Crystallization (Comment) | Organism |
---|---|
X-ray structure of wild-type enzyme shows that when both phosphoenolpyruvate and D-arabinose 5-phosphate bind, the active site becomes isolated from the environment due to a conformational change of the L7 loop. The structures of the R106G mutant, without substrates, and with phosphoenolpyruvate and phosphoenolpyruvate plus D-arabinose 5-phosphate bound reveal that in R106G closure of the L7 loop is impaired | Aquifex aeolicus |
Protein Variants | Comment | Organism |
---|---|---|
R106G | the closure of the L7 loop is impaired. The mutant enzyme shows a smaller KM-value for phosphoenolpyruvate, larger Ki-value and KM-value for D-arabinose 5-phosphate and smaller Ki-values for phosphate and 2-dehydro-3-deoxy-D-octonate 8-phosphate compared ti wild-type enzyme | Aquifex aeolicus |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
2-dehydro-3-deoxy-D-octonate 8-phosphate | mutant enzyme R106G is more severely inhibited than wild-type enzyme | Aquifex aeolicus | |
D-arabinose 5-phosphate | mutant enzyme R106G is less severely inhibited than wild-type enzyme | Aquifex aeolicus | |
phosphate | mutant enzyme R106G is more severely inhibited than wild-type enzyme | Aquifex aeolicus |
KM Value [mM] | KM Value Maximum [mM] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
additional information | - |
additional information | - |
Aquifex aeolicus |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Aquifex aeolicus | O66496 | - |
- |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
phosphoenolpyruvate + D-arabinose 5-phosphate | - |
Aquifex aeolicus | 2-dehydro-3-deoxy-D-octonate 8-phosphate + phosphate | - |
? |
Synonyms | Comment | Organism |
---|---|---|
Kdo8P synthase | - |
Aquifex aeolicus |
Turnover Number Minimum [1/s] | Turnover Number Maximum [1/s] | Substrate | Comment | Organism | Structure |
---|---|---|---|---|---|
0.32 | - |
phosphoenolpyruvate | mutant enzyme R106G | Aquifex aeolicus | |
0.32 | - |
D-arabinose 5-phosphate | mutant enzyme R1096G | Aquifex aeolicus | |
0.48 | - |
phosphoenolpyruvate | wild-type enzyme | Aquifex aeolicus | |
0.48 | - |
D-arabinose 5-phosphate | wild-type enzyme | Aquifex aeolicus |