Journal of Biotechnology published new progress about 526-98-7. 526-98-7 belongs to alcohols-buliding-blocks, auxiliary class Sugar Units,Other Sugar Units, name is (3S,4R,5S)-3,4,5,6-Tetrahydroxy-2-oxohexanoic acid, and the molecular formula is C6H10O7, HPLC of Formula: 526-98-7.
Cai, Lei published the artcileGenetic engineering of Ketogulonigenium vulgare for enhanced production of 2-keto-L-gulonic acid, HPLC of Formula: 526-98-7, the publication is Journal of Biotechnology (2012), 157(2), 320-325, database is CAplus and MEDLINE.
Folate derivatives are crucial growth factors for Ketogulonigenium vulgare which is used in mixed culture with Bacillus megaterium for the industrial production of 2-keto-L-gulonic acid (2-KGA), the precursor of L-ascorbic acid (L-AA) or vitamin C (Vc). To improve the growth and 2-KGA production, five genes involved in folate biosynthesis identified in a folate gene cluster from Lactococcus lactis MG1363, including folB, folKE, folP, folQ and folC, were over-expressed in K. vulgare. Intracellular folate concentration in the recombinant strain harboring folate biosynthesis genes cluster under the control of Psdh (sorbose dehydrogenase gene sdh promoter from K. vulgare) was 8 times higher than that of the wildtype K. vulgare DSM 4025 (P < 0.001). In shake flask studies, the cell d. and 2-KGA production of the recombinant K. vulgare Rif (pMCS2PsdhfolBC) were increased by 18% (P < 0.001) and 14% (P < 0.001), resp., under a relatively stable pH 7 condition. In fermentor studies, enhancements around 25% cell d. (P < 0.001) and approx. 35% 2-KGA productivity (P < 0.001) were observed in comparison with the controls without over-expressing the folate biosynthesis genes. This was the first successful study of metabolic engineering on K. vulgare for enhanced 2-KGA production
Journal of Biotechnology published new progress about 526-98-7. 526-98-7 belongs to alcohols-buliding-blocks, auxiliary class Sugar Units,Other Sugar Units, name is (3S,4R,5S)-3,4,5,6-Tetrahydroxy-2-oxohexanoic acid, and the molecular formula is C6H10O7, HPLC of Formula: 526-98-7.
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