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Báo cáo khoa học: Biochemical characterization of Bacillus subtilis type II isopentenyl diphosphate isomerase, and phylogenetic distribution of isoprenoid biosynthesis pathways

Chia sẻ: Nguyen Thang | Ngày: | Loại File: PDF | Số trang:12

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An open reading frame (Acc. no. P50740) on theBacillus subtilis chromosome extending from bp 184 997–186 043 with similarity to theidi-2 gene ofStreptomycessp. CL190 specifying type II isopentenyl diphosphate isomerase was expressed in a recombinant Escherichia colistrain. The recombinant protein with a subunit mass of 39 kDa was purified to apparent homogeneity by column chromatog-raphy. The protein was shown to catalyse the conversion of dimethylallyl diphosphate into isopentenyl diphosphate and vice versa at rates of 0.23 and 0.63lmolÆmg )1 Æmin )1 , respectively, as diagnosed by 1 H spectroscopy. ...

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Nội dung Text: Báo cáo khoa học: Biochemical characterization of Bacillus subtilis type II isopentenyl diphosphate isomerase, and phylogenetic distribution of isoprenoid biosynthesis pathways

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