204897

Complement C4b, Human

Complement C4b, Human, is a native, 193 kDa glycoprotein composed of the modified C4 α-chain (α′) and intact β- and γ-chains complement component.

• Code UNSPSC : 12352202
• Nomenclature NACRES : NA.25

Propriétés

• Niveau de qualité: 100
• Pureté: ≥95% (SDS-PAGE)
• Forme: liquid
• Ne contient pas: preservative
• Fabricant/nom de marque: Calbiochem^®
• Conditions de stockage: OK to freeze; avoid repeated freeze/thaw cycles
• Impuretés: IgG, IgA, IgM, Factor B, Factor H, C3, ceruloplasmin, or albumin, trace
• Conditions d'expédition: wet ice
• Température de stockage: −70°C

Description

Actions biochimiques/physiologiques

Complement C4b fragment is formed by the cleavage of the C4 α-chain by activated C1 enzyme. Like C3b, C4b has the transient ability to form a covalent ester bond with a variety of target cell surfaces. Target surface-bound C4b acts as an important non-enzymatic subunit of the classical pathway C3 cleaving enzyme (C4b, C2a). This surface-bound C4b also exhibits opsonic and immune adherence activities which are dependent on the CR1 (CD35) complement receptor found on many inflammatory cells.

ComplementC4b fragment is formed by the cleavage of the C4 α-chain by activated C1enzyme. Like C3b, C4b has the transient ability to form a covalent ester bond with a variety of target cell surfaces. Target surface-bound C4b acts as an important non-enzymatic subunit of the classical pathway C3 cleaving enzyme (C4b, C2a). This surface-bound C4b also exhibits opsonic and immune adherence activities which are dependent on the CR1 (CD35) complement receptor found on many inflammatory cells.

Conditionnement

Please refer to vial label for lot-specific concentration.

Avertissement

Toxicity: Standard Handling (A)

Informations légales

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

Informations sur la sécurité

• Code de la classe de stockage: 12 - Non Combustible Liquids
• Classe de danger pour l'eau (WGK): nwg
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable