1.1.1.116 gene ARA1, co-overexpression of the enzyme and the D-arabinono-1,4-lactone oxidase and/or L-galactono-1,4-lactone dehydrogenase in Saccharomyces cerevisiae strains result in overproduction and accumulation of vitamin C in the culture medium, while overexpression of the D-arabinose dehydrogenase alone does not alter the L-ascorbate content, overview 1.1.1.116 gene YMR041c or ARA2, phylogenetic tree, expression of His6-tagged Ara2p in Escherichia coli