3.1.3.68	overexpression of DOG1 in Saccharomyces cerevisiae transketolase-deficient strain H1520 containing the integrated xylitol dehydrogenase-encoding gene (XYL2) gene increases the excretion of ribitol (by 1.6fold) and D-ribose (by 3.8fold) compared to the strain lacking DOG1	677697