Protein Variants | Comment | Organism |
---|---|---|
D210A | decreased activity | Escherichia coli |
D210A | kcat/Km is 9091fold lower than wild-type value | Escherichia coli |
H232A | decreased activity | Escherichia coli |
H232A | kcat/Km is 208333fold lower than wild-type value | Escherichia coli |
S86A | decreased activity | Escherichia coli |
S86A | kcat/Km is 1498fold lower than wild-type value | Escherichia coli |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.0083 | - |
5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate | pH 7.0, 37°C | Escherichia coli | |
0.0083 | - |
2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate | wild-type at 37°C | Escherichia coli | |
0.0086 | - |
5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate | 25°C, mutant enzyme H232A | Escherichia coli | |
0.0086 | - |
2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate | mutant H232A | Escherichia coli | |
0.0101 | - |
2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate | wild-type at 25°C | Escherichia coli | |
0.0191 | - |
5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate | 25°C, wild-type enzyme | Escherichia coli | |
0.028 | - |
5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate | 25°C, mutant enzyme S86A | Escherichia coli | |
0.028 | - |
2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate | mutant S86A at 25°C | Escherichia coli | |
0.118 | - |
5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate | 25°C, mutant enzyme D210A | Escherichia coli | |
0.118 | - |
2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate | mutant D210A at 25°C | Escherichia coli |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
additional information | SHCHC synthase activity of MenH is not affected by the addition of a divalent ion (1 mM of Mg2+, Ba2+, Mn2+, Ca2+, Co2+, or Ni2+) | Escherichia coli |
Molecular Weight [Da] | Molecular Weight Maximum [Da] | Comment | Organism |
---|---|---|---|
25400 | - |
gel filtration | Escherichia coli |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate | Escherichia coli | step in menaquinone biosynthesis | (1R,6R)-6-hydroxy-2-succinylcyclohexa-2,4-diene-1-carboxylate + pyruvate | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Escherichia coli | - |
- |
- |
Purification (Comment) | Organism |
---|---|
- |
Escherichia coli |
combination of Ni2+-affinity chromatography and size-exclusion chromatography | Escherichia coli |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate | assay at 37°C, pH 7.0 | Escherichia coli | (1R,6R)-2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate + pyruvate | - |
? | |
5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate | - |
Escherichia coli | (1R,6R)-6-hydroxy-2-succinylcyclohexa-2,4-diene-1-carboxylate + pyruvate | - |
? | |
5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate | step in menaquinone biosynthesis | Escherichia coli | (1R,6R)-6-hydroxy-2-succinylcyclohexa-2,4-diene-1-carboxylate + pyruvate | - |
? |
Subunits | Comment | Organism |
---|---|---|
monomer | - |
Escherichia coli |
monomer | 1 * 25400 | Escherichia coli |
Synonyms | Comment | Organism |
---|---|---|
(1R,6R)-2-succinyl-6-hydroxy-2,4-cyclohexadiene-1-carboxylate synthase | - |
Escherichia coli |
MenH | - |
Escherichia coli |
SHCHC synthase | - |
Escherichia coli |
YfbB | - |
Escherichia coli |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
37 | - |
assay at | Escherichia coli |
Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.18 | - |
5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate | 25°C, mutant enzyme D210A | Escherichia coli | |
0.29 | - |
5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate | 25°C, mutant enzyme S86A | Escherichia coli | |
5.8 | - |
5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate | 25°C, mutant enzyme H232A | Escherichia coli | |
147 | - |
5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate | 25°C, wild-type enzyme | Escherichia coli | |
167 | - |
5-enolpyruvoyl-6-hydroxy-2-succinyl-cyclohex-3-ene-1-carboxylate | pH 7.0, 37°C | Escherichia coli |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7 | - |
assay at | Escherichia coli |
General Information | Comment | Organism |
---|---|---|
physiological function | involved in menaquinone biosynthesis | Escherichia coli |
kcat/KM Value [1/mMs-1] | kcat/KM Value Maximum [1/mMs-1] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
67 | - |
2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate | mutant H232A | Escherichia coli | |
1500 | - |
2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate | mutant D210A at 25°C | Escherichia coli | |
10000 | - |
2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate | mutant S86A at 25°C | Escherichia coli | |
14000000 | - |
2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate | wild-type at 25°C | Escherichia coli | |
20000000 | - |
2-succinyl-5-enolpyruvyl-6-hydroxy-3-cyclohexene-1-carboxylate | wild-type at 37°C | Escherichia coli |