29861 gltB
Thalassiosira pseudonana

The chemical reactions and pathways, including anabolism and catabolism, by which living organisms transform chemical substances. Metabolic processes typically transform small molecules, but also include macromolecular processes such as DNA repair and replication, and protein synthesis and degradation.

Catalysis of an oxidation-reduction (redox) reaction, a reversible chemical reaction in which the oxidation state of an atom or atoms within a molecule is altered. One substrate acts as a hydrogen or electron donor and becomes oxidized, while the other acts as hydrogen or electron acceptor and becomes reduced.

The chemical reactions and pathways resulting in the formation of glutamate, the anion of 2-aminopentanedioic acid.

Catalysis of the formation of L-glutamine and 2-oxoglutarate from L-glutamate, using NADH, NADPH or ferredoxin as hydrogen acceptors.

The chemical reactions and pathways involving organic or inorganic compounds that contain nitrogen, including (but not limited to) nitrogen fixation, nitrification, denitrification, assimilatory/dissimilatory nitrate reduction and the interconversion of nitrogenous organic matter and ammonium.

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+.

A complex that possesses glutamate synthase (NADPH) activity.

Catalysis of the reaction: 2 L-glutamate + NAD(P)+ = L-glutamine + 2-oxoglutarate + NAD(P)H + H+.