CD25/白介素2-受体抗体

编号：XY- 0577R

The interleukin 2 (IL2) receptor alpha (IL2RA) and beta (IL2RB) chains, together with the common gamma chain (IL2RG), constitute the high-affinity IL2 receptor. Homodimeric alpha chains (IL2RA) result in low-affinity receptor, while homodimeric beta (IL2RB) chains produce a medium-affinity receptor. Normally an integral-membrane protein, soluble IL2RA has been isolated and determined to result from extracellular proteolyisis. Alternately-spliced IL2RA mRNAs have been isolated, but the significance of each is presently unknown. Mutations in this gene are associated with interleukin 2 receptor alpha deficiency.[provided by RefSeq, Nov 2009].
Function : Receptor for interleukin-2.
Subunit : Non-covalent dimer of an alpha and a beta subunit. IL2R exists in 3 different forms: a high affinity dimer, an intermediate affinity monomer (beta subunit), and a low affinity monomer (alpha subunit). The high and intermediate affinity forms also associate with a gamma subunit.
Subcellular Location : Membrane; Single-pass type I membrane protein.
Similarity : Contains 2 Sushi (CCP/SCR) domains.

CD25抗原是分子量为55KD的单链糖蛋白，故又称白介素2受体。主要用于与淋巴样肿瘤、自身免疫性疾病及同种异体移植排斥反应等疾病的研究。CD25是白介素受体的α亚单位，主要表达于活化的T细胞，在活化的B细胞、NK细胞和巨噬细胞也有一定量的表达。该抗体主要用于标记活化的淋巴细胞。