Fig. 3
source for growth. Abbreviations used for the metabolic intermediates and enzymes within the biochemical network are as follows: PQQ pyrroloquinoline quinone; Gcd glucose dehydrogenase, FAD flavin adenine dinucleotide, Gad gluconate dehydrogenase, Glk glucokinase, GnuK gluconate kinase, KguK 2-ketogluconate kinase, KguD 2-ketogluconate-6-phosphate reductase, Zwf glucose-6-phosphate dehydrogenase, Pgl 6-phosphogluconolactonase, Edd 6-phosphogluconate dehydratase, Eda 2-keto-3-deoxy-6-phosphogluconate aldolase, TCA cycle tricarboxylic acid cycle, OM outer membrane, IM inner membrane
Schematic representation of glucose metabolism and xylose transformation in P. putida KT2440. Glucose catabolism in P. putida occurs through the simultaneous operation of three pathways that converge at the level of 6-phosphogluconate. D-xylose was oxidized to the dead-end product D-xylonate by the periplasmic glucose dehydrogenase Gcd instead of being used as a carbon