The enzyme, characterized from the bacterium Streptomyces rimosus, participates in the biosynthesis of tetracycline antibiotics. It can also catalyse EC 1.14.13.234, 12-dehydrotetracycline 5-monooxygenase.
The enzyme appears in viruses and cellular organisms
The enzyme, characterized from the bacterium Streptomyces rimosus, participates in the biosynthesis of tetracycline antibiotics. It can also catalyse EC 1.14.13.234, 12-dehydrotetracycline 5-monooxygenase.
Substrates: the enzyme catalyzes a hydroxylation of the anthracycline structure at position C-6 after biosynthesis of the polyketide backbone is completed, Biosynthesis of oxytetracycline, overview Products: product identification
Substrates: the enzyme catalyzes a hydroxylation of the anthracycline structure at position C-6 after biosynthesis of the polyketide backbone is completed, Biosynthesis of oxytetracycline, overview Products: product identification
a otcC disruption mutant strain of Streptomyces rimosus synthesizes a novel C-17 polyketide, the ability to make a 19-carbon backbone in the mutant strain is restored when the inactive mutant enzyme, with three essential glycine residues of the NADH-binding domain mutated by site-directed mutagenesis, is expressed in the disruption mutant strain, thus the quarternary structure of the enzyme is required, not only the its activity, in the synthase complex
a otcC disruption mutant strain of Streptomyces rimosus synthesizes a novel C-17 polyketide, the ability to make a 19-carbon backbone in the mutant strain is restored when the inactive mutant enzyme, with three essential glycine residues of the NADH-binding domain mutated by site-directed mutagenesis, is expressed in the disruption mutant strain, thus the quarternary structure of the enzyme is required, not only the its activity, in the synthase complex
recombinant overexpression of gene oxySin Saccharomyces cerevisiae, functional coexpression with heterologous dehydrotetracycline reductase CtcM, and the F420 reductase FNO. Biosynthesis of tetracycline is enabled by OxyS performing just one hydroxylation step in Saccharomyces cerevisiae despite its previous characterization as a double hydroxylase. This single hydroxylation enables the purification and structural characterization of a hypothetical intermediate in oxytetracycline biosynthesis that can explain structural differences between oxytetracycline and chlortetracycline. Using the alternative enzyme CtcM from the chlortetracycline pathway instead of OxyR yields in vitro an increased ratio of tetracycline to oxytetracycline. A unique cofactor to the last steps of the tetracyclines' biosynthesis that is not native to Saccharomyces cerevisiae is cofactor F420, a lactyl oligoglutamate phosphodiester derivative of 7,8-didemethyl-8-hydroxy-5-deazariboflavin (Fo). Fo is much more synthetically accessible than F420. Fo can replace F420 in tetracycline biosynthesis. Three F420 reductase candidates from Mycobacterium tuberculosis, Archaeoglobus fulgidus, and Streptomyces griseus are explored, and the enzyme from Archaeoglobus fulgidus is chosen. Method development and evaluation, method optimization, overview
gene oxyS, functional recombinant overexpression of C-terminally FLAG-tagged enzyme in Saccharomyces cerevisiae from plasmid pSP-G1 resulting in biosynthesis of dehydrotetracycline from anhydrotetracycline, functional coexpression with heterologous dehydrotetracycline reductase CtcM, and the F420 reductase FNO
biosynthesis of tetracycline from anhydrotetracycline in Saccharomyces cerevisiae heterologously expressing the anhydrotetracycline hydroxylase OxyS, the dehydrotetracycline reductase CtcM, and the F420 reductase FNO from three bacterial hosts. This biosynthesis of tetracycline is enabled by OxyS performing just one hydroxylation step in S. cerevisiae
biosynthesis of tetracycline from anhydrotetracycline in Saccharomyces cerevisiae heterologously expressing the anhydrotetracycline hydroxylase OxyS, the dehydrotetracycline reductase CtcM, and the F420 reductase FNO from three bacterial hosts. This biosynthesis of tetracycline is enabled by OxyS performing just one hydroxylation step in S. cerevisiae
Ablation of the otcC gene encoding a post-polyketide hydroxylase from the oxytetracyline biosynthetic pathway in Streptomyces rimosus results in novel polyketides with altered chain length