Cloned (Comment) | Organism |
---|---|
expression of wild-type and mutant enzymes via shuttle vector pECKA in Escherichia coli and in Corynebacterium glutamicum | Corynebacterium glutamicum |
Protein Variants | Comment | Organism |
---|---|---|
additional information | mutations of the residues M8 and M13 of the small, regulatory subunit encoded by gene ilvN result in reduced sensitivity of the mutant enzymes to feedback inhibition which leads to increased production of valine as well as of isoleucine and leucine | Corynebacterium glutamicum |
Inhibitors | Comment | Organism | Structure |
---|---|---|---|
isoleucine | feedback inhibition of wild-type enzyme about 50% at 10 mM, M8 and M13 mutants are resistant | Corynebacterium glutamicum | |
leucine | feedback inhibition of wild-type enzyme about 50% at 10 mM, M8 and M13 mutants are resistant | Corynebacterium glutamicum | |
valine | feedback inhibition of wild-type enzyme about 50% at 10 mM, M8 and M13 mutants are resistant | Corynebacterium glutamicum |
Metals/Ions | Comment | Organism | Structure |
---|---|---|---|
Mg2+ | - |
Corynebacterium glutamicum |
Natural Substrates | Organism | Comment (Nat. Sub.) | Natural Products | Comment (Nat. Pro.) | Rev. | Reac. |
---|---|---|---|---|---|---|
pyruvate | Corynebacterium glutamicum | the enzyme catalyzes the first committed step in the biosynthesis of valine, leucine, and isoleucine, overview | 2-acetolactate + CO2 | - |
? |
Organism | UniProt | Comment | Textmining |
---|---|---|---|
Corynebacterium glutamicum | - |
genes ilvBN of the ilvBNC operon, genes ilvB and ilvN encode the catalytic and the small, regulatory subunits, respectively | - |
Substrates | Comment Substrates | Organism | Products | Comment (Products) | Rev. | Reac. |
---|---|---|---|---|---|---|
pyruvate | - |
Corynebacterium glutamicum | 2-acetolactate + CO2 | - |
? | |
pyruvate | the enzyme catalyzes the first committed step in the biosynthesis of valine, leucine, and isoleucine, overview | Corynebacterium glutamicum | 2-acetolactate + CO2 | - |
? |
Synonyms | Comment | Organism |
---|---|---|
acetohydroxyacid synthase | - |
Corynebacterium glutamicum |
AHAS | - |
Corynebacterium glutamicum |
pH Optimum Minimum | pH Optimum Maximum | Comment | Organism |
---|---|---|---|
7.3 | - |
assay at | Corynebacterium glutamicum |
Cofactor | Comment | Organism | Structure |
---|---|---|---|
FAD | - |
Corynebacterium glutamicum | |
thiamine diphosphate | - |
Corynebacterium glutamicum |