1.1.99.22	(S)-2-hydroxyglutarate + pyrroloquinoline quinone	-	
1.1.99.22	(S)-2-hydroxyglutarate + ubiquinone	-	
1.1.99.22	additional information	production of 5-keto-D-gluconate is solely dependent on enzyme	
1.1.99.22	additional information	PQQ-GLDH plays a major role in L-sorbose production	
1.1.99.22	additional information	broad substrate specificity but high regio- and stereospecificity