a cationic amino acid copolymer ( cp530 ) with a molar ratio of lysine , leucine , tryptophan and phenylalanine of 11:2:1:1 and a mr of about 2300 was prepared and its inhibitory effects on the complement cascade was compared with those of polylysine with a mr of about 3000 .
C0024337
lysine
C0032518
polylysine