Repurposing the 3‐Isocyanobutanoic Acid Adenylation Enzyme SfaB for Versatile Amidation and Thioesterification
作者:Mengyi Zhu、Lijuan Wang、Jing He
DOI:10.1002/anie.202010042
日期:2021.1.25
molecules with novel skeletons, but also to identify the enzymes that catalyze diverse chemical reactions. Exploring the substrate promiscuity and catalytic mechanism of those biosynthetic enzymes facilitates the development of potential biocatalysts. SfaB is an acyladenylate‐forming enzyme that adenylates a unique building block, 3‐isocyanobutanoic acid, in the biosynthetic pathway of the diisonitrile
Screening and Engineering the Synthetic Potential of Carboxylating Reductases from Central Metabolism and Polyketide Biosynthesis
作者:Dominik M. Peter、Lennart Schada von Borzyskowski、Patrick Kiefer、Philipp Christen、Julia A. Vorholt、Tobias J. Erb
DOI:10.1002/anie.201505282
日期:2015.11.2
Carboxylating enoyl‐thioester reductases (ECRs) are a recently discovered class of enzymes. They catalyze the highly efficient addition of CO2 to the double bond of α,β‐unsaturated CoA‐thioesters and serve two biological functions. In primary metabolism of many bacteria they produce ethylmalonyl‐CoA during assimilation of the central metabolite acetyl‐CoA. In secondary metabolism they provide distinct
Hepatic enzymatic synthesis and hydrolysis of CoA esters of solvent-derived oxa acids
作者:Sree D. Panuganti、Jill M Penn、Kathleen H. Moore
DOI:10.1002/jbt.10063
日期:——
glycol-derived solvents are oxidized to xenobiotic alkoxyacetic acids (3-oxa acids) by hepatic enzymes. The toxicity of these ubiquitous solvents has been associated with their oxaacid metabolites. For many xenobiotic carboxylic acids, the toxicity is associated with the CoAester of the acid. In this study, related alkoxyacetic acids were evaluated as potential substrates for acyl-CoA synthetases
Identification of an α-Oxoamine Synthase and a One-Pot Two-Step Enzymatic Synthesis of α-Amino Ketones
作者:Ting Zhou、Du Gao、Jia-Xin Li、Min-Juan Xu、Jun Xu
DOI:10.1021/acs.orglett.0c03600
日期:2021.1.1
incorporation of l-glutamate to acyl-coenzyme A substrates. Combined with Alb29 and Mgr36 (an acyl-coenzyme A ligase), a one-pot enzymatic system was established to synthesize seven α-amino ketones. When these α-amino ketones were fed into the alb29 knockout strain Δalb29, respectively, the albogrisin analogs with different side chains were observed.
Alb29 是一种 α-氧代胺合酶,参与Streptomyces albogriseolus MGR072中的 albogrisin 生物合成,被表征并负责将l-谷氨酸掺入酰基辅酶 A 底物。结合Alb29和Mgr36(一种酰基辅酶A连接酶),建立了一锅法合成七个α-氨基酮。当这些α-氨基酮分别加入alb29敲除菌株Δalb29时,观察到具有不同侧链的albogrisin类似物。
Establishing a Toolkit for Precursor-Directed Polyketide Biosynthesis: Exploring Substrate Promiscuities of Acid-CoA Ligases
biosynthesized from acyl-CoA precursors by polyketide synthases. One of the limitations to combinatorial biosynthesis of polyketides has been the lack of a toolkit that describes the means of delivering novel acyl-CoA precursors necessary for polyketide biosynthesis. Using five acid-CoA ligases obtained from various plants and microorganisms, we biosynthesized an initial library of 79 acyl-CoA thioesters by screening