function:Involved in the presentation of foreign antigens to the immune system.,similarity:Belongs to the MHC class I family.,similarity:Contains 1 Ig-like C1-type (immunoglobulin-like) domain.,subunit:Heterodimer of an alpha chain and a beta chain (beta-2-microglobulin).,tissue specificity:Expression of HLAG seems to be restricted to eye cells and tissue.,
[Isoform 1]: Cell membrane ; Single-pass type I membrane protein . Endoplasmic reticulum membrane . Early endosome membrane .; [Soluble HLA class I histocompatibility antigen, alpha chain G]: Secreted .; [Isoform 2]: Cell membrane ; Single-pass type I membrane protein .; [Isoform 3]: Cell membrane ; Single-pass type I membrane protein .; [Isoform 4]: Cell membrane ; Single-pass type I membrane protein .; [Isoform 5]: Secreted . Early endosome .; [Isoform 6]: Secreted .; [Isoform 7]: Secreted .; Cell projection, filopodium membrane . HLA-G trogocytosis from extravillous trophoblast's filopodia occurs in the majority of decidual NK cells. .
Expressed in adult eye (PubMed:1570318). Expressed in immune cell subsets including monocytes, myeloid and plasmacytoid dendritic cells and regulatory T cells (Tr1)(at protein level) (PubMed:20448110). Secreted by follicular dendritic cell and follicular helper T cells (PubMed:24453251). Isoform 5: Detected in physiological fluids including amniotic fluid and serum (PubMed:11137219). Isoform 7: Expressed in placenta, amniotic membrane, skin cord blood and peripheral blood mononuclear cells (PubMed:11137219).
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