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Information on EC 2.7.1.211 - protein-Npi-phosphohistidine-sucrose phosphotransferase and Organism(s) Salmonella typhimurium and UniProt Accession P08470

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IUBMB 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.
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This record set is specific for:
Salmonella typhimurium
UNIPROT: P08470
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The expected taxonomic range for this enzyme is: Bacteria, Eukaryota
Synonyms
sucrose permease, enzyme iiscr, scrab, sucrose-specific enzyme ii, eiiscr, sucrose-specific transporter, more
SYNONYM
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
EIIScr
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Enzyme IIScr
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scrAB
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sucrose PTS permease
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PATHWAY SOURCE
PATHWAYS
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SYSTEMATIC NAME
IUBMB Comments
protein-Npi-phospho-L-histidine:sucrose Npi-phosphotransferase
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.
UNIPROT
ENTRY NAME
ORGANISM
NO. OF AA
NO. OF TRANSM. HELICES
MOLECULAR WEIGHT[Da]
SOURCE
SEQUENCE
LOCALIZATION PREDICTION?
PTSBC_SALTM
456
0
47865
Swiss-Prot
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