SGD Paper 
Kumar PR, et al. (2008) NADP regulates the yeast GAL induction system. Science 319(5866):1090-2
Abstract: Transcriptional regulation of the galactose-metabolizing genes in Saccharomyces cerevisiae depends on three core proteins: Gal4p, the transcriptional activator that binds to upstream activating DNA sequences (UAS(GAL)); Gal80p, a repressor that binds to the carboxyl terminus of Gal4p and inhibits transcription; and Gal3p, a cytoplasmic transducer that, upon binding galactose and adenosine 5'-triphosphate, relieves Gal80p repression. The current model of induction relies on Gal3p sequestering Gal80p in the cytoplasm. However, the rapid induction of this system implies that there is a missing factor. Our structure of Gal80p in complex with a peptide from the carboxyl-terminal activation domain of Gal4p reveals the existence of a dinucleotide that mediates the interaction between the two. Biochemical and in vivo experiments suggests that nicotinamide adenine dinucleotide phosphate (NADP) plays a key role in the initial induction event.
| Status: Published | Type: Journal Article | Research Support, N.I.H., Extramural | Research Support, U.S. Gov't, Non-P.H.S. | PubMed ID: 18292341 |
Topics addressed in this paper
Number of different genes curated to this paper: 3
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