CATH Classification

Domain Context

CATH Clusters

Superfamily 3.40.47.10
Functional Family

Enzyme Information

2.3.1.230
2-heptyl-4(1H)-quinolone synthase.
based on mapping to UniProt Q9I4X1
Octanoyl-CoA + 2-aminobenzoylacetate = 2-heptyl-4(1H)-quinolone + CoA + CO(2) + H(2)O.
-!- The enzyme, characterized from the bacterium Pseudomonas aeruginosa, is a heterodimeric complex. -!- The PqsC subunit acquires an octanoyl group from octanoyl-CoA and attaches it to an internal cysteine residue. -!- Together with the PqsB subunit, the proteins catalyze the coupling of the octanoyl group with (2-aminobenzoyl)acetate, leading to decarboxylation and dehydration events that result in closure of the quinoline ring.

UniProtKB Entries (1)

Q9I4X1
PQSC_PSEAE
Pseudomonas aeruginosa PAO1
2-heptyl-4(1H)-quinolone synthase subunit PqsC

PDB Structure

PDB 6ESZ
External Links
Method X-RAY DIFFRACTION
Organism
Primary Citation
The Alkylquinolone Repertoire of Pseudomonas aeruginosa is Linked to Structural Flexibility of the FabH-like 2-Heptyl-3-hydroxy-4(1H)-quinolone (PQS) Biosynthesis Enzyme PqsBC.
Witzgall, F., Depke, T., Hoffmann, M., Empting, M., Bronstrup, M., Muller, R., Blankenfeldt, W.
Chembiochem