CATH Classification

Domain Context

CATH Clusters

Superfamily 3.40.50.2300
Functional Family PEP-dependent phosphotransferase enzyme IV

Enzyme Information

2.7.1.191
Protein-N(pi)-phosphohistidine--D-mannose phosphotransferase.
based on mapping to UniProt P69795
[Protein]-N(pi)-phospho-L-histidine + D-mannose(Side 1) = [protein]-L- histidine + D-mannose 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.
2.7.1.196
Protein-N(pi)-phosphohistidine--N,N'-diacetylchitobiose phosphotransferase.
based on mapping to UniProt P69795
[Protein]-N(pi)-phospho-L-histidine + N,N'-diacetylchitobiose(Side 1) = [protein]-L-histidine + N,N'-diacetylchitobiose 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.
2.7.1.69
Transferred entry: 2.7.1.191, 2.7.1.192, 2.7.1.193, 2.7.1.194, 2.7.1.195, 2.7.1.196, 2.7.1.197, 2.7.1.198, 2.7.1.199, 2.7.1.200, 2.7.1.201, 2.7.1.202, 2.7.1.203, 2.7.1.204, 2.7.1.205, 2.7.1.206, 2.7.1.207 and 2.7.1.208.
based on mapping to UniProt P69795

UniProtKB Entries (1)

P69795
PTQB_ECOLI
Escherichia coli K-12
PTS system N,N'-diacetylchitobiose-specific EIIB component

PDB Structure

PDB 1E2B
External Links
Method SOLUTION NMR
Organism Escherichia
Primary Citation
The NMR side-chain assignments and solution structure of enzyme IIBcellobiose of the phosphoenolpyruvate-dependent phosphotransferase system of Escherichia coli.
Ab, E., Schuurman-Wolters, G., Reizer, J., Saier, M.H., Dijkstra, K., Scheek, R.M., Robillard, G.T.
Protein Sci.