title: Variable defectiveness for lytic growth of the dl 54/59 mutants of simian virus 40.
abstract: When viral growth in TC-7 cells is compared with that in the simian virus 40 (SV40) transformed CV-1 line C6 some mutants of SV40 deleted between 0.54 and 0.59 on the standard map (dl 54/59 mutants) give relative bursts similar to those of wild-type strain 776, whereas others grow markedly poorer in the untransformed cell. In general, viruses which are defective by this criterion have been found to produce neither a fragmentary small-t protein nor a mature small-t mRNA.
mesh_terms: D000818:Animals; D002460:Cell Line; D002472:Cell Transformation, Viral; D003673:Defective Viruses / Q000254:growth & development*; D009154:Mutation; D012333:RNA, Messenger / Q000096:biosynthesis; D012367:RNA, Viral; D013539:Simian virus 40 / Q000235:genetics / Q000254:growth & development* / Q000378:metabolism; D014764:Viral Proteins / Q000096:biosynthesis
chemical_list: D012333:RNA, Messenger; D012367:RNA, Viral; D014764:Viral Proteins