The Journal of Experimental Medicine, Vol 130, 1145-1160,
Copyright © 1969 by The Rockefeller University Press
THE EIGHTH COMPONENT OF HUMAN COMPLEMENT (C8): ISOLATION, CHARACTERIZATION, AND HEMOLYTIC EFFICIENCY
Jorge A. Manni M.D.1 and
Hans J. Müller-Eberhard M.D.1
1 From the Department of Experimental Pathology, Scripps Clinic and Research Foundation, La Jolla, California 92037
A method was described allowing the isolation of the eighth component of complement, C8, from human serum. C8 is an immunochemically definable, heretofore unrecognized serum protein with a molecular weight of approximately 150,000 and an electrophoretic mobility of a
1-globulin. It may be obtained with 5% yield as a 5000-fold purified, physicochemically and immunochemically homogeneous protein. Under optimal experimental conditions, a few molecules of C8 were found sufficient for lysis of a cell
.
Submitted on July 7, 1969