CD158a antigens

CD158a antigens general information

CD158a Gene ID 3802
CD158a Official Full Name killer cell immunoglobulin like receptor, two Ig domains and long cytoplasmic tail 1
CD158a Alias p58.1, KIR2DL1
CD158a Cellular Expression T; NK
CD158a Ligand/Receptor/Association HLA-Cw2, Cw4, Cw5, Cw6
CD158a Function Inhibits the activity of NK cells
CD158a Summary Killer cell immunoglobulin-like receptors (KIRs) are transmembrane glycoproteins expressed by natural killer cells and subsets of T cells. The KIR genes are polymorphic and highly homologous and they are found in a cluster on chromosome 19q13.4 within the 1 Mb leukocyte receptor complex (LRC). The gene content of the KIR gene cluster varies among haplotypes, although several "framework" genes are found in all haplotypes (KIR3DL3, KIR3DP1, KIR3DL4, KIR3DL2). The KIR proteins are classified by the number of extracellular immunoglobulin domains (2D or 3D) and by whether they have a long (L) or short (S) cytoplasmic domain. KIR proteins with the long cytoplasmic domain transduce inhibitory signals upon ligand binding via an immune tyrosine-based inhibitory motif (ITIM), while KIR proteins with the short cytoplasmic domain lack the ITIM motif and instead associate with the TYRO protein tyrosine kinase binding protein to transduce activating signals. The ligands for several KIR proteins are subsets of HLA class I molecules; thus, KIR proteins are thought to play an important role in regulation of the immune response. [provided by RefSeq, Jul 2008]

Information from NCBI or Wiki

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