Phosphotransferase Activity in Clostridium acetobutylicum from Acidogenic and Solventogenic Phases of Growth
- PMID: 16347058
- PMCID: PMC239020
- DOI: 10.1128/aem.51.5.1121-1123.1986
Phosphotransferase Activity in Clostridium acetobutylicum from Acidogenic and Solventogenic Phases of Growth
Abstract
Clostridium acetobutylicum cells, when energized with fructose, transported and phosphorylated the glucose analog 2-deoxyglucose by a phosphoenolpyruvate-dependent phosphotransferase (PT) system. Butanol up to 2% did not inhibit PT activity, although its chaotropic effect on the cell membrane caused cellular phosphoenolpyruvate and the 2-deoxyglucose-6-phosphate to leak out. Cells harvested from the solventogenic phase of batch growth had a significantly lower PT activity than did cells from the acidogenic phase.
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