Figure 4From: Metabolic engineering of microbes for oligosaccharide and polysaccharide synthesisMetabolic pathway for CMP-NeuAc synthesis using CMP-NeuAc synthase [13]. Enzymes – 1: sialic acid permease (NanT), 2: sialic acid aldolase (NanA), 3: CMP-NeuAc synthase, 4: α2,3-sialyltransferase, 5: β-galactoside permease (LacY).Back to article page