NCBI Accession #
NP_001154283.1
NCBI GenBank Nucleotide #
NM_001160811.2
NCBI Official Full Name
lysine-ketoglutarate reductase/saccharopine dehydrogenase bifunctional enzyme
NCBI Official Symbol
AT4G33150
NCBI Official Synonym Symbols
F4I10.80; F4I10_80; LKR; LKR/SDH; LYSINE-KETOGLUTARATE REDUCTASE/SACCHAROPINE DEHYDROGENASE; SACCHAROPINE DEHYDROGENASE; SDH
NCBI Protein Information
lysine-ketoglutarate reductase/saccharopine dehydrogenase bifunctional enzyme
NCBI Summary
Encodes two proteins. One protein is the monofunctional saccharopine dehydrogenase involved in lysine degradation. The longer protein from the same LKR/SDH locus is bifunctional and also has saccharopine dehydrogenase activity. The monofunctional SDH functions mainly to enhance the flux of lysine catabolism. Gene expression is induced by abscisic acid, jasmonate, and under sucrose starvation.
UniProt Gene Name
LKR/SDH
UniProt Synonym Gene Names
LKR; SDH; LKR/SDH; LKR; SDH
UniProt Protein Name
Alpha-aminoadipic semialdehyde synthase
UniProt Synonym Protein Names
cAt-LKR/SDH; LKR/SDH
UniProt Primary Accession #
Q9SMZ4
UniProt Secondary Accession #
O04155; O04156; O04884; Q7DM71; Q947M5; Q94BT4
UniProt Comments
Bifunctional enzyme that catalyzes the first two steps in lysine degradation. The N-terminal and the C-terminal contain lysine-oxoglutarate reductase and saccharopine dehydrogenase activity, respectively. Negatively regulates free Lys accumulation in seeds.