Complement Factor B/CFB Protein, Mouse (His)

CFB is an important component of the alternative pathway of the complement system and is cleaved by factor D, producing two fragments: Ba and Bb. The Bb fragment is characterized as a serine protease and subsequently forms a complex with complement factor 3b, ultimately producing a C3 or C5 convertase. Complement Factor B/CFB Protein, Mouse (His) is the recombinant mouse-derived CFB protein, expressed by E. coli , with N-6*His labeled tag. The total length of Complement Factor B/CFB Protein, Mouse (His) is 739 a.a., with molecular weight of ~87 kDa.

CFB, or complement factor B, is an integral component of the alternate pathway within the complement system. The protein undergoes cleavage by factor D, resulting in the formation of two distinct fragments: Ba and Bb. Of particular significance, Bb functions as a serine protease and subsequently associates with complement factor 3b. This complex formation gives rise to the C3 or C5 convertase, a pivotal enzyme involved in the activation of the complement cascade. The described molecular events underscore the central role of CFB in the intricate regulatory mechanisms of the complement system, shedding light on its contribution to immune responses.

Mouse

E. coli

N-6*His

P04186 (T23-L761)

14962  [NCBI]

TPVLEARPQVSCSLEGVEIKGGSFQLLQGGQALEYLCPSGFYPYPVQTRTCRSTGSWSDLQTRDQKIVQKAECRAIRCPRPQDFENGEFWPRSPFYNLSDQISFQCYDGYVLRGSANRTCQENGRWDGQTAICDDGAGYCPNPGIPIGTRKVGSQYRLEDIVTYHCSRGLVLRGSQKRKCQEGGSWSGTEPSCQDSFMYDSPQEVAEAFLSSLTETIEGADAEDGHSPGEQQKRKIVLDPSGSMNIYLVLDGSDSIGSSNFTGAKRCLTNLIEKVASYGVRPRYGLLTYATVPKVLVRVSDERSSDADWVTEKLNQISYEDHKLKSGTNTKRALQAVYSMMSWAGDAPPEGWNRTRHVIIIMTDGLHNMGGNPVTVIQDIRALLDIGRDPKNPREDYLDVYVFGVGPLVDSVNINALASKKDNEHHVFKVKDMEDLENVFYQMIDETKSLSLCGMVWEHKKGNDYHKQPWQAKISVTRPLKGHETCMGAVVSEYFVLTAAHCFMVDDQKHSIKVSVGGQRRDLEIEEVLFHPKYNINGKKAEGIPEFYDYDVALVKLKNKLKYGQTLRPICLPCTEGTTRALRLPQTATCKQHKEQLLPVKDVKALFVSEQGKSLTRKEVYIKNGDKKASCERDATKAQGYEKVKDASEVVTPRFLCTGGVDPYADPNTCKGDSGGPLIVHKRSRFIQVGVISWGVVDVCRDQRRQQLVPSYARDFHINLFQVLPWLKDKLKDEDLGFL

Approximately 87 kDa

Greater than 90% as determined by reducing SDS-PAGE.

Lyophilized powder.

Lyophilized from a 0.2 μm solution of 10 mM Tris-HCl, 1 mM EDTA, 6% Trehalose, pH 8.0.

<1 EU/μg, determined by LAL method.

It is not recommended to reconstitute to a concentration less than 100 μg/mL in ddH₂O.

Stored at -20°C for 2 years. After reconstitution, it is stable at 4°C for 1 week or -20°C for longer (with carrier protein). It is recommended to freeze aliquots at -20°C or -80°C for extended storage.

Room temperature in continental US; may vary elsewhere.