Isolation of a fragment (C3a) of the third component of human complement containing anaphylatoxin and chemotactic activity and description of an anaphylatoxin inactivator of human serum by Viktor A. Bokisch and others

Journal of Experimental Medicine129(5),1109–1130(1969); DOI10.1084/jem.129.5.1109. Abstract: isolated C3a, smooth-muscle response, antibody inhibition and C3b cleavage into C3c/C3d. Full displayed primary byline verifies Viktor A.Bokisch. Historical activity claims remain specific to the reported assays.