these findings suggest that ( a ) the c3b receptor of human erythrocytes in its biologically active state is a macromolecule with an apparent mol . wt higher than 1 x 10 ( 6 ) and ( b ) the protein moiety consists predominantly of non-covalently linked protein molecules with apparent mol wts of 80,000 and 60,000 .
C0086418
human
C1705714
wts