A6T9H1 PQQC_KLEP7 Pyrroloquinoline-quinone synthase 1.3.3.11 Coenzyme PQQ synthesis protein C Pyrroloquinoline quinone biosynthesis protein C pqqC KPN78578_17810 KPN_01811 Klebsiella pneumoniae subsp. pneumoniae (strain ATCC 700721 / MGH 78578) Bacteria Pseudomonadati Pseudomonadota Gammaproteobacteria Enterobacterales Enterobacteriaceae Klebsiella Klebsiella pneumoniae complex NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA] ATCC 700721 / MGH 78578 Ring cyclization and eight-electron oxidation of 3a-(2-amino-2-carboxyethyl)-4,5-dioxo-4,5,6,7,8,9-hexahydroquinoline-7,9-dicarboxylic-acid to PQQ. 6-(2-amino-2-carboxyethyl)-7,8-dioxo-1,2,3,4,7,8-hexahydroquinoline-2,4-dicarboxylate + 3 O2 = pyrroloquinoline quinone + 2 H2O2 + 2 H2O + H(+) Cofactor biosynthesis; pyrroloquinoline quinone biosynthesis. Belongs to the PqqC family. 3D-structure Oxidoreductase PQQ biosynthesis Reference proteome MLITDTLSPQAFEEALRAKGDFYHIHHPYHIAMHNGNATREQIQGWVANRFYYQTTIPLKDAAIMANCPDAQTRRKWVQRILDHDGSHGEDGGIEAWLRLGEAVGLSRDDLLSERHVLPGVRFAVDAYLNFARRACWQEAACSSLTELFAPQIHQSRLDSWPQHYPWIKEEGYFYFRSRLSQANRDVEHGLALAKAYCDSAEKQNRMLEILQFKLDILWSMLDAMTMAYALQRPPYHTVTDKAAWHTTRLV Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms Distributed under the Creative Commons Attribution (CC BY 4.0) License