title: Isolation and characterization of a tryptophan-resistant mutant of echovirus type 8.
mesh_terms: D000042:Absorption; D000818:Animals; D002460:Cell Line; D002499:Centrifugation, Density Gradient; D003553:Cystine / Q000494:pharmacology; D003588:Cytopathogenic Effect, Viral; D004352:Drug Resistance, Microbial; D029822:Enterovirus B, Human / Q000187:drug effects* / Q000254:growth & development / Q000302:isolation & purification; D000882:Haplorhini; D007668:Kidney; D008251:Macaca; D009154:Mutation; D012367:RNA, Viral / Q000302:isolation & purification / Q000494:pharmacology; D013237:Stereoisomerism; D013696:Temperature; D014364:Tryptophan / Q000494:pharmacology*; D014776:Virus Cultivation; D014779:Virus Replication / Q000187:drug effects
chemical_list: D012367:RNA, Viral; D003553:Cystine; D014364:Tryptophan