Analysis of the Rhizobium meliloti genes exoU, exoV, exoW, exoT, and exoI involved in exopolysaccharide biosynthesis and nodule invasion: exoU and exoW probably encode glucosyltransferases.
Becker A, Kleickmann A, Küster H, Keller M, Arnold W, Pühler A. Mol Plant Microbe Interact. 1993 Nov-Dec; 6(6):735-44.