Human ENPP3 / CD203c Protein, His Tag (active enzyme)
分子别名(Synonym)
ENPP3,CD203c,NPP3,E-NPP3,PD-Ibeta,NPPase,PDNP3
表达区间及表达系统(Source)
Human ENPP3, His Tag (EN3-H52H4) is expressed from human 293 cells (HEK293). It contains AA Leu 48 - Ile 875 (Accession # O14638-1).
Predicted N-terminus: His
蛋白结构(Molecular Characterization)

This protein carries a polyhistidine tag at the N-terminus.
The protein has a calculated MW of 96.9 kDa. The protein migrates as 95-130 kDa when calibrated against Star Ribbon Pre-stained Protein Marker under reducing (R) condition (SDS-PAGE) due to glycosylation.
内毒素(Endotoxin)
Less than 1.0 EU per μg by the LAL method / rFC method.
纯度(Purity)
>90% as determined by SDS-PAGE.
制剂(Formulation)
Lyophilized from 0.22 μm filtered solution in 50 mM Tris, 150 mM NaCl, pH8.0 with trehalose as protectant.
Contact us for customized product form or formulation.
重构方法(Reconstitution)
Please see Certificate of Analysis for specific instructions.
For best performance, we strongly recommend you to follow the reconstitution protocol provided in the CoA.
存储(Storage)
For long term storage, the product should be stored at lyophilized state at -20°C or lower.
Please avoid repeated freeze-thaw cycles.
This product is stable after storage at:
-20°C to -70°C for 12 months in lyophilized state;
-70°C for 3 months under sterile conditions after reconstitution.

背景介绍
人类NPP家族包含七个成员,根据其底物偏好性可分为两类。第一类包括核苷酸降解蛋白NPP1、NPP3和NPP4。NPP3(CD203c,ENPP3)在多种器官中表达,包括上皮和黏膜表面,尤其在嗜碱性粒细胞和肥大细胞上显著表达。当抗原结合的IgE激活嗜碱性粒细胞时,会引发炎症介质释放,并促使NPP3快速上调至细胞表面。该蛋白实际上是通过流式细胞术诊断患者嗜碱性粒细胞过敏原敏感性的常用标志物。嗜碱性粒细胞与肥大细胞介导了对特定病原体的免疫应答以及急慢性过敏反应。这些细胞激活后会释放ATP,后者以自分泌方式进一步刺激细胞。NPP3的上调可降解ATP,从而抑制慢性过敏性炎症(但不影响急性反应)。
关键字: ENPP3;ENPP3蛋白;ENPP3重组蛋白;ACRO;百普赛斯;
百普赛斯集团ACROBiosystems Group(股票代码:301080)是成立于2010年的跨国生物科技公司,是为全球生物医药、健康产业领域提供关键生物试剂产品及解决方案的行业平台型基石企业。2021年在创业板上市。百普赛斯集团业务遍布全球,横跨亚洲、北美洲、欧洲,在中国、美国、瑞士等12个城市设有办公室、研发中心及生产基地。目前累计服务客户超6000家,与全球Top 20医药企业均建立了长期、稳定的合作伙伴关系。集团旗下拥有品牌ACROBiosystems百普赛斯、bioSeedin柏思荟、Condense Capital垦拓资本和ACRODiagnostics百斯医学等。