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主营:血浆蛋白
℡ 4000-520-616
℡ 4000-520-616
Haematologic Technologies/Human Antithrombin III - Mouse Antithrombin III - Haematologic Technologies, Inc./MCATIII-5120/MCATIII-5120-100µg
产品编号:MCATIII-5120-100µg
市  场 价:¥1280.00
场      地:美国(厂家直采)
产品分类: 蛋白类>蛋白纯化>透析>
联系QQ:1570468124
电话号码:4000-520-616
邮      箱: info@ebiomall.com
美  元  价:$64.00
品      牌: haemtech
公      司:Haematologic Technologies Inc.
公司分类:
Haematologic Technologies/Human Antithrombin III - Mouse Antithrombin III - Haematologic Technologies, Inc./MCATIII-5120/MCATIII-5120-100µg
商品介绍

Antithrombin III (ATIII) is a single chain glycoprotein with a molecular weight of 58,000. It is a member of the serpin (serine protease inhibitor) super family and is considered to be the most important inhibitor in the coagulation cascade (1,2). ATIII inhibits a wide spectrum of serine proteases including thrombin, factors IXa, Xa and XIa, kallikrein, plasmin, urokinase, C1-esterase, and trypsin. The mechanism of inhibition involves the formation of a stable 1:1 complex between the active site of the protease and the scissile bond (Arg 385-Ser 386) of ATIII. The active site serine of thrombin has been shown to form a covalent intermediate with the P1 amino acid (Arg 385) of ATIII. The rate of inhibition of serine proteases by ATIII is increased to varying degrees by heparin. In the case of being a thrombin inhibitor or factor Xa inhibitor, the interaction with ATIII is enhanced 3 orders of magnitude in the presence of heparin. The interaction between ATIII and heparin involves a unique sequence of sulfated and non-sulfated monosaccharide units on heparin, and critical lysine residues on ATIII. The binding of ATIII to heparinoid structures on vascular endothelium has been demonstrated and shown to enhance the inhibition of factors IXa, Xa, and thrombin.

ATIII may also function in the complement cascade. The binding of ATIII to fluid phase complement attack-complexes in sera has been demonstrated. In addition, the S protein of complement (an inhibitor of the membrane attack-complex) interferes with the ATIII/thrombin interaction.

ATIII is prepared from fresh frozen plasma by heparin-agarose affinity chromatography (3). The purified protein is supplied in 50% (vol/vol) glycerol/H2O and should be stored at -20°C. Purity is determined by SDS-PAGE analysis.

品牌介绍

Haemtech生物制药服务(HBS)是一家领先的,符合cGMP要求的QC测试实验室,专门为生产重组和血浆衍生蛋白疗法的生物制药制造商提供分析服务,重点是那些会影响止血系统的药物。HBS使客户能够满足法规和质量测试要求,从而将其候选药物从开发转向商业化。

对生物制药的需求正在增长,并且该行业正在迅速采用外包策略,以作为满足不断升级的监管要求的一种方式。凭借在止血方面的丰富经验,HBS能够很好地协助开发影响凝血系统的药物产品。


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