半岛bd体育手机客户端 介绍
基因名：
KIR2DS3 半岛bd体育手机客户端 别名： NKAT7； KIR2DS3； killer cell immunoglobulin like receptor, two Ig domains and short cytoplasmic tail 3； killer cell immunoglobulin like receptor, two Ig domains and short cytoplasmic tail 3； killer cell immunoglobulin-like receptor 2DS3； MHC class I NK cell receptor； NKAT-7； killer cell immunoglobulin-like receptor, two domains, short cytoplasmic tail, 3； natural killer cell inhibitory receptor； natural killer-associated transcript 7； NK细胞抑制性受体2DS3； 背景信息：
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]
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