Isolation of Pyrrolocins A–C: cis- and trans-Decalin Tetramic Acid Antibiotics from an Endophytic Fungal-Derived Pathway
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چکیده
منابع مشابه
Isolation of Pyrrolocins A–C: cis- and trans-Decalin Tetramic Acid Antibiotics from an Endophytic Fungal-Derived Pathway
Three new decalin-type tetramic acid analogues, pyrrolocins A (1), B (2), and C (3), were defined as products of a metabolic pathway from a fern endophyte, NRRL 50135, from Papua New Guinea. NRRL 50135 initially produced 1 but ceased its production before chemical or biological evaluation could be completed. Upon transfer of the biosynthetic pathway to a model host, 1-3 were produced. All three...
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1. The metabolism of cis- and trans-decalin in the rabbit has been investigated. 2. Both hydrocarbons were oxidized to racemic secondary alcohols and excreted as ether glucuronides in amounts equal to about 60% of the dose administered. The principal glucuronides were isolated as triacetyl methyl esters and as sodium salts. 3. cis-Decalin gave rise mainly to (+/-)-cis-cis-2-decalol, together wi...
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Regulatory divergence is likely a major driving force in evolution. Comparative genomics is being increasingly used to infer the evolution of gene regulation. Ascomycota fungi are uniquely suited among eukaryotes for regulatory evolution studies, due to broad phylogenetic scope, many sequenced genomes, and tractability of genomic analysis. Here we review recent advances in the identification of...
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Pseudomonas oleovorans contains an isomerase which catalyzes the cis-trans conversion of the abundant unsaturated membrane fatty acids 9-cis-hexadecenoic acid (palmitoleic acid) and 11-cis-octadecenoic acid (vaccenic acid). We purified the isomerase from the periplasmic fraction of Pseudomonas oleovorans. The molecular mass of the enzyme was estimated to be 80 kDa under denaturing conditions an...
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Conjugated linoleic acids (CLA) are a group of linoleic acid isomers having double bonds in conjugated position, i. e. the double bonds are separated by one single bond. Two of the isomers: cis-9, trans-11 (c9, t11) and trans-10, cis-12 (t10, c12) CLA, have been shown to have biologically interesting properties. The c9, t11 CLA has been reported to have anticancer, antidiabetic and anti-inflamm...
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ژورنال
عنوان ژورنال: Journal of Natural Products
سال: 2014
ISSN: 0163-3864,1520-6025
DOI: 10.1021/np500617u