M. Grauslund et B. Ronnow, Carbon source-dependent transcriptional regulation of the mitochondrial glycerol-3-phosphate dehydrogenase gene, GUT2, from Saccharomyces cerevisiae, CAN J MICRO, 46(12), 2000, pp. 1096-1100
Cytosolic glycerol kinase (Gut1p) and mitochondrial glycerol-3-phosphate de
hydrogenase (Gut2p) constitute the glycerol utilization pathway in Saccharo
myces cerevisiae. Transcriptional analysis of the GUT2 gene showed that it
was repressed by glucose and derepressed on the non-fermentable carbon sour
ces, glycerol, lactate and ethanol. Derepression of GUT2 requires the prote
in kinase Snf1p as well as the heteromeric protein complex, Hap2/3/4/5, and
its putative DNA-binding site (UAS(HAP)) located in the promoter region. F
urthermore, glucose repression of GUT2 requires the negative regulator, Opi
1p.