the immunogenicity of three random copolymers of amino acids with l-glutamic acid and l-alanine ( ga ) , l-glutamic acid and l-tyrosine ( gt ) , or l-glutamic acid , l-alanine , and l-tyrosine ( gat ) , administered in complete freund 's adjuvant , was studied in several inbred and random-bred guinea pig strains .
C0002520
amino acids
C0001898
l-alanine