pfam08042: PqqA (This model is not part of the current CDD release)
PqqA family
This family consists of proteins belonging to the coenzyme Pyrroloquinoline quinone A (pqqA) family. PQQ is the non-covalently bounded prosthetic group of many quinoproteins catalyzing reactions in the periplasm of Gram-negative bacteria. PQQ is formed by the fusion of glutamate and tyrosine and synthesis of PQQ require the proteins encoded by the pqqABCDEF operon but details of the biosynthetic pathway are unclear.
Jiyao W et al.(2023). "The conserved domain database in 2023.",