The role of phosphorylation of HPr, a phosphocarrier protein of the phosphotransferase system, in the regulation of carbon metabolism in gram‐positive bacteria
- 1 January 1993
- journal article
- research article
- Published by Wiley in Journal of Cellular Biochemistry
- Vol. 51 (1), 19-24
- https://doi.org/10.1002/jcb.240510105
Abstract
HPr of the Gram‐positive bacterial phosphotransferase system (PTS) can be phosphorylated by an ATP‐dependent protein kinase on a serine residue or by PEP‐dependent Enzyme I on a histidyl residue. Both phosphorylation events appear to influence the metabolism of non‐PTS carbon sources. Catabolite repression of the gluconate (gnt) operon of B. subtilis appears to be regulated by the former phosphorylation event, while glycerol kinase appears to be regulated by the latter phosphorylation reaction. The extent of our understanding of these processes will be described.Keywords
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