人二肽基肽酶4 （Human DPP4）

ProSpec（蛋白质专家）是以色列一家具有超过16年历史的，专业从事细菌来源重组蛋白生产的先进生物技术公司。ProSpec生产多种细胞因子、生长因子、趋化因子、激素、酶、病毒抗原和许多其他重组蛋白。在研究团队和科学家们的努力下，ProSpec已经拥有超过1700种可用于癌症、细胞凋亡、发育、内分泌学、免疫学、神经科学、蛋白酶及干细胞研究用重组蛋白、多肽和抗体。10多年蛋白纯化方面的经验使ProSpec公司生产成本低、产量高、效率高，其蛋白产品不仅纯度高、生物活性高，价格也非常具有优势。同时ProSpec针对客户的需要提供自定义重组蛋白生产服务。 ProSpec向客户提供蛋白质产品、服务和技术授权。因为创新的产品、的客户服务和对细节的注重，ProSpec在科学界建立了良好的信誉，具有广泛的客户群，包括世界各地的学术、政府研究机构，生物技术和制药企业以及医院和基准实验室。

Synonyms	DPP-IV, DPPIV, DPP4, DPP-4, Dipeptidyl Peptidase-IV, Dipeptidyl Peptidase-4, CD26, adenosine deaminase complexing protein 2, Dipeptidylpeptidase-IV, CD-26, ADABP, ADCP2, DPIV, TP103, DP-IV, DP-4, DP4.
Introduction	Group IB secretory phospholipase A2 (sPLA2-IB) mediates cell proliferation, cell migration, hormone release and eicosanoid production via its receptor in peripheral tissues. In the CNS, high-affinity binding sites of sPLA2-IB have been documented. sPLA2-IB induced neuronal cell death in a concentrationdependent manner depending on PGD2 metabolites, especially Delta12-PGJ2 that might mediate sPLA2-IB-induced apoptosis. The secretory PLA2 (sPLA2) family, in which 10 isozymes have been identified, consists of lowmolecular weight, Ca2+-requiring secretory enzymes that have been implicated in a number of biological processes, such as modification of eicosanoid generation, inflammation, and host defense.
Description	Dipeptidyl Peptidase-IV was purified from human placenta cells.
Source	Human Placenta.
Physical Appearance	Filtered lyophilized (freeze-dried) powder.
Formulation	Each 70ng were lyophilized from 29.1?l containing 2mM Tris-HCl, pH 8.0.
Solubility	Add deionized water to prepare a working stock solution of approximately 0.5mg/mL and let the lyophilized pellet dissolve completely. Product is not sterile! Please filter the product by an appropriate sterile filter before using it in the cell culture.
Stability	Store lyophilized protein at -20°C. Aliquot the product after reconstitution to avoid repeated freezing/thawing cycles. Reconstituted protein can be stored at 4°C for a limited period of time; it does not show any change after two weeks at 4°C.
Biological Activity	One unit is defined as the amount of enzyme which will hydrolyze 1μm of H-Gly-Pro-pNA per 1min at 25°C, pH 7.8.
Specific Activity	13U/mg.
Purity	Greater than 95% as determined by SDS-PAGE.
Specifications	The protein was prepared from tissue shown to be non-reactive for HBsAg, anti-HCV, anti-HBc, and negative for anti-HIV 1and 2by FDA required tests. This product is intended for research useonly.
Usage	ProSpec's products are furnished for LABORATORY RESEARCH USE ONLY. The product may not be used as drugs, agricultural or pesticidal products, food additives or household chemicals.
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