CATH Classification

Domain Context

CATH Clusters

Superfamily Heme oxygenase-like
Functional Family

Enzyme Information

1.3.3.11
Pyrroloquinoline-quinone synthase.
based on mapping to UniProt P27505
6-(2-amino-2-carboxyethyl)-7,8-dioxo-1,2,3,4,7,8-hexahydroquinoline-2,4- dicarboxylate + 3 O(2) = 4,5-dioxo-4,5-dihydro-1H-pyrrolo[2,3- f]quinoline-2,7,9-tricarboxylate + 2 H(2)O(2) + 2 H(2)O.
-!- So far only a single turnover of the enzyme has been observed, and the pyrroloquinoline quinone remains bound to it; it is not yet known what releases the product in the bacterium.

UniProtKB Entries (1)

P27505
PQQC_KLEPN
Klebsiella pneumoniae
Pyrroloquinoline-quinone synthase

PDB Structure

PDB 1OTW
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
Quinone biogenesis: Structure and mechanism of PqqC, the final catalyst in the production of pyrroloquinoline quinone.
Magnusson, O.T., Toyama, H., Saeki, M., Rojas, A., Reed, J.C., Liddington, R.C., Klinman, J.P., Schwarzenbacher, R.
Proc.Natl.Acad.Sci.USA
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