Merck, 204881-500UG, Complement C3a, Human

General description
Native, human C3a complement component. Single chain, 77 amino acid peptide. Activation of either complement pathway can result in formation of C3-cleaving enzyme (C3 convertases) on target surfaces. The C3 convertase enzymes of either complement activation pathway will cleave the C3 α-chain at peptide bond 77, resulting in the production and release of the C3a peptide. C3a, one of the three complement-derived anaphylatoxins, expresses a wide variety of biological activities, which include smooth muscle contraction, platelet and neutrophil activation and aggregation, skin wheal and flare, and immunoregulatory reactions.
Packaging
Please refer to vial label for lot-specific concentration.
Physical form
In PBS, pH 7.2, sterile-filtered through a 0.22 µm filter.
Preparation Note
Following initial thaw, aliquot and freeze (-70°C).
Prepared from serum that has been shown by certified tests to be negative for HBsAg and for antibodies to HIV and HCV.
Other Notes
Hugli, T.E. 1989. Curr. Top. Micro. Immunol. 153, 181.
Hugli, T.E. 1986. Complement 3, 111.
Legal Information
CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany
Disclaimer
Toxicity: Standard Handling (A)