204860

Complement C3b, Human

Complement C3b, Human, is a native C3b complement component. It is a glycoprotein composed of the modified C3-α chain (αʹ) (M.W. 105,000) and the intact C3-β chain (M.W. 75,000).

• 동의어(들): C3b, Complement C3
• UNSPSC 코드: 12352202
• NACRES: NA.25

속성

• Quality Level: 100
• 분석: ≥90% (SDS-PAGE)
• 양식: liquid
• 제조업체/상표: Calbiochem^®
• 저장 조건: OK to freeze; avoid repeated freeze/thaw cycles
• 불순물: IgG, IgA, IgM, C5, Factor H, or Factor I, trace
• 배송 상태: wet ice
• 저장 온도: −70°C

설명

일반 설명

Native, human C3b complement component. Cleavage of the C3-α chain at peptide bond 77 by either of the complement C3 convertase enzymes results in production of C3a (M.W. 9083) and C3b (M.W. 180,000) fragments. The C3b fragment is a glycoprotein composed of the modified C3-α chain (α′) (M.W. 105,000) and the intact C3-β chain (M.W. 75,000). Nascent C3b has the transient ability to form a covalent ester bond with a variety of target surfaces. Once bound to target surfaces C3b becomes an essential subunit of both the classical and alternative pathway C5 cleaving enzymes. In addition, surface-bound C3b has opsonic and immune adherence activities which are mediated via binding to CR1 (CD35) complement receptors.

경고

Toxicity: Standard Handling (A)

물리적 형태

In PBS, pH 7.2, filtered through a 0.22 µm filter.

제조 메모

Prepared from serum that has been shown by certified tests to be negative for HBsAg and for antibodies to HIV and HCV.

재구성

Following initial thaw, aliquot and freeze (-70°C).

기타 정보

Wong, W.W. and Fearon, D.T. 1987. Methods Enzymol.150, 579.
Arnout, M.A., et al. 1981. J. Immunol.127, 1348.

법적 정보

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

안전성 정보

• Storage Class Code: 12 - Non Combustible Liquids
• WGK: WGK 1
• Flash Point (°F): Not applicable
• Flash Point (°C): Not applicable