Fig. 2From: Metabolic engineering of Escherichia coli for direct production of vitamin C from D-glucoseHPIC–QE–MS analysis of [U–13C]–GDP-D-mannose from different strains. a GDP-D-mannose in B5702; b GDP-D-mannose in B9240; c [U–13C]–GDP-D-mannose in B9240Back to article page