High impact information on GND1

• Mutations in the PGI1 and GND1 genes encoding carbon source utilization enzymes confer enhanced invasive growth that is unaffected by glucose but requires active Snf1 [1].
• The pentose phosphate pathway was blocked either by disruption of the GND1 gene, one of the isogenes of 6-phosphogluconate dehydrogenase, or by disruption of the ZWF1 gene, which encodes glucose 6-phosphate dehydrogenase [2].
• This approach was found to enrich the analysis since GND1, ZWF1 and ALD6, encoding the most important enzymes for regeneration of NADPH under anaerobic conditions, were down-regulated together with eight other genes encoding NADP(H)-dependent enzymes [3].
• The gnd1 mutation, responsible for an approximately 80% loss of 6-phosphogluconate dehydrogenase activity and the inability of the cells to grow on delta gl, completely abolished the induction of all three enzymes, while the gnd2 mutation affected this only partially [4].
• In contrast, glucose-positive revertants of gnd1, with restored constitutive dehydrogenase activity, continued to remain deficient in induction of the three enzymes and also failed to grow on delta gl [4].

Associations of GND1 with chemical compounds

• Induction of 6-phosphogluconate dehydrogenase activity was associated with increased transcription of the gene coding for the major isoenzyme; the transcript remained undetectable in the gnd1 mutant [4].

References