5 rezultatet
In the biosynthesis of tropane alkaloids, two tropinone reductases (TRs) catalyze reduction of tropinone to different stereoisomers, tropine and pseudotropine. Two TRs from Hyoscyamus niger have 64% of identical amino acids and hence a common evolutionary origin. In this study, genomic clones of TRs
Tropinone is an alkamine intermediate at the branch point of biosynthetic pathways leading to various tropane alkaloids. Two stereospecifically distinct NADPH-dependent oxidoreductases, TR-I and TR-II, which, respectively, reduce tropinone to 3alpha-hydroxytropane (tropine) and 3beta-hydroxytropane
Tropane alkaloids are used medicinally as anticholinergic agents with increasing market demand, so the improvement and production of active components from medicinal plants using molecular biotechnology show great potential for applications that should benefit human healthcare. Two tropinone
In the plant species that produce tropane alkaloids, two tropinone reductases (TRs) catalyze the stereospecific reductions of the 3-carbonyl group of tropinone. This reduction is a key branch point that determines the metabolite flow into the separate alkaloid groups, each with different