Medical Definition of Complement 1q
1.
Subcomponent of complement 1 (c1) which recognises and binds to the heavy chain of IgG or IgM initiating the classical complement pathway. The interaction of c1q and immunoglobulin activates c1r and c1s. The activated c1r and c1s molecules are cleaved off the complex by c1-inhibitor, allowing the collagen-like region of c1q to become accessible for interaction with cell membrane c1q receptors.
Chemical name: Complement C1q
(12 Dec 1998)
Lexicographical Neighbors of Complement 1q
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