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Literature summary for 1.5.1.8 extracted from

  • Moulin, M.; Deleu, C.; Larher, F.
    L-Lysine catabolism is osmo-regulated at the level of lysine-ketoglutarate reductase and saccharopine dehydrogenase in rapeseed leaf discs (2000), Plant Physiol. Biochem., 38, 577-585.
No PubMed abstract available

Activating Compound

Activating Compound Comment Organism Structure
abscisic acid 0.05 mM, incubation for 12 h, significantly increased activity Brassica napus
additional information activity is enhanced with decreasing osmotic potential and LKR/SDH gene is upregulated by osmotic stress Brassica napus
polyethylene glycol 6000 enzyme activity increases in response to an upshock osmotic stress caused by polyethylene glycol 6000 solutions of decreasing osmotic potential with values ranging from -0.1 to -3 MPa Brassica napus

Cloned(Commentary)

Cloned (Comment) Organism
isolation of the cDNA and gene encoding bifunctional enzyme with lysine-ketoglutarate reductase EC 1.5.1.8 and saccharopine dehydrogenase EC 1.5.1.9 activities Brassica napus

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
L-lysine + 2-oxoglutarate + NADPH Brassica napus lysine catabolism N6-(L-1,3-dicarboxypropyl)-L-lysine + NADP+ + H2O
-
?
L-lysine + 2-oxoglutarate + NADPH Brassica napus L-lysine catabolism is reversibly osmo-regulated at the level of LKR/SDH bifunctional enzyme N6-(L-1,3-dicarboxypropyl)-L-lysine + NADP+ + H2O
-
?

Organism

Organism UniProt Comment Textmining
Brassica napus
-
var. oleifera cv. Samourai
-

Source Tissue

Source Tissue Comment Organism Textmining
leaf
-
Brassica napus
-

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
L-lysine + 2-oxoglutarate + NADPH enzyme catalyzes lysine degradation to saccharopine Brassica napus N6-(L-1,3-dicarboxypropyl)-L-lysine + NADP+ + H2O N6-(L-1,3-dicarboxypropyl)-L-lysine is identical with saccharopine ?
L-lysine + 2-oxoglutarate + NADPH lysine catabolism Brassica napus N6-(L-1,3-dicarboxypropyl)-L-lysine + NADP+ + H2O
-
?
L-lysine + 2-oxoglutarate + NADPH L-lysine catabolism is reversibly osmo-regulated at the level of LKR/SDH bifunctional enzyme Brassica napus N6-(L-1,3-dicarboxypropyl)-L-lysine + NADP+ + H2O
-
?

Temperature Optimum [°C]

Temperature Optimum [°C] Temperature Optimum Maximum [°C] Comment Organism
30
-
assay at Brassica napus

Cofactor

Cofactor Comment Organism Structure
additional information NADH can not replace NADPH Brassica napus
NADPH
-
Brassica napus