| Autor: |
R R, Yocum, S, Hanley, R, West, M, Ptashne |
| Rok vydání: |
1984 |
| Předmět: |
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| Zdroj: |
Molecular and Cellular Biology. 4:1985-1998 |
| ISSN: |
1098-5549 |
| DOI: |
10.1128/mcb.4.10.1985-1998.1984 |
| Popis: |
We present the DNA sequence of a 914-base pair fragment from Saccharomyces cerevisiae that contains the GAL1-GAL10 divergent promoter, 140 base pairs of GAL10 coding sequence, and 87 base pairs of GAL1 coding sequence. From this fragment, we constructed four pairs of GAL1-lacZ and GAL10-lacZ fusions on various types of yeast plasmid vectors. On each type of vector, the fused genes were induced by galactose and repressed by glucose. The response of a GAL1-lacZ fusion to gal4 and gal80 regulatory mutations was similar to the response of intact chromosomal GAL1 and GAL10 genes. A set of deletions that removed various portions of the GAL10 regulatory sequences from a GAL10-CYC1-lacZ fusion was constructed in vitro. These deletions defined a relatively guanine-cytosine-rich region of 45 base pairs that contained sequences necessary for full-strength galactose induction and an adjacent guanine-cytosine rich 55 base pairs that contained sequences sufficient for weak induction. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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