
Killer-cell immunoglobulin-like receptor - Wikipedia
Killer-cell immunoglobulin-like receptors (KIRs), are a family of type I transmembrane glycoproteins expressed on the plasma membrane of natural killer (NK) cells and a minority of T cells.
Frontiers | Killer Ig-Like Receptors (KIRs): Their Role in NK Cell ...
2019年5月27日 · KIR gene family is characterized by an extraordinary high degree of diversity, which arises from variability in KIR gene content, due to differences in both presence/absence (P/A) of KIR genes and KIR gene copy number, and from allelic polymorphism (80–89).
KIR3DL2:杀伤细胞免疫球蛋白样受体(KIR)家族蛋白,T细胞淋 …
2024年2月28日 · 杀伤细胞免疫球蛋白样受体(Killer Cell Immunoglobulin-like Receptors, KIR,即CD158)是一个由14个多态性基因编码的受体家族(KIR2DL1 、 2DL2 、 2DL3 、 2DL4 、2DL5; KIR3DL1 、 3DL2 、 3DL3; KIR2DS1 、 2DS2 、 2DS3 、 2DS4 、 2DS5; KIR3DS1)。 KIR家族的成员被分为两种类型:KIR2D和KIR3D。 KIR的命名基于其胞外区的结构特征(2D vs 3D,代表胞外免疫球蛋白样区域的数目)和胞质尾区的长度(L,长vs S,短) …
NK细胞表面免疫检查点受体KIRs知多少 - 知乎 - 知乎专栏
2023年2月24日 · 杀伤细胞免疫球蛋白样受体 (KIR)家族是一类高度多态性的分子,主要表达在一些NK细胞和T细胞的表面,可分为多个亚型。 可为激活性KIRs (aKIRs)和抑制性KIRs (iKIRs)两类。 抑制性KIRs包含2个 (KIR2DL)或3个 (KIR3DL)胞外Ig结构域,赋予HLA特异性。 抑制性KIRs在恶性肿瘤中表达上调,而激活性KIRs在如乳腺癌等多种肿瘤中表达下调。 这些改变降低了NK细胞的活化和抗癌活性,使肿瘤逃避了免疫监视。 NK细胞的抗肿瘤活性可能是通过单克隆抗体阻 …
浅谈NK细胞受体 KIR的功能与临床意义 - 搜狐
2021年2月2日 · 杀伤细胞免疫球蛋白样受体(KIRs)在记忆性T细胞和NK细胞上表达,是NK细胞功能的关键调节因子。 KIR及其配体MHC-I类(HLA-A、-B、-C)分子具有高度多态性,特殊的相互作用会影响一些疾病的发生率、进展和结果,如妊娠并发症、病毒感染、自身免疫性疾病和血液系统恶性肿瘤。 因此,深入了解KIR-MHC-I类相互作用的分子机制有助于疾病的治疗策略。 NK细胞受体与配体. 根据基因表型与数量,KIRs分为两种单倍型 (haplotype):A和B。 A单倍型包 …
The KIR Gene Cluster - NCBI Bookshelf - National Center for ...
2003年5月28日 · The KIR locus, containing a family of polymorphic and highly homologous genes, maps to chromosome 19q13.4 within the 1 Mb leukocyte receptor complex (LRC). The LRC also encodes the leukocyte Ig-like receptor family (LILR), the leukocyte-associated inhibitory receptor (LAIR) family, and the Fcα receptor.
IPD-KIR Database - EMBL-EBI
Many KIR haplotypes have been defined by family segregation studies (19, 20, 21). Based on their gene content, KIR genotypes can be divided into two broad haplotypes termed A and B. These haplotype groups were originally distinguished using restriction fragment length polymorphism (RFLP), with the presence of a ~24 Kb HindIII fragment ...
The KIR gene family: life in the fast lane of evolution
2004年12月16日 · A hallmark of human NK cells is the expression of HLA class I-specific killer-cell immunoglobulin-like receptors (KIR). An interesting facet of the KIR family is the unusual variability of the respective gene cluster, which is changing …
Revealing complete complex KIR haplotypes phased by long …
2017年6月1日 · We present a unique approach to haplotype the KIR loci using single-molecule, real-time (SMRT) sequencing. Using this method, we have—for the first time—comprehensively sequenced and phased...
KIR Family Research Area: R&D Systems
The KIR family is composed of at least 15 members expressed by natural killer (NK) cells and a subset of T cells in primates only. KIR proteins are named based on the number of extracellular Ig-like domains (KIR2D or KIR3D) and for whether …
- 某些结果已被删除