1.1.1.365 | synthesis |
L-galactonate shows potential applications as an additive to nutrients and cosmetics. AnGar1 variants are developed that represent the a GalA reductases with a higher preference for NADH compared to NADPH. The altered cofactor-specificity enables the coupling of GalA reduction to glycolysis, resulting in higher yields of GalOA when glucose is used as a redox donor. The engineered AnGar1 should prove valuable for D-galacturonic acid utilization in pectin-rich hydrolysates, which contain neutral sugars such as glucose, galactose, or arabinose, all of which are funneled into glycolysis. The NADH-dependent GalA reductases can facilitate the coupling of L-galactonate production to the oxidation of glycerol, an abundant waste product that can be supplemented to pectin-rich hydrolysates |
-, 763698 |