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Amorpha-4,11-diene synthase catalyses the first probable step in artemisinin biosynthesis.
The endoperoxide sesquiterpene lactone artemisinin and its derivatives are a promising new group of drugs against malaria. Artemisinin is a constituent of the annual herb Artemisia annua L. So farExpand
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Cyanopeptolins, new depsipeptides from the cyanobacterium Microcystis sp. PCC 7806.
Four depsipeptides (peptide lactones), called cyanopeptolins A, B, C and D, have been isolated from the cyanobacterium Microcystis sp. PCC 7806. They possess identical structures consisting of cyclicExpand
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The pathogen causing Dutch elm disease makes host trees attract insect vectors
Dutch elm disease is caused by the fungal pathogen Ophiostoma novo-ulmi which is transmitted by the native elm bark beetle, Hylurgopinus rufipes. We have found that four semiochemicals (theExpand
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Stoffwechselprodukte von Mikroorganismen. 98. Mitteilung. Phosphinothricin und Phosphinothricyl-Alanyl-Alanin
From cultures of Streptomyces viridochromogenes a new antibiotic, phosphinothricylalanyl-alanine, has been isolated. The new amino acid phosphinothricin is 2-amino-4-methyl-phosphino-butyric acid,Expand
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Biosynthesis of (+)- and (-)-Germacrene D in Solidago canadensis: Isolation and Characterization of Two Enantioselective Germacrene D Synthases.
Two different enantioselective sesquiterpene synthases catalyze the biosynthesis of the enantiomers (+)- and (-)-germacrene D (1 a and 1 b, respectively) in the plant Solidago canadensis, from whichExpand
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Evidence for the Existence of a Sulphur Oxygenase in Sulfolobus brierleyi
Summary: A sulphur-oxidizing enzyme was purified to homogeneity from cell-free extracts of mixotrophically grown cells of sulfolobus brierleyi. The enzyme catalysed the oxidation of elemental sulphurExpand
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Enantiomeric specificity of methylsulfonyl-PCBs and distribution of bis(4-chlorophenyl) sulfone, PCB, and DDE methyl sulfones in grey seal tissues.
PCB methyl sulfones (MeSO2-PCBs) are lipophilic PCB metabolites of which five of the environmentally relevant meta/para pairs are chiral (i.e., exist as atropisomeric pairs). Methylsulfonyl-DDEExpand
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