CATH Classification

Domain Context

CATH Clusters

Superfamily NadA-like
Functional Family Quinolinate synthase A

Enzyme Information

2.5.1.72
Quinolinate synthase.
based on mapping to UniProt Q8TZL3
Glycerone phosphate + iminosuccinate = pyridine-2,3-dicarboxylate + 2 H(2)O + phosphate.
-!- Quinolinate synthase catalyzes the second step in the de novo biosynthesis of NAD(+) from aspartate in some bacteria, with EC 1.4.3.16 catalyzing the first step and EC 2.4.2.19 the third step. -!- In Escherichia coli, two of the residues that are involved in the [4Fe-4S] cluster binding appear to undergo reversible disulfide-bond formation that regulates the activity of the enzyme.

UniProtKB Entries (1)

Q8TZL3
NADA_PYRFU
Pyrococcus furiosus DSM 3638
Quinolinate synthase A

PDB Structure

PDB
External Links
Method
Organism
Primary Citation
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