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Literature summary for 1.5.1.9 extracted from

  • Goncalves-Butruille, M.; Szajner, P.; Torigoi, E.; Leite, A.; Arruda, P.
    Purification and Characterization of the Bifunctional Enzyme Lysine-Ketoglutarate Reductase-Saccharopine Dehydrogenase from Maize (1996), Plant Physiol., 110, 765-771.
    View publication on PubMedView publication on EuropePMC

Molecular Weight [Da]

Molecular Weight [Da] Molecular Weight Maximum [Da] Comment Organism
125000
-
2 * 125000, SDS-PAGE, lysine-ketoglutarate reductase (EC 1. 5.1.8) and saccharopine dehydrogenase activity (EC 1.5.1.9) occur on a single protein Zea mays
260000
-
gel filtration with Superdex, lysine-ketoglutarate reductase (EC 1. 5.1.8) and saccharopine dehydrogenase activity (EC 1.5.1.9) occur on a single protein Zea mays

Natural Substrates/ Products (Substrates)

Natural Substrates Organism Comment (Nat. Sub.) Natural Products Comment (Nat. Pro.) Rev. Reac.
N6-(L-1,3-dicarboxypropyl)-L-lysine + NAD+ + H2O Zea mays involved in lysine catabolism L-glutamate + 2-aminoadipate 6-semialdehyde + NADH + H+
-
r

Organism

Organism UniProt Comment Textmining
Zea mays
-
lysine-ketoglutarate reductase (EC 1.5.1.8) and saccharopine dehydrogenase activity (EC 1.5.1.9) occur on a single protein, called aminoadipic semialdehyde synthase
-
Zea mays
-
maize hybrid F-352
-

Purification (Commentary)

Purification (Comment) Organism
lysine-ketoglutarate reductase (EC 1. 5.1.8) and saccharopine dehydrogenase activity (EC 1.5.1.9) occur on a single protein Zea mays

Source Tissue

Source Tissue Comment Organism Textmining
endosperm
-
Zea mays
-

Specific Activity [micromol/min/mg]

Specific Activity Minimum [µmol/min/mg] Specific Activity Maximum [µmol/min/mg] Comment Organism
0.0024
-
crude extract from immature endosperm Zea mays
2.14
-
after purification Zea mays

Substrates and Products (Substrate)

Substrates Comment Substrates Organism Products Comment (Products) Rev. Reac.
N6-(L-1,3-dicarboxypropyl)-L-lysine + NAD+ + H2O
-
Zea mays L-glutamate + 2-aminoadipate 6-semialdehyde + NADH + H+
-
r
N6-(L-1,3-dicarboxypropyl)-L-lysine + NAD+ + H2O involved in lysine catabolism Zea mays L-glutamate + 2-aminoadipate 6-semialdehyde + NADH + H+
-
r

Subunits

Subunits Comment Organism
dimer 2 * 125000, SDS-PAGE, lysine-ketoglutarate reductase (EC 1. 5.1.8) and saccharopine dehydrogenase activity (EC 1.5.1.9) occur on a single protein Zea mays

Synonyms

Synonyms Comment Organism
SDH
-
Zea mays

pH Optimum

pH Optimum Minimum pH Optimum Maximum Comment Organism
9.5
-
-
Zea mays

pH Range

pH Minimum pH Maximum Comment Organism
6.5 10 no activity below pH 6 and over pH 10 Zea mays

Cofactor

Cofactor Comment Organism Structure
NAD+
-
Zea mays
NADP+ 9% of the rate with NAD+ Zea mays