CATH Classification

Domain Context

CATH Clusters

Superfamily Glucose permease domain IIB
Functional Family PTS system glucose-specific IIBC component PtsG

Enzyme Information

2.7.1.199
Protein-N(pi)-phosphohistidine--D-glucose phosphotransferase.
based on mapping to UniProt P69786
[Protein]-N(pi)-phospho-L-histidine + D-glucose(Side 1) = [protein]-L- histidine + D-glucose 6-phosphate(Side 2).
-!- 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. -!- 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. -!- Formerly EC 2.7.1.69.

UniProtKB Entries (1)

P69786
PTGCB_ECOLI
Escherichia coli K-12
PTS system glucose-specific EIICB component

PDB Structure

PDB 3BP8
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
Analyses of Mlc-IIBGlc interaction and a plausible molecular mechanism of Mlc inactivation by membrane sequestration
Nam, T.W., Jung, H.I., An, Y.J., Park, Y.H., Lee, S.H., Seok, Y.J., Cha, S.S.
Proc.Natl.Acad.Sci.Usa
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