Inhibitors | Comment | Organism | Structure |
---|---|---|---|
D-Cystine | 70% inhibition at 0.01 mM, binds via the cysteine moiety covalently to the catalytic Cys135 of the enzyme, pH-dependent proces, optimal at pH 7.0-7.5, inhibition is reversible by DTT, dithioerythritol, 2-mercaptoethanol, dimercaptopropanol, and reduced glutathione, no protection by aspartate-beta-semialdehyde, NADP+ or NADPH, inhibition mechanism and kinetics | Escherichia coli | |
DTNB | reversible by DTT, dithioerythritol, 2-mercaptoethanol, dimercaptopropanol, and reduced glutathione | Escherichia coli | |
GSSG | oxidized glutathione | Escherichia coli | |
L-2-Amino-4-oxo-5-chloropentanoic acid | substrate analogue, irreversible inactivation, pseudo-first-order kinetics | Escherichia coli | |
L-cystine | complete inhibition at 0.01 mM, binds via the cysteine moiety covalently to the catalytic Cys135 of the enzyme, pH-dependent process, optimal at pH 7.0-7.5, inhibition is reversible by DTT, dithioerythritol, 2-mercaptoethanol, dimercaptopropanol, and reduced glutathione, no protection by aspartate-beta-semialdehyde, NADP+ or NADPH, inhibition mechanism and kinetics | Escherichia coli | |
L-cystine diethyl ester | 68% inhibition at 0.01 mM, reversible by DTT, dithioerythritol, 2-mercaptoethanol, dimercaptopropanol, and reduced glutathione | Escherichia coli | |
L-cystine dimethyl ester | 67% inhibition at 0.01 mM, reversible by DTT, dithioerythritol, 2-mercaptoethanol, dimercaptopropanol, and reduced glutathione | Escherichia coli | |
L-cystine hydroxamate | 20% inhibition at 0.01 mM, reversible by DTT, dithioerythritol, 2-mercaptoethanol, dimercaptopropanol, and reduced glutathione | Escherichia coli | |
additional information | no inhibition by N,N'-diacetyl-L-cystine, L-cystine di-beta-naphthylamide, disulfiram, N-acetyl-L-cystine, 2,2-dithiodipyridine, 4,4-dithiodipyridine, L- and D-cysteine, and oxidized and reduced coenzyme A | Escherichia coli |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Escherichia coli | - |
- |
- |
Reaction | Comment | Organism | Reaction ID |
---|---|---|---|
L-aspartate 4-semialdehyde + phosphate + NADP+ = L-4-aspartyl phosphate + NADPH + H+ | catalytic Cys135 is essential for activity | Escherichia coli |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
L-aspartate-4-semialdehyde + phosphate + NADP+ | - |
Escherichia coli | L-4-aspartyl phosphate + NADPH | reverse reaction: reductive dephosphorylation | r |
Synonyms | Comment | Organism |
---|---|---|
ASADH | - |
Escherichia coli |
aspartate-beta-semialdehyde dehydrogenase | - |
Escherichia coli |
Temperature Optimum [°C] | Temperature Optimum Maximum [°C] | Comment | Organism |
---|---|---|---|
30 | - |
assay at | Escherichia coli |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7.5 | - |
assay at | Escherichia coli |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
NADP+ | - |
Escherichia coli | |
NADPH | - |
Escherichia coli |
Ki Value [mM] | Ki Value maximum [mM] | Inhibitor | Comment | Organism | Structure |
---|---|---|---|---|---|
additional information | - |
additional information | inhibition kinetics at 21°C and pH 7.5 | Escherichia coli |