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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Harvey sarcoma virus genome contains no extensive sequences unrelated to those of other retroviruses except ras.

The Harvey murine sarcoma virus genome contains two rat-derived sets of genetic information recombined with the Moloney mouse leukemia virus. The rat sequences represent a ras oncogene and a rat VL30 element. The VL30 sequences have several discrete regions of similarity with retroviral sequences which were detected by searching a protein database for similarities with predicted polypeptide sequences from the VL30 regions. On the 5' side, the most similar sequences were those of feline sarcoma viruses; on the 3' side, murine leukemia viruses were the most similar. Some of the regions of similarity could also be detected directly by searching a nucleic acid sequence database with the viral DNA sequences. The most extensive region of similarity was that which corresponded to the endonuclease in the pol gene of a murine leukemia virus. The majority of the rat-derived sequences present in the Harvey sarcoma virus genome can now be attributed exclusively to ras or retrovirus- or retrotransposon-related sequences.[1]


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