Fig. 1From: Modular bioengineering of whole-cell catalysis for sialo-oligosaccharide production: coordinated co-expression of CMP-sialic acid synthetase and sialyltransferase3SL synthesis by coupled reactions of CSS and α2,3-SiaT. The α2,3-SiaT is shown to also hydrolyze CMP-Neu5Ac in a side reaction. CSS CMP-sialic acid synthetase, SiaT sialyltransferaseBack to article page