Role and substrate specificity of the Streptomyces coelicolor RedH enzyme in undecylprodiginine biosynthesis
作者:Stuart W. Haynes、Paulina K. Sydor、Anna E. Stanley、Lijiang Song、Gregory L. Challis
DOI:10.1039/b801677a
日期:——
The function of RedH from Streptomyces coelicolor as an enzyme that catalyses the condensation of 4-methoxy-2,2′-bipyrrole-5-carboxaldehyde (MBC) and 2-undecylpyrrole to form the natural product undecylprodiginine has been experimentally proven, and the substrate specificity of RedH has been probed in vivo by examining its ability to condense chemically-synthesised MBC analogues with 2-undecylpyrrole to afford undecylprodiginine analogues.
Concise Synthesis of Key 3-Polyenoyl-5-methylenefuran-2,4-dione Putative Intermediates in Quartromicin Biosynthesis
作者:Gregory Challis、Laura Montgomery
DOI:10.1055/s-2008-1078247
日期:2008.8
Concise syntheses of two 3-polyenoyl-5-methylenefuran-2,4-diones, which are proposed to be key intermediates in the biosynthesis of the unusual 32-membered carbocycle-containing quartromicin antibiotics, are reported involving acylation of 3-lithio-4-methoxy-5-methylene-5H-furan-2-one as a key step.
ABSTRACT Roseophilin is an alkaloid structurally related to prodiginines . The intriguing pharmacological properties of these derivatives have prompted us to prepare synthetic compounds 1–3 inspired by their structure and to explore their transmembrane anion transport activity. The methoxyfuran heterocycle impacts the anionophoric activity of the compounds as a result of the reduced hydrogen-bonding ability
Expanding the antibacterial selectivity of polyether ionophore antibiotics through diversity-focused semisynthesis
作者:Shaoquan Lin、Han Liu、Esben B. Svenningsen、Malene Wollesen、Kristian M. Jacobsen、Frederikke D. Andersen、Jaime Moyano-Villameriel、Christine N. Pedersen、Peter Nørby、Thomas Tørring、Thomas B. Poulsen
DOI:10.1038/s41557-020-00601-1
日期:2021.1
Polyetherionophores are complex natural products capable of transporting cations across biological membranes. Many polyetherionophores possess potent antimicrobial activity and a few selected compounds have the ability to target aggressive cancer cells. Nevertheless, ionophore function is believed to be associated with idiosyncratic cellular toxicity and, consequently, human clinical development
The Role of Cytochrome P450 AbyV in the Final Stages of Abyssomicin C Biosynthesis
作者:Andrew J. Devine、Alice E. Parnell、Catherine R. Back、Nicholas R. Lees、Samuel T. Johns、Ainul Z. Zulkepli、Rob Barringer、Katja Zorn、James E. M. Stach、Matthew P. Crump、Martin A. Hayes、Marc W. van der Kamp、Paul R. Race、Christine L. Willis
DOI:10.1002/anie.202213053
日期:2023.1.16
The cytochrome P450 enzyme AbyV catalyses a key epoxidation in the final stages of the biosynthesis of the spirotetronate antibiotic abyssomicin C. Combining structural and computational data with a 13C labelling strategy was found to be a powerful approach to interrogate the biotransformation and determine the precise function of the enzyme.
细胞色素 P450 酶 AbyV 在螺菌素抗生素 abyssomicin C 生物合成的最后阶段催化关键环氧化。将结构和计算数据与13 C 标记策略相结合被发现是一种研究生物转化和确定精确功能的有效方法的酶。