Saccharopine dehydrogenase (NAD+, L-lysine-forming)

saccharopine dehydrogenase (NAD+, L-lysine-forming)
Saccharopine dehydrogenase (L-lysine-forming) homodimer, Saccharomyces cerevisiae
Identifiers
EC no.1.5.1.7
CAS no.9073-96-5
Databases
IntEnzIntEnz view
BRENDABRENDA entry
ExPASyNiceZyme view
KEGGKEGG entry
MetaCycmetabolic pathway
PRIAMprofile
PDB structuresRCSB PDB PDBe PDBsum
Gene OntologyAmiGO / QuickGO
Search
PMCarticles
PubMedarticles
NCBIproteins

In enzymology, a saccharopine dehydrogenase (NAD+, L-lysine-forming) (EC 1.5.1.7) is an enzyme that catalyzes the chemical reaction

N6-(L-1,3-dicarboxypropyl)-L-lysine + NAD+ + H2O L-lysine + 2-oxoglutarate + NADH + H+

The 3 substrates of this enzyme are N6-(L-1,3-dicarboxypropyl)-L-lysine, NAD+, and H2O, whereas its 4 products are L-lysine, 2-oxoglutarate, NADH, and H+.

This enzyme belongs to the family of oxidoreductases, specifically those acting on the CH-NH group of donors with NAD+ or NADP+ as acceptor. The systematic name of this enzyme class is N6-(L-1,3-dicarboxypropyl)-L-lysine:NAD+ oxidoreductase (L-lysine-forming). Other names in common use include lysine-2-oxoglutarate reductase, dehydrogenase, saccharopine (nicotinamide adenine dinucleotide,, lysine forming), epsilon-N-(L-glutaryl-2)-L-lysine:NAD oxidoreductase (L-lysine, forming), N6-(glutar-2-yl)-L-lysine:NAD oxidoreductase (L-lysine-forming), 6-N-(L-1,3-dicarboxypropyl)-L-lysine:NAD+ oxidoreductase, and (L-lysine-forming). This enzyme participates in lysine biosynthesis and lysine degradation.