
Keywords: A549; lung cancer cells; 7-ACA; 7-aminocephalosporanic acid; 7-ADCA; 7-aminodesacetoksycephalosporanic acid; 6-APA; 6-aminopenicillanic acid; Asn; asparagine; Asp; aspartic acid; 4B16; murine melanoma cells; BE7404; liver cancer cells; BJAB; Burkitt's lym