatibility complex, class I, G, MHC-G
Species
Human, Homo sapiens

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 HLA-G often fold into stable, three-dimensional structures and are associated with specific biological functions, such as binding to DNA, other proteins, or small molecules.
  • extracellular domain
  • Immunoglobulin C1-set domain
  • Class I Histocompatibility antigen, domains alpha 1 and 2
  • CD8 receptor binding
  • immunoglobulin domain
  • protein homodimerization
  • protein binding
  • receptor binding
  • identical protein binding
  • peptide antigen binding

Pathways

Biological processes and signaling networks where the HLA-G 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
  • neoplasia
  • soft tissue sarcoma cancer
  • hypothyroidism
  • alveolar soft part sarcoma
  • androgenic alopecia
  • breast cancer
  • threatened abortion
  • cervical carcinoma
  • epithelial uterine cancer
  • cervical cancer
regulated by
regulates
role in cell
  • differentiation
  • expression in
  • G2/M phase
  • proliferation
  • apoptosis
  • migration
  • inhibition
  • survival
  • loss
  • accumulation 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.
  • Plasma Membrane
  • Cytoplasm
  • cell surface
  • intracellular space
  • membrane surface
  • cellular membrane
  • vesicles
  • Golgi membrane
  • endosomal membrane
  • early endosomes
  • exosomes
  • phagosomes

Gene Ontology Annotations

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

Biological Process

Functions and activities the gene product is involved in
  • negative regulation of angiogenesis
  • antigen processing and presentation of endogenous peptide antigen via MHC class I via ER pathway, TAP-independent
  • positive regulation of regulatory T cell differentiation
  • positive regulation of macrophage cytokine production
  • immune response
  • positive regulation of cellular senescence
  • positive regulation of endothelial cell apoptotic process
  • negative regulation of immune response
  • protein homotrimerization
  • peripheral B cell tolerance induction
  • negative regulation of natural killer cell mediated cytotoxicity
  • antigen processing and presentation of endogenous peptide antigen via MHC class Ib
  • cellular defense response
  • positive regulation of T cell tolerance induction
  • positive regulation of interleukin-12 production
  • protection from natural killer cell mediated cytotoxicity
  • positive regulation of tolerance induction
  • immune response-inhibiting cell surface receptor signaling pathway
  • negative regulation of T cell proliferation
  • positive regulation of natural killer cell cytokine production
  • negative regulation of T cell mediated cytotoxicity
  • positive regulation of T cell mediated cytotoxicity
  • negative regulation of dendritic cell differentiation
  • negative regulation of G0 to G1 transition
  • negative regulation of protein kinase B signaling cascade

Cellular Component

Where in the cell the gene product is active
  • external side of plasma membrane
  • Golgi membrane
  • plasma membrane
  • MHC class I protein complex
  • early endosome membrane
  • filopodium membrane
  • early endosome
  • extracellular space
  • ER to Golgi transport vesicle membrane
  • membrane
  • phagocytic vesicle membrane
  • recycling endosome membrane
  • cis-Golgi network membrane

Molecular Function

What the gene product does at the molecular level
  • identical protein binding
  • protein binding
  • peptide antigen binding
  • protein homodimerization activity
  • receptor binding
  • CD8 receptor binding

Gene-Specific Assays for Results You Can Trust

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