Literature summary extracted from
Midelfort, C.F.; Rose, I.A.
Studies on the mechanism of Escherichia coli glucosamine-6-phosphate isomerase (1977), Biochemistry, 16, 1590-1596.
Inhibitors
EC Number |
Inhibitors |
Comment |
Organism |
Structure |
---|
3.5.99.6 |
2-deoxy-2-amino-D-glucitol 6-phosphate |
- |
Escherichia coli |
|
KM Value [mM]
EC Number |
KM Value [mM] |
KM Value Maximum [mM] |
Substrate |
Comment |
Organism |
Structure |
---|
3.5.99.6 |
0.4 |
- |
D-glucosamine 6-phosphate |
pH 7.8, 25°C |
Escherichia coli |
|
Organism
EC Number |
Organism |
UniProt |
Comment |
Textmining |
---|
3.5.99.6 |
Escherichia coli |
- |
- |
- |
Purification (Commentary)
EC Number |
Purification (Comment) |
Organism |
---|
3.5.99.6 |
- |
Escherichia coli |
Reaction
EC Number |
Reaction |
Comment |
Organism |
Reaction ID |
---|
3.5.99.6 |
alpha-D-glucosamine 6-phosphate + H2O = D-fructose 6-phosphate + NH3 |
reaction mechanism involves a ring-opening step, followed by an enolization step that proceeds through a cis-enolamine and its tautomeric imine as reaction intermediates |
Escherichia coli |
|
Storage Stability
EC Number |
Storage Stability |
Organism |
---|
3.5.99.6 |
0-5°C, in liquid N2, little loss of activity after 2-5 months |
Escherichia coli |
Substrates and Products (Substrate)
EC Number |
Substrates |
Comment Substrates |
Organism |
Products |
Comment (Products) |
Rev. |
Reac. |
---|
3.5.99.6 |
D-glucosamine 6-phosphate + H2O |
active towards alpha-anomer, inactive towards the beta-anomer. Strong affinity for the open-chain form of glucosamine 6-phosphate |
Escherichia coli |
D-fructose 6-phosphate + NH3 |
- |
? |
|
Subunits
EC Number |
Subunits |
Comment |
Organism |
---|
3.5.99.6 |
? |
x * 28000-30000, SDS-PAGE |
Escherichia coli |
Ki Value [mM]
EC Number |
Ki Value [mM] |
Ki Value maximum [mM] |
Inhibitor |
Comment |
Organism |
Structure |
---|
3.5.99.6 |
0.002 |
- |
2-deoxy-2-amino-D-glucitol 6-phosphate |
pH 7.8, 25°C, substrate : D-glucosamine-6-phosphate |
Escherichia coli |
|