Recombinant Human Siglec-2 / CD22 Protein, CF (HEK293)

目录号:C0455

打印

Recombinant Human Siglec-2 / CD22 Protein, CF (HEK293) is expressed from HEK293 cells with an His tag at the C-terminus.

生物描述

Accession
P20273-1
背景
B 细胞受体 CD22,也称为唾液酸结合免疫球蛋白样凝集素 2(Siglec‑2)、B 淋巴细胞黏附分子(BL‑CAM)、T 细胞表面抗原 Leu‑14,属于免疫球蛋白超家族及 SIGLEC(唾液酸结合免疫球蛋白样凝集素)家族。CD22 介导 B 细胞‑B 细胞间相互作用,可能参与 B 细胞在淋巴组织中的定位。Siglec‑2(CD22)可结合唾液酸化糖蛋白,CD45 即为其配体之一。CD22 一方面可通过与 Src 家族酪氨酸激酶互作发挥正向调控作用;另一方面也可作为抑制性受体,通过招募胞内磷酸酶(依靠磷酸酶的 SH2 结构域),对信号分子去磷酸化,从而阻断信号转导。

使用信息

物种
Human
来源
HEK293-drived Human Siglec-2 / CD22 Protein AA Asp 20 - Arg 687.
预测分子量
77.0 kDa
实际分子量
90-116 kDa, reducing conditions
纯度
>95% as determined by Bis-Tris PAGE.
内毒素
< 0.1 EU/ug by the LAL method
制剂
Lyophilized from 0.22μm filtered solution in PBS (pH 7.4). Normally 8% trehalose is added as protectant before lyophilization.
复溶方法
开盖前先10,000-12,000 rpm 离心 30 s;向冻干粉中加入无菌PBS,用枪头轻轻吹打混匀,重悬浓度不低于 100 μg/mL;复溶之后分装放-80℃保存,避免反复冻融,如要长期储存,建议添加保护剂(如0.1% BSA、5% HSA、10% FBS等)
储存条件 (自收到货起)
For long-term storage, keep the product lyophilized at -20°C or below. Please avoid repeated freeze-thaw cycles. Stability:​ Lyophilized: 12 months (-20°C to -80°C) Reconstituted: 3 months at -80°C under sterile conditions.

Data

Quality Inspection Chart of Recombinant Human Siglec-2 / CD22 Protein, CF (HEK293)

Recombinant Siglec-2 / CD22 Protein, CF (HEK293)on SDS-PAGE under reducing (R) and non-reducing (NR) conditions. The gel was stained with Coomassie Blue. The purity of the protein is greater than 95%.