Abstract
Infection of chicken embryo fibroblasts by Rous sarcoma virus induces a variety of alterations in cellular growth and morphology. We have used two-dimensional polyacrylamide gel electrophoresis to examine the effects of viral transformation on the synthesis and phosphorylation of cellular polypeptides. Infection by Rous sarcoma virus does not appear to induce the de novo synthesis, or the complete suppression, of any of the [35S]methionine-labeled cellular polypeptides that can be resolved with this technique; however, there are quantitative changes in a minor fraction (approximately 4%) of the [35S]methionine-labeled polypeptides. When cells labeled with [32P]orthophosphate were examined, a phosphorylated polypeptide, M(r) 36,000, was detected in transformed cells; this polypeptide appears within 20 min when cells infected by a temperature-sensitive mutant of Rous sarcoma virus are shifted from the nonpermissive to the permissive temperature. Phosphorylation of the 36,ooo M(r) polypeptide thus represents an early event in the process of transformation, and it is possible that this polypeptide is a target for the kinase activity associated with pp60(src).
| Original language | English (US) |
|---|---|
| Pages (from-to) | 5212-5216 |
| Number of pages | 5 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Volume | 76 |
| Issue number | 10 |
| State | Published - 1979 |
Fingerprint
ASJC Scopus subject areas
- General
- Genetics
Cite this
Transformation by Rous sarcoma virus : Effects of src gene expression on the synthesis and phosphorlyation of cellular polypeptides. / Radke, K.; Martin, G. S.
In: Proceedings of the National Academy of Sciences of the United States of America, Vol. 76, No. 10, 1979, p. 5212-5216.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Transformation by Rous sarcoma virus
T2 - Effects of src gene expression on the synthesis and phosphorlyation of cellular polypeptides
AU - Radke, K.
AU - Martin, G. S.
PY - 1979
Y1 - 1979
N2 - Infection of chicken embryo fibroblasts by Rous sarcoma virus induces a variety of alterations in cellular growth and morphology. We have used two-dimensional polyacrylamide gel electrophoresis to examine the effects of viral transformation on the synthesis and phosphorylation of cellular polypeptides. Infection by Rous sarcoma virus does not appear to induce the de novo synthesis, or the complete suppression, of any of the [35S]methionine-labeled cellular polypeptides that can be resolved with this technique; however, there are quantitative changes in a minor fraction (approximately 4%) of the [35S]methionine-labeled polypeptides. When cells labeled with [32P]orthophosphate were examined, a phosphorylated polypeptide, M(r) 36,000, was detected in transformed cells; this polypeptide appears within 20 min when cells infected by a temperature-sensitive mutant of Rous sarcoma virus are shifted from the nonpermissive to the permissive temperature. Phosphorylation of the 36,ooo M(r) polypeptide thus represents an early event in the process of transformation, and it is possible that this polypeptide is a target for the kinase activity associated with pp60(src).
AB - Infection of chicken embryo fibroblasts by Rous sarcoma virus induces a variety of alterations in cellular growth and morphology. We have used two-dimensional polyacrylamide gel electrophoresis to examine the effects of viral transformation on the synthesis and phosphorylation of cellular polypeptides. Infection by Rous sarcoma virus does not appear to induce the de novo synthesis, or the complete suppression, of any of the [35S]methionine-labeled cellular polypeptides that can be resolved with this technique; however, there are quantitative changes in a minor fraction (approximately 4%) of the [35S]methionine-labeled polypeptides. When cells labeled with [32P]orthophosphate were examined, a phosphorylated polypeptide, M(r) 36,000, was detected in transformed cells; this polypeptide appears within 20 min when cells infected by a temperature-sensitive mutant of Rous sarcoma virus are shifted from the nonpermissive to the permissive temperature. Phosphorylation of the 36,ooo M(r) polypeptide thus represents an early event in the process of transformation, and it is possible that this polypeptide is a target for the kinase activity associated with pp60(src).
UR - http://www.scopus.com/inward/record.url?scp=0018673506&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0018673506&partnerID=8YFLogxK
M3 - Article
VL - 76
SP - 5212
EP - 5216
JO - Proceedings of the National Academy of Sciences of the United States of America
JF - Proceedings of the National Academy of Sciences of the United States of America
SN - 0027-8424
IS - 10
ER -