- glutamate synthase (NADPH) activity
Catalysis of the reaction: 2 L-glutamate + NADP+ = 2-oxoglutarate + L-glutamine + H+ + NADPH. This is a two-step reaction: (a) L-glutamate + NH3 = L-glutamine + H2O, (b) L-glutamate + NADP+ + H2O = NH3 + 2-oxoglutarate + NADPH + H+.
- obsolete quinolinate synthetase complex
OBSOLETE. A heterodimer which acts as a quinolinate synthetase; quinolinate synthetase B (L-aspartate oxidase) catalyzes the oxidation of L-aspartate to L-iminoaspartate; quinolinate synthetase A condenses L-imidoaspartate and dihydroxyacetone to quinolinate.
- glutamate synthase (ferredoxin) activity
Catalysis of the reaction: 2 L-glutamate + 2 oxidized ferredoxin = L-glutamine + 2-oxoglutarate + 2 reduced ferredoxin + 2 H+. This is a two-step reaction: (a) L-glutamate + NH3 = L-glutamine + H2O, (b) L-glutamate + 2 oxidized ferredoxin + H2O = NH3 + 2-oxoglutarate + 2 reduced ferredoxin + 2 H+.
- tubulin-tyrosine carboxypeptidase
Catalysis of the reaction: C-terminal L-alpha-aminoacyl-L-glutamyl-L-glutamyl-L-tyrosyl-[tubulin] + H2O = C-terminal L-alpha-aminoacyl-L-glutamyl-L-glutamyl-[tubulin] + L-tyrosine.