Abstract:
:The DNA of normal chicken embryos contains sequences related to the avian leukosis-sarcoma viruses. RNA-dependent DNA polymerase of these viruses is encoded by a genetic element known as the pol gene. The nature of the endogenous virus pol gene in chicken cells was investigated by testing its ability to participate in genetic recombination. Rous-associated virus-60-type recombinant viruses isolated after infection of chicken cells with strains tsLA337PR-B or tsNY21SR-A, both of which produce a temperature-sensitive DNA polymerase, also possessed the temperature-sensitive lesion. These results are consistent with the hypothesis that the endogenous viral information used for the generation of Rous-associated virus-60 is deficient in at least part of the pol gene and that the defect includes that portion represented by the lesions in NY21 and LA337. The frequency of polymerase-negative BH-Rous sarcoma virus alpha formation was not affected by the levels of endogenous viral expression, which suggests that the alpha defect is not derived from the endogenous pol gene.
journal_name
J Viroljournal_title
Journal of virologyauthors
Sawyer RC,Rettenmier CW,Hanafusa Hdoi
10.1128/JVI.29.3.856-862.1979subject
Has Abstractpub_date
1979-03-01 00:00:00pages
856-62issue
3eissn
0022-538Xissn
1098-5514journal_volume
29pub_type
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