title: Independent, spontaneous mutants of adenovirus type 2-simian virus 40 hybrid Ad2+ND3 that grow efficiently in monkey cells possess indentical mutations in the adenovirus type 2 DNA-binding protein gene.
abstract: Four independent, spontaneous mutants of the adenovirus type 2-simian virus 40 hybrid Ad2+ND3 that allow efficient growth in monkey cells were isolated previously (C. W. Anderson, Virology 111:263-269, 1981). All four mutations have been mapped within the coding sequence for the adenovirus DNA-binding protein by marker rescue analysis. DNA sequence analysis of a region of ca. 1,000 base pairs shown by marker rescue to contain the host range mutations demonstrated that the host range mutant hr602 differs from its parent, Ad2+ND3, at only a single nucleotide. Mutant hr602 has a thymine in place of a cytosine at the first position of the 130th codon, as measured from the initiation site for the DNA-binding protein. This change results in the replacement of a histidine by a tyrosine in mutant hr602 DNA-binding protein. Each of the other three Ad2+ND3 host range mutants have exactly the same nucleotide alteration as does hr602. This same nucleotide change was recently reported for a similarly derived host range mutant of adenovirus 5.
mesh_terms: D000260:Adenoviruses, Human / Q000235:genetics* / Q000502:physiology; D000818:Animals; D001483:Base Sequence; D002460:Cell Line; D002522:Chlorocebus aethiops; D004265:DNA Helicases / Q000235:genetics*; D004279:DNA, Viral; D004268:DNA-Binding Proteins; D005814:Genes, Viral; D005819:Genetic Markers; D009154:Mutation; D011995:Recombination, Genetic; D013539:Simian virus 40 / Q000235:genetics* / Q000502:physiology; D014764:Viral Proteins / Q000235:genetics*
chemical_list: D004279:DNA, Viral; D004268:DNA-Binding Proteins; D005819:Genetic Markers; D014764:Viral Proteins; D004265:DNA Helicases