Recombinant Human Complement Factor B/CFB is produced with our mammalian expression system in human cells. The target protein is expressed with sequence (Thr26-Leu764) of Human CFB fused with a polyhistidine tag at the C-terminus.
纯度
> 95 % as determined by reducing SDS-PAGE.
过滤
0.2 μm filtered
内毒素水平
Less than 0.1 ng/μg (1 IEU/μg) as determined by LAL test
It is not recommended to reconstitute to a concentration less than 100 μg/mL. Dissolve the lyophilized protein in ddH2O. Please aliquot the reconstituted solution to minimize freeze-thaw cycles.
缓冲液
Supplied as a 0.2 μm filtered solution of 20 mM TrisHCl, 150 mM NaCl, pH 8.0.
注意事项
Always centrifuge tubes before opening. Do not mix by vortex or pipetting.
储存条件
-80 °C
储存方法
Store at < -20°C, stable for 6 months after receipt. Please minimize freeze-thaw cycles.
Complement Factor B (CFB) belongs to the peptidase S1 family of enzymes. It is expressed by hepatocytes and macrophages and localizes to the major histocompatibility complex (MHC) class III region on chromosome 6. CFB which is a component of the alternate pathway of the complement system is cleaved by factor D into 2 fragments: Ba and Bb. Bb. The active subunit Bb is a serine protease which associates with C3b to form the alternative pathway C3 convertase. Bb is involved in the proliferation of preactivated B lymphocytes, while Ba inhibits their proliferation. Alternative Names: Complement Factor B, C3/C5 Convertase, Glycine-Rich Beta Glycoprotein, GBG, PBF2, Properdin Factor B, CFB, BF, BFD