The COOH-terminal fragment of COMPLEMENT 2, released by the action of activated COMPLEMENT C1S. It is a SERINE PROTEASE. C2a combines with COMPLEMENT C4B to form C4b2a (CLASSICAL PATHWAY C3 CONVERTASE) and subsequent C4b2a3b (CLASSICAL PATHWAY C5 CONVERTASE).
Also Known As:
C2a Complement; Complement 2a; Complement C2 Fragment a; Complement C2a Fragment; C2a Fragment, Complement; C2a, Complement; Complement, C2a
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Bio-Agent Context: Research Results