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| Content Provider | PubMed Central |
|---|---|
| Author | Shalloway, D. Coussens, P. M. Yaciuk, P. |
| Abstract | NIH 3T3 mouse cells were transfected with plasmids that induce efficient expression of either (i) the Rous sarcoma virus v-src gene, (ii) the chicken c-src gene, or (iii) a recombinant gene combining the 5' portion of c-src with the 3' end of v-src. Focus formation in tissue culture and formation of large colonies in soft agar did not occur in cells transfected with c-src. Cells transfected with c-src expression plasmids did not form foci but were isolated using a coselectable biological marker. They display morphological and substrate-independent growth characteristics intermediate between those of normal and v-src-transformed mouse cells, and lysates from these cells have enhanced in vitro tyrosine kinase activity. Transfection with the c-src-v-src recombinant induced focus formation with an efficiency similar to that obtained with a v-src expression plasmid. These results imply that v-src-induced transformation does not result just from overexpression of an essentially normal cellular protein but, at least in part, depends on the mutations distinguishing the cellular and viral proteins. |
| Starting Page | 7071 |
| File Format | |
| ISSN | 10916490 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 22 |
| Volume Number | 81 |
| Language | English |
| Publisher Date | 1984-11-01 |
| Access Restriction | Open |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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