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c1qa

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Official Full Name
complement component 1, q subcomponent, A chain
Background
C1q associates with the proenzymes C1r and C1s to yield C1, the first component of the serum complement system. The collagen-like regions of C1q interact with the Ca(2+)-dependent C1r(2)C1s(2) proenzyme complex, and efficient activation of C1 takes place on interaction of the globular heads of C1q with the Fc regions of IgG or IgM antibody present in immune complexes.
Synonyms
C1QA; complement component 1, q subcomponent, alpha polypeptide; C1q; AI255395; complement C1q subcomponent subunit A; complement component 1, q subcomponent, A chain; complement component C1q, A chain; zgc:109903