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CATH Classification

Domain Context

CATH Clusters

Superfamily Succinate dehydrogenase/fumarate reductase flavoprotein, catalytic domain
Functional Family

Enzyme Information

1.4.3.16
L-aspartate oxidase.
based on mapping to UniProt Q972D2
L-aspartate + O(2) = iminosuccinate + H(2)O(2).
-!- L-aspartate oxidase catalyzes the first step in the de novo biosynthesis of NAD(+) in some bacteria. -!- O(2) can be replaced by fumarate as electron acceptor, yielding succinate. -!- The ability of the enzyme to use both O(2) and fumarate in cofactor reoxidation enables it to function under both aerobic and anaerobic conditions. -!- Iminosuccinate can either be hydrolyzed to form oxaloacetate and NH(3) or can be used by EC 2.5.1.72 in the production of quinolinate.

UniProtKB Entries (1)

Q972D2
NADB_SULTO
Sulfurisphaera tokodaii str. 7
L-aspartate oxidase

PDB Structure

PDB 2E5V
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Structure of l-aspartate oxidase from the hyperthermophilic archaeon Sulfolobus tokodaii
Sakuraba, H., Yoneda, K., Asai, I., Tsuge, H., Katunuma, N., Ohshima, T.
Biochim.Biophys.Acta
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