FIG. 6.
Synthesis and possible functions of UDP-glucose (UDP-Glc) and UDP-galactose (UDP-Gal) in V. cholerae. Strains lacking galE are predicted to accumulate the toxic products UDP-Gal and galactose-1-phosphate (Gal-1P) in the presence of high exogenous galactose. Strains grown in the absence of exogenous galactose must synthesize UDP-Gal via GalE.