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PEP-dependent dihydroxyacetone kinase, dihydroxyacetone-binding subunit DhaK

UniProtKB accession:  P76015
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Go to UniProtKB:  P76015
UniProtKB description:  Dihydroxyacetone binding subunit of the dihydroxyacetone kinase, which is responsible for the phosphoenolpyruvate (PEP)-dependent phosphorylation of dihydroxyacetone via a phosphoryl group transfer from DhaL-ATP (PubMed:11350937, PubMed:15476397). Binds covalently dihydroxyacetone in hemiaminal linkage (PubMed:15476397). DhaK acts also as corepressor of the transcription activator DhaR by binding to the sensor domain of DhaR (PubMed:24440518). In the presence of dihydroxyacetone, DhaL-ADP displaces DhaK and stimulates DhaR activity (PubMed:24440518). In the absence of dihydroxyacetone, DhaL-ADP is converted by the PTS to DhaL-ATP, which does not bind to DhaR (PubMed:24440518).
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