PQQ

beta-propeller repeat
PQQ
SMART accession number:SM00564
Description: Beta-propeller repeat occurring in enzymes with pyrrolo-quinoline quinone (PQQ) as cofactor, in Ire1p-like Ser/Thr kinases, and in prokaryotic dehydrogenases.
Interpro abstract (IPR018391): Pyrrolo-quinoline quinone (PQQ) is a redox coenzyme, which serves as a cofactor for a number of enzymes (quinoproteins) and particularly for some bacterial dehydrogenases [(PUBMED:2549854), (PUBMED:2572081)]. A number of bacterial quinoproteins belong to this family.

Enzymes in this group have repeats of a beta propeller.

Family alignment:
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There are 52433 PQQ domains in 10481 proteins in SMART's nrdb database.

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