Any feedback?
Please rate this page
(enzyme.php)
(0/150)

BRENDA support

Information on EC 1.4.1.21 - aspartate dehydrogenase

for references in articles please use BRENDA:EC1.4.1.21

Please wait a moment until all data is loaded. This message will disappear when all data is loaded.
IUBMB Comments

The enzyme is strictly specific for L-aspartate as substrate. It produces the unstable compound 2-iminosuccinate, which, in the presence of water, hydrolyses spontaneously to form oxaloacetate. The enzyme from some archaea and thermophilic bacteria is likely to transfer 2-iminosuccinate directly to EC 2.5.1.72, quinolinate synthase, preventing its hydrolysis and enabling the de novo biosynthesis of NAD+.

The expected taxonomic range for this enzyme is: Bacteria, Archaea, Eukaryota
Reaction Schemes
hide(Overall reactions are displayed. Show all >>)

Synonyms
aspartate dehydrogenase, l-aspdh, aspdh, l-aspartate dehydrogenase, more

REACTION
REACTION DIAGRAM
COMMENTARY hide
ORGANISM
UNIPROT
LITERATURE
2-iminosuccinate + H2O = oxaloacetate + NH3
show the reaction diagram
(1b), spontaneous
-
-
-
L-aspartate + H2O + NAD(P)+ = oxaloacetate + NH3 + NAD(P)H + H+
show the reaction diagram
overall reaction
-
-
-
L-aspartate + NAD(P)+ = 2-iminosuccinate + NAD(P)H + H+
show the reaction diagram
(1a)
-
-
-
PATHWAY SOURCE
PATHWAYS