Results 101 to 110 of about 10,313 (149)

Enhancement and inhibition of avian sarcoma viruses by polycations and polyanions

Virology, 1969
Abstract Polycations enhance the infectivity of avian sarcoma viruses for chick embryo fibroblast cultures up to 80-fold. The enhancement is restricted to members of avian tumor virus subgroups B, C, and D and to RSV(O). Subgroup A viruses are either unaffected or inhibited by polycations.
Peter K Vogt, Kumao Toyoshima, K Toyoshima   +2 more
exaly   +3 more sources

Uninfected avian cells contain RNA related to the transforming gene of avian sarcoma viruses

Cell, 1978
Abstract A single gene ( src ) is responsible for neoplastic transformation induced by infection of fibroblasts with avian sarcoma viruses. We have reported previously that the DNAs of uninfected avian cells contain nucleotide sequences related to src , and that these sequences (denoted sarc ) have been highly conserved during the evolution of birds
Deborah Spector, Pamela Ann Mccombe, J Michael Bishop   +2 more
exaly   +4 more sources

Temperature sensitive mutants of avian sarcoma viruses

Biochimica Et Biophysica Acta: Reviews on Cancer, 1975
J A Wyke, John A Wyke
exaly   +3 more sources

Avian sarcoma viruses

Virus Research, 1988
Twelve independent isolates of avian sarcoma viruses (ASVs) can be divided into four groups according to the transforming genes harbored in the viral genomes. The first group is represented by viruses containing the transforming sequence, src, inserted in the viral genome as an independent gene; the other three groups of viruses contain transforming ...
L H, Wang, H, Hanafusa
openaire   +2 more sources

Alterations in the genomes of avian sarcoma viruses

Virology, 1982
We describe 12 nonconditional mutants of avian sarcoma virus. Eleven were replication defective and one appeared to retain wild-type functions. Comparison of restriction endonuclease digests of viral DNA revealed that 8 of 11 replication defectives contained large deletions of viral information.
Mason, W S, Linial, M, Hsu, T W, Eisenman, R N, Townsend, J, Mark, G E, Seal, G, Aldrich, C, Taylor, J M   +8 more
openaire   +3 more sources

Characteristics of cores of avian leuko-sarcoma viruses

Virology, 1970
Abstract Rous sarcoma virus-Rous associated virus (RSV-RAV 1 ) mixtures were treated to remove lipoprotein envelopes, and the resulting virion cores were analyzed. Cores labeled with uridine- 3 H had a density (1.27 g/ml) different from intact virus (1.16 g/ml) and could be separated by isopycnic banding in potassium tartrate, cesium sulfate, or ...
J P, Bader, N R, Brown, A V, Bader
openaire   +2 more sources

Vectors derived from avian leukosis and sarcoma viruses

Journal of Molecular Medicine, 1995
International ...
Flamant, Frederic, François-Loïc, Cosset, Samarut, Jacques   +2 more
openaire   +3 more sources

Chemical crosslinking of proteins in avian sarcoma and leukemia viruses

Virology, 1980
Abstract We have investigated the nearest neighbor relationships of proteins in avian sarcoma and leukemia viruses by means of bifunctional crosslinking agents. In intact virions dimethyl suberimidate and dithiobispropionimidate induce the formation of covalently linked multimeric species of all four internal structural proteins ( gag proteins).
R B, Pepinsky, D, Cappiello, C, Wilkowski, V M, Vogt   +3 more
openaire   +2 more sources

Avian sarcoma viruses, protein kinases and cell transformation

Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 1983
Abstract The first RNA tumour virus to be isolated and identified as such was the Rous sarcoma virus (RSV), which causes the transformation of cells in culture as well as fibrosarcomas when injected into suitable host animals (for reviews see Hanafusa (1977) and Bishop (1978)).
R L, Erikson, T M, Gilmer, E, Erikson, J G, Foulkes   +3 more
openaire   +2 more sources

Polyethylene glycol-mediated infection with avian sarcoma viruses

Archives of Virology, 1978
In this communication we report that fusion of viral and cellular membranes by polyethylene glycol is a convenient approach to overcoming genetically determined resistance to infection. Using this method, avian sarcoma virus-transformed mammalian cells have been produced which serve as useful model systems for the study of Rous sarcoma virus-specific ...
W, Rohde, G, Pauli, J, Henning, R R, Friis   +3 more
openaire   +2 more sources