IL-2R gamma (CD132) 是 IL-2 的一种受体,是 I 型细胞因子受体家族和 5 型亚家族的成员。IL-2R gamma 在白细胞亚群和人类单核细胞中表达[1][3]。人 IL-2R γ 由胞外结构域 (L23-A262)、螺旋结构域 (V263-L283) 和胞质结构域 (E284-T369) 组成。
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商品编号: GX004894 库存: 100支
上市时间: 2024-11-18 16:27:43 浏览次数: 570次
研究方向
IL-2R gamma (CD132) 是 IL-2 的一种受体,是 I 型细胞因子受体家族和 5 型亚家族的成员。IL-2R gamma 在白细胞亚群和人类单核细胞中表达。人 IL-2R γ 由胞外结构域 (L23-A262)、螺旋结构域 (V263-L283) 和胞质结构域 (E284-T369) 组成。
不同物种的IL-2Rβ的氨基酸序列不同。人 IL-2R gamma 与小鼠和大鼠的氨基酸序列同一性<75%。
IL-2R γ 对 IL-2 的亲和力较低,但与 IL-2R β 形成异二聚体时,对 IL-2 具有中等亲和力。当 IL-2 浓度相对较高时,IL-2R β/γ 异二聚体复合物会转导信号[1]。IL-2Rγ可被IL-2、IL-4、IL-7、IL-9、IL-15受体利用,参与淋巴细胞及其他细胞的发育、活化、增殖、分化和调节。类型。IL-2R gamma 受到 IL-2 和 IFN gamma的严格上调。L-2R gamm 突变会导致人类 X 连锁严重联合免疫缺陷 (XSCID)。
IL-2R gamma 参与炎症反应,并介导细胞活化。
Measured by its ability to inhibit the IL-2-dependent proliferation of MO7e human megakaryocytic leukemic cells.The ED50 for this effect is typically 0.6-3.6µg/mL in the presence of 30µg/mL of soluble IL-2 R beta and 10ng/mL of recombinant human IL-2.
The gamma chain of the high affinity functional human IL-2 receptor complex belongs to the hematopoietin receptor family. The common gamma chain (γc) (or CD132), also known as interleukin-2 receptor subunit gamma or IL2RG, is a member of the type I cytokine receptor family expressed on most lymphocyte (white blood cell) populations, and its gene is found on the X-chromosome of mammals. IL2RG is a 369 amino acid residue protein consisting of a 22 residue signal sequence, a 232 residue extracellular domain, a 29 residue transmembrane domain and an 86 residue cytoplasmic domain. IL2RG is a cytokine receptor sub-unit that is common to the receptor complexes for at least six different interleukin receptors: IL-2, IL-4, IL-7, IL-9, IL-15 and interleukin-21 receptor. It has been proposed that IL2RG be designated the common gamma chain ( gammac). The site of molecular defects in X-linked SCID (severe combined immunodeficiency) has now been mapped to the IL-2 R gamma gene.