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.
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Protein Aliases: b2 microglobulin; DADB-15K14.8; HLA class I histocompatibility antigen, alpha chain G; HLA class I molecule; HLA G antigen; HLA-G histocompatibility antigen, class I, G; MHC class I antigen G; sHLA-G; Soluble HLA class I histocompatibility antigen, alpha chain G
Gene Aliases: HLA-6.0; HLA-G; HLAG; MHC-G
UniProt ID: (Human) P17693
Entrez Gene ID: (Human) 3135
Molecular Function: major histocompatibility complex protein