GDP-fucose synthetase from Escherichia coli: structure of a unique member of the short-chain dehydrogenase/reductase family that catalyzes two distinct reactions at the same active site.
Somers, W.S., Stahl, M.L., Sullivan, F.X.(1998) Structure 6: 1601-1612
- PubMed: 9862812 
- DOI: 10.1016/s0969-2126(98)00157-9
- Primary Citation of Related Structures:  
1BSV, 1FXS, 1GFS - PubMed Abstract: 
. In all species examined, GDP-fucose is synthesized from GDP-mannose in a three-step reaction catalyzed by two enzymes, GDP-mannose 4,6 dehydratase and a dual function 3, 5-epimerase-4-reductase named GDP-fucose synthetase. In this latter aspect fucose biosynthesis differs from that of other deoxy and dideoxy sugars, in which the epimerase and reductase activities are present as separate enzymes ...