Dess–Martin periodinane oxidative rearrangement for preparation of α-keto thioesters
作者:Randy Sanichar、Ciaran Carroll、Ryan Kimmis、Bela Reiz、John C. Vederas
DOI:10.1039/c7ob02959d
日期:——
Dess–Martin Periodinane (DMP) mediated oxidative rearrangement reaction was uncovered. The reaction proceeds via oxidation of a β-hydroxy thioester to a β-keto thioester, followed by an α-hydroxylation and then further oxidation to form a vicinal thioester tricarbonyl. This product then rearranges, extruding CO2, to form an α-keto product. The mechanism of the rearrangement was elucidated using 13C labelling
identify a set of µM inhibitors, with the most potent representative (1) demonstrating activity against six FabG-orthologues. A co-crystal structure with FabG from A. baumannii (PDB:6T65) confirms inhibitorbinding at an allostericsite located in the subunit interface, as previously demonstrated for other sub-µM inhibitors of FabG from P. aeruginosa. We show that inhibitorbinding distorts the oligomerization
The substrate scope of dehydratases in antibiotic biosynthesis and their application in kinetic resolutions
作者:Zhiyong Yin、Daniel Bär、Bertolt Gust、Jeroen S. Dickschat
DOI:10.1039/d2ob01879a
日期:——
The dehydratase BorDH2 from borrelidin biosynthesis was found to have a wide substrate tolerance in the dehydration of 3D alcohols and was applied in kinetic resolutions.
SCHWAB J. M.; HABIB ASIF; KLASSEN J. B., J. AMER. CHEM. SOC., 108,(1986) N 17, 5304-5308
作者:SCHWAB J. M.、 HABIB ASIF、 KLASSEN J. B.
DOI:——
日期:——
Characterization of FabG and FabI of the<i>Streptomyces coelicolor</i>Dissociated Fatty Acid Synthase
作者:Renu Singh、Kevin A. Reynolds
DOI:10.1002/cbic.201402670
日期:2015.3.2
Functional crosstalk: β‐Ketoacyl‐acyl carrier protein (ACP; FabG) and enoyl‐ACP reductase (FabI) from Streptomyces coelicolor were identified and characterized. Kinetic analysis demonstrated that these enzymes process straight and branched‐chain substrates along with the ACPs from both fattyacid and undecylprodiginine biosynthetic pathways. This relaxed substrate specificity allow these enzymes to