Fig. 1From: Construction of energy-conserving sucrose utilization pathways for improving poly-γ-glutamic acid production in Bacillus amyloliquefaciens Possible pathways for sucrose utilization in nature. a Sucrose utilization pathway consists of PTS and sucrose-6-P (β-d-Fru-(2 → 1)-α-d-Glc 6-P) hydrolase; b sucrose utilization pathway consists of a putative PTS system and sucrose-6′-P (β-d-Fru 6-P-(2 → 1)-α-d-Glc) phosphorylase; c non-PTS (non-phosphotransferase system) sucrose utilization pathway consists of sucrose permease and sucrase; d non-PTS sucrose utilization pathway consists of sucrose permease and sucrose phosphorylaseBack to article page