FUNCTION: Receptor for class I MHC antigens. Recognizes a broad spectrum of HLA-A, HLA-B, HLA-C, HLA-G and HLA-F alleles (PubMed:16455647, PubMed:28636952). Receptor for H301/UL18, a human cytomegalovirus class I MHC homolog. Ligand binding results in inhibitory signals and down-regulation of the im...
FUNCTION: Receptor for class I MHC antigens. Recognizes a broad spectrum of HLA-A, HLA-B, HLA-C, HLA-G and HLA-F alleles (PubMed:16455647, PubMed:28636952). Receptor for H301/UL18, a human cytomegalovirus class I MHC homolog. Ligand binding results in inhibitory signals and down-regulation of the immune response. Engagement of LILRB1 present on natural killer cells or T-cells by class I MHC molecules protects the target cells from lysis. Interaction with HLA-B or HLA-E leads to inhibition of FCER1A signaling and serotonin release. Inhibits FCGR1A-mediated phosphorylation of cellular proteins and mobilization of intracellular calcium ions (PubMed:11907092, PubMed:9285411, PubMed:9842885). Recognizes HLA-G in complex with B2M/beta-2 microglobulin and a nonamer self-peptide (PubMed:16455647). Upon interaction with peptide-bound HLA-G-B2M complex, triggers secretion of growth-promoting factors by decidual NK cells (PubMed:29262349, PubMed:19304799). Reprograms B cells toward an immune suppressive phenotype (PubMed:24453251). {ECO:0000269|PubMed:11907092, ECO:0000269|PubMed:16455647, ECO:0000269|PubMed:19304799, ECO:0000269|PubMed:24453251, ECO:0000269|PubMed:28636952, ECO:0000269|PubMed:29262349, ECO:0000269|PubMed:9285411, ECO:0000269|PubMed:9842885}.
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GO - Biological processes (BP):
adaptive immune response [GO:0002250]; cellular response to lipopolysaccharide [GO:0071222]; cytokine-mediated signaling pathway [GO:0019221]; defense response to virus [GO:0051607]; dendritic cell differentiation [GO:0097028]; Fc receptor mediated inhibitory signaling pathway [GO:0002774]; immune r...
adaptive immune response [GO:0002250]; cellular response to lipopolysaccharide [GO:0071222]; cytokine-mediated signaling pathway [GO:0019221]; defense response to virus [GO:0051607]; dendritic cell differentiation [GO:0097028]; Fc receptor mediated inhibitory signaling pathway [GO:0002774]; immune response-inhibiting cell surface receptor signaling pathway [GO:0002767]; negative regulation of alpha-beta T cell activation [GO:0046636]; negative regulation of calcium ion transport [GO:0051926]; negative regulation of CD8-positive, alpha-beta T cell activation [GO:2001186]; negative regulation of cell cycle [GO:0045786]; negative regulation of cytokine production involved in immune response [GO:0002719]; negative regulation of dendritic cell apoptotic process [GO:2000669]; negative regulation of dendritic cell differentiation [GO:2001199]; negative regulation of endocytosis [GO:0045806]; negative regulation of interferon-beta production [GO:0032688]; negative regulation of interferon-gamma production [GO:0032689]; negative regulation of interleukin-10 production [GO:0032693]; negative regulation of interleukin-12 production [GO:0032695]; negative regulation of mononuclear cell proliferation [GO:0032945]; negative regulation of natural killer cell mediated cytotoxicity [GO:0045953]; negative regulation of osteoclast development [GO:2001205]; negative regulation of serotonin secretion [GO:0014063]; negative regulation of T cell activation via T cell receptor contact with antigen bound to MHC molecule on antigen presenting cell [GO:2001189]; negative regulation of T cell mediated cytotoxicity [GO:0001915]; negative regulation of T cell proliferation [GO:0042130]; negative regulation of transforming growth factor beta production [GO:0071635]; negative regulation of tumor necrosis factor production [GO:0032720]; positive regulation of apoptotic process [GO:0043065]; positive regulation of defense response to virus by host [GO:0002230]; positive regulation of gamma-delta T cell activation involved in immune response [GO:2001193]; positive regulation of gene expression [GO:0010628]; positive regulation of interferon-gamma production [GO:0032729]; positive regulation of macrophage cytokine production [GO:0060907]; positive regulation of transcription by RNA polymerase II [GO:0045944]; receptor internalization [GO:0031623]; response to virus [GO:0009615]; signal transduction [GO:0007165]; T cell proliferation involved in immune response [GO:0002309]
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GO - Molecular function (MF):
HLA-A specific inhibitory MHC class I receptor activity [GO:0030107]; HLA-B specific inhibitory MHC class I receptor activity [GO:0030109]; inhibitory MHC class I receptor activity [GO:0032396]; MHC class Ib protein binding [GO:0023029]; MHC class Ib protein complex binding [GO:0023025]; MHC class I...
HLA-A specific inhibitory MHC class I receptor activity [GO:0030107]; HLA-B specific inhibitory MHC class I receptor activity [GO:0030109]; inhibitory MHC class I receptor activity [GO:0032396]; MHC class Ib protein binding [GO:0023029]; MHC class Ib protein complex binding [GO:0023025]; MHC class Ib receptor activity [GO:0032394]; MHC class I protein binding [GO:0042288]; MHC class I receptor activity [GO:0032393]; protein homodimerization activity [GO:0042803]; protein phosphatase 1 binding [GO:0008157]; SH2 domain binding [GO:0042169]
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GO - Cellular component (CC):
cytoplasm [GO:0005737]; external side of plasma membrane [GO:0009897]; extracellular region [GO:0005576]; integral component of membrane [GO:0016021]; plasma membrane [GO:0005886]...
cytoplasm [GO:0005737]; external side of plasma membrane [GO:0009897]; extracellular region [GO:0005576]; integral component of membrane [GO:0016021]; plasma membrane [GO:0005886]
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