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| Content Provider | PubMed Central |
|---|---|
| Author | Sakurai, H. Hiraoka, Y. Fukasawa, T. |
| Abstract | The yeast auxiliary transcription factor GAL11, a candidate for the coactivator, was partially purified from yeast cells, and its function was characterized in a cell-free transcription system. The partially purified GAL11 protein stimulated basal transcription from the CYC1 core promoter by a factor of 4-5 at the step of preinitiation complex formation. GAL11 protein also enhanced transcription activated by general regulatory factor 1, GAL4-AH, or GAL4-VP16 to the same extent as the basal transcription. Therefore, the apparent potentiation of the activators by GAL11 was attributable to the stimulation of basal transcription. The wild-type GAL11 protein (but not a mutant-type protein) produced in bacteria stimulated transcription as effectively as GAL11 from yeast. These results suggest that GAL11 functions as a positive cofactor of basal and activator-induced transcription in a cell-free transcription system. |
| Starting Page | 8382 |
| File Format | |
| ISSN | 10916490 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 18 |
| Volume Number | 90 |
| Language | English |
| Publisher Date | 1993-09-15 |
| Access Restriction | Open |
| Subject Keyword | Research in Higher Education |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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