Abstract
RNA-dependent DNA polymerase activity was found in peparations of a mutant of Newcastle disease virus. The enzyme activity was not found in wild-type virus preparations.
MeSH terms
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Animals
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Centrifugation, Density Gradient
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Chick Embryo
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Culture Techniques
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DNA, Viral / analysis
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DNA, Viral / biosynthesis
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Hemagglutination Tests
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Immunodiffusion
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L Cells / microbiology*
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Mice
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Mutation*
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Newcastle disease virus / analysis
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Newcastle disease virus / enzymology*
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Newcastle disease virus / growth & development
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Newcastle disease virus / immunology
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Newcastle disease virus / isolation & purification
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Nucleic Acid Hybridization
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RNA, Viral / analysis
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RNA-Directed DNA Polymerase / metabolism*
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Thymine Nucleotides / metabolism
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Tritium
Substances
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DNA, Viral
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RNA, Viral
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Thymine Nucleotides
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Tritium
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RNA-Directed DNA Polymerase