海科生物技术公司/补体因子B,人,天然|海科生物技术公司/HC2129
商品编号:
HC2129
品牌:
hycultbiotech
市场价:
¥7380.00
美元价:
4428.00
联系Q Q:
3392242852
电话号码:
4000-520-616
电子邮箱:
info@ebiomall.com
商品介绍
Factor B is an acute-phase protein. Levels of factor B increase during inflammation. Complement factor B is a single- chain molecule of 764 amino acids (MW of 90 kD), including a leader peptide of 25 amino acids. Factor B provides the catalytic subunit of the C3/C5 convertases of the alternative complement pathway. Assembly of the C3 convertase (C3bBb) requires binding of factor B to C3b (C3.H2O) and factor D-mediated cleavage of bound factor B resulting in the release of Ba (MW 33 kD). The C3 convertase is stabilized by the binding of properdin. This provides a positive amplification loop for the classical and alternative complement pathways. Bb (MW 60 kD) is the serine protease element of this convertase. After cleavage of C3, the C5 convertase ((C3b)2Bb) is formed. The Bb fragment may be regarded as a better indicator of the alternative pathway of complement activation than Ba as impaired renal filtration does directly influence Ba levels. Whereas Bb is elevated 2.2-fold in chronic renal failure (CRF) patients, plasma concentrations of Ba are 8.4-fold higher in CRF and 16-fold higher in end-stage renal disease (ESRD) patients compared to normals. In addition to complement activation, factor B fragments participate in other immunological functions.
品牌介绍
荷兰HyCult Biotechnology(HBT)位于荷兰乌登,从1994开始制造检测抗体和蛋白质,主要侧重与病理学诊断有关的全套产品研发,既有纯化的重组蛋白和多肽,也有单抗和多抗,是世界一流的先天免疫领域的研究试剂制造商。
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