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Human C1 Protein, Natural - 200 µg (CAT#: CB-P284-AB) Datasheet

Product Type
Human complement protein C1 is the first component of the classical complement pathway. When C1q binds to antigen-bound IgM or IgG or C1q directly binds to the surface of the pathogen, the activation of the C1 complex (composed of C1q, C1r and C1s to form C1qr2s2) occurs. The activation of C1r and C1s occurs, thus starting the classical pathway of complement activation. The C1 activation product first cleaves C4 and then cleaves C2 to generate the C4b2a complex, which promotes the cleavage of C3 into C3a and C3b.
Infectious diseases, Nephrology
200 µg
PBS, pH 7.4
Functional studies
Application Notes
For functional studies, the in vitro dilution must be optimized in the user's experimental setting.
Storage Instructions
Product should be stored at -80°C. Repeated freeze and thaw cycles will cause loss of activity. Use C5 protein within 37 hours after thawing and keep on ice. Remainder amounts should be aliquoted and immediately re-freezed for future use. Aliquots should never be thawed more than once. Under recommended storage conditions, product is stable for at least one year.

All products and services are for Research Use Only. Do Not use in humans.


Creative Biolabs has established a team of customer support scientists ready to discuss ADCC/CDC optimization strategies, antibody production, bioinformatics analysis and other molecular biology/biotechnology issues.

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