Aliases for LILRB1 Gene
External Ids for LILRB1 Gene
Previous GeneCards Identifiers for LILRB1 Gene
This gene is a member of the leukocyte immunoglobulin-like receptor (LIR) family, which is found in a gene cluster at chromosomal region 19q13.4. The encoded protein belongs to the subfamily B class of LIR receptors which contain two or four extracellular immunoglobulin domains, a transmembrane domain, and two to four cytoplasmic immunoreceptor tyrosine-based inhibitory motifs (ITIMs). The receptor is expressed on immune cells where it binds to MHC class I molecules on antigen-presenting cells and transduces a negative signal that inhibits stimulation of an immune response. It is thought to control inflammatory responses and cytotoxicity to help focus the immune response and limit autoreactivity. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]
GeneCards Summary for LILRB1 Gene
LILRB1 (Leukocyte Immunoglobulin-Like Receptor, Subfamily B (With TM And ITIM Domains), Member 1) is a Protein Coding gene. Among its related pathways are Immune System and Immunoregulatory interactions between a Lymphoid and a non-Lymphoid cell. GO annotations related to this gene include protein homodimerization activity and protein phosphatase 1 binding. An important paralog of this gene is KIR2DL4.
UniProtKB/Swiss-Prot for LILRB1 Gene
Receptor for class I MHC antigens. Recognizes a broad spectrum of HLA-A, HLA-B, HLA-C and HLA-G alleles. 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 the signal triggered by FCER1A and inhibits serotonin release. Inhibits FCGR1A-mediated phosphorylation of cellular proteins and mobilization of intracellular calcium ions.