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Literature summary for 1.4.1.14 extracted from

  • Ishiyama, K.; Hayakawa, T.; Yamaya, T.
    Expression of NADH-dependent glutamate synthase protein in the epidermis and exodermis of rice roots in response to the supply of ammonium ions (1998), Planta, 204, 288-294.
    View publication on PubMed
Search for more literature for 1.4.1.14

Activating Compound

Activating Compound Comment Organism Structure
additional information supply of NH4+ at low concentrations increases the expression of the enzyme: supply with 1 mM NH4+ for 24 h increases the enzyme content in the epidermis and exodermis of the root surface Oryza sativa

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
L-glutamine + 2-oxoglutarate + NADH Oryza sativa ammonia assimilation glutamate + NAD+ one of the two synthezised glutamate molecules can be cycled back as substrate for glutamine synthetase reaction and the other can be used for many synthetic reactions ir
L-glutamine + 2-oxoglutarate + NADH Oryza sativa important role in the generation of glutamate for the assimilation of ammonium ions via the glutamine synthetase reaction in the epidermis and exodermis of the root surface, role in the re-utilization of glutamine transported from phloem and xylem in young leaves and grains at the early stage of ripening of rice plants glutamate + NAD+ one of the two synthezised glutamate molecules can be cycled back as substrate for glutamine synthetase reaction and the other can be used for many synthetic reactions ir

Organism

Organism UniProt Comment Textmining
Oryza sativa
-
-
-

Source Tissue

Source Tissue Comment Organism Textmining
root roots of seedlings: root tips and area where the secondary roots are actively developing, enzyme in the central cylinder, apical meristem and the primordia of secondary roots of seedlings grown for 26 d in water, supply with 1 mM ammonium ions for 24 h increases the enzyme content in the epidermis and exodermis of the root surface Oryza sativa
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Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-glutamine + 2-oxoglutarate + NADH
-
 Oryza sativa L-glutamate + NAD+
-
 ir
L-glutamine + 2-oxoglutarate + NADH ammonia assimilation Oryza sativa glutamate + NAD+ one of the two synthezised glutamate molecules can be cycled back as substrate for glutamine synthetase reaction and the other can be used for many synthetic reactions ir
L-glutamine + 2-oxoglutarate + NADH important role in the generation of glutamate for the assimilation of ammonium ions via the glutamine synthetase reaction in the epidermis and exodermis of the root surface, role in the re-utilization of glutamine transported from phloem and xylem in young leaves and grains at the early stage of ripening of rice plants Oryza sativa glutamate + NAD+ one of the two synthezised glutamate molecules can be cycled back as substrate for glutamine synthetase reaction and the other can be used for many synthetic reactions ir

Cofactor

Cofactor Comment Organism Structure
NADH
-
 Oryza sativa