Definitions of C4

  1. The second component to react in the complement sequence. It is a beta- globulin with a sedimentation coefficient of 18. 7, a molecular weight of 240, 000 and a serum concentration of 430 micrograms/ ml. It is activated by COMPLEMENT 1 and serves as a receptor for C2.

Usage examples for C4

  1. " To make sure," he said, " C4 go back and drop this in the place you found the paper." – The Lost House by Richard Harding Davis