The present invention features improved methods for the enhanced
production of pantoate and pantothenate utilizing microorganisms having
modified pantothenate biosynthetic enzyme activities and having modified
methylenetetrahydrofolate (MTF) biosynthetic enzyme activities. In
particular, the invention features methods for enhancing production of
desired products by increasing levels of a key intermediate,
ketopantoate, by increasing enzymes or substrates that contribute
directly or indirectly to its synthesis. Recombinant microorganisms and
conditions for culturing same are also are featured. Also featured are
compositions produced by such microorganisms.