The Enzyme Database

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EC 2.7.1.192     
Accepted name: protein-Nπ-phosphohistidine—N-acetylmuramate phosphotransferase
Reaction: [protein]-Nπ-phospho-L-histidine + N-acetyl-D-muramate[side 1] = [protein]-L-histidine + N-acetyl-D-muramate 6-phosphate[side 2]
Other name(s): murP (gene name); N-acetylmuramic acid PTS permease; EIINAcMur; Enzyme IINAcMur
Systematic name: protein-Nπ-phospho-L-histidine:N-acetyl-D-muramate Nπ-phosphotransferase
Comments: This enzyme is a component (known as enzyme II) of a phosphoenolpyruvate (PEP)-dependent, sugar transporting phosphotransferase system (PTS). The system, which is found only in prokaryotes, simultaneously transports its substrate from the periplasm or extracellular space into the cytoplasm and phosphorylates it. The phosphate donor, which is shared among the different systems, is a phospho-carrier protein of low molecular mass that has been phosphorylated by EC 2.7.3.9 (phosphoenolpyruvate—protein phosphotransferase). Enzyme II, on the other hand, is specific for a particular substrate, although in some cases alternative substrates can be transported with lower efficiency. The reaction involves a successive transfer of the phosphate group to several amino acids within the enzyme before the final transfer to the substrate.
Links to other databases: BRENDA, EXPASY, Gene, KEGG, MetaCyc, PDB
References:
1.  Dahl, U., Jaeger, T., Nguyen, B.T., Sattler, J.M. and Mayer, C. Identification of a phosphotransferase system of Escherichia coli required for growth on N-acetylmuramic acid. J. Bacteriol. 186 (2004) 2385–2392. [DOI] [PMID: 15060041]
[EC 2.7.1.192 created 1972 as EC 2.7.1.69, part transferred 2016 to EC 2.7.1.192]
 
 


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