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The uridyl peptide antibiotics (UPAs), of which pacidamycin is a member, have a clinically unexploited mode of action and an unusual assembly. Perhaps the most striking feature of these molecules is the biosynthetically unique 3′‐deoxyuridine that they share. This moiety is generated by an unusual, small and monomeric dehydratase, Pac13, which catalyses the dehydration of uridine‐5′‐aldehyde. Here...
Das volle Programm: Der kürzlich entdeckte Thiol‐Cofaktor Bacillithiol (BSH), seine Biosynthesevorstufe und sein symmetrisches Disulfid wurden auf zwei Arten hergestellt. Das Fosfomycinresistenzprotein (FosB) zeigt BSH‐S‐Transferaseaktivität mit einer starken Bevorzugung von BSH gegenüber L‐Cystein als Thiolsubstrat.
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