인간C5

인간C5 C화학적 특성, 용도, 생산

용도

Complement C5 is part of the terminal sequence in the complement pathway. In particular, it is cleaved into C5a and C5b which are responsible for chemotaxis, inflammation, and initiating the formation of the membrane attack complex (MAC). Drugs that inhibit complement C5 have been used in Paroxysmal nocturnal hemoglobinuria (PNH) patients to lessen thrombotic complications by lessening intravascular hemolysis.

일반 설명

Native, human C5 complement component. Glycoprotein composed of two non-identical subunits of M.W. 120 kDa (α) and 75 kDa (β) linked by disulfide bonds. Present in normal human serum at 70 μg/ml. Activation of complement via either the classical or alternative pathway can result in the assembly of C5-cleaving enzymes (C5 convertases) on target surfaces. Both C5 convertases cleave the C5 α-chain at peptide bond 74 resulting in production of C5a (M.W. 11,200) and C5b fragments (M.W. 185,000). Released C5a peptide is one of the three complement-derived anaphylatoxins. C5b fragment combines with C6, C7, C8, and C9 to form lytic C5b-9 complement membrane attack complex (MAC).

Biochem/physiol Actions

Complement component C5 is processed by convertase enzymes in a cascade modulated in a unique way. The multi-subunit catalytic complex initially shows little activity against C5, but instead cleaves C3. A C3 cleavage product C3b covalently attaches to the complex and shifts its specificity to C5 by a factor of 1000.

인간C5 준비 용품 및 원자재

원자재

준비 용품

인간C5 공급 업체

공급자	전화	이메일	국가	제품 수	이점
Aladdin Scientific	+1-+1(833)-552-7181	sales@aladdinsci.com	United States	52927	58
Sigma-Aldrich	021-61415566 800-8193336	orderCN@merckgroup.com	China	51471	80
AntibodySystem	17762345272 18162686757	biolab-reagents@atagenix.com	China	9818	58
ACROBiosystems	18514007688	jiaxin.zhao@acrobiosystems.com	China	986	58

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