coenzyme A sodium salt;sodium salt of CoA;Coenzyme A xsodium salt;sodium;[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-4-hydroxy-2-[[hydroxy-[hydroxy-[(3R)-3-hydroxy-2,2-dimethyl-4-oxo-4-[[3-oxo-3-(2-sulfanylethylamino)propyl]amino]butoxy]phosphoryl]oxyphosphoryl]oxymethyl]oxolan-3-yl] hydrogen phosphate
Formation of an enolate intermediate is required for the reaction catalyzed by 3-hydroxyacyl-CoA dehydrogenase
摘要:
Fluorinated substrate analogs were synthesized and incubated with rat liver 3-hydroxyacyl-CoA dehydrogenase, which reveals that the formation of an enolate intermediate is required for the reaction catalyzed by the enzyme. (C) 2007 Elsevier Ltd. All rights reserved.
Spiropentylacetyl-CoA, A Mechanism-Based Inactivator of Acyl-CoA Dehydrogenases
作者:Ding Li、Hui-qiang Zhou、Srikanth Dakoji、Injae Shin、Eugene Oh、Hung-wen Liu
DOI:10.1021/ja9737634
日期:1998.3.1
However, recent studies of the inactivation of ACDs by a metabolite of hypoglycin A, (methylenecyclopropyl)acetyl-CoA (MCPA-CoA), led to an alternative mechanism in which the reducing equivalent is delivered from the initially formed α-anion to the bound FAD via a single electron transfer process. To further explore the observed mechanistic discrepancy, we have reexamined the inhibitory properties of
A Three Enzyme Pathway for 2-Amino-3-hydroxycyclopent-2-enone Formation and Incorporation in Natural Product Biosynthesis
作者:Wenjun Zhang、Megan L. Bolla、Daniel Kahne、Christopher T. Walsh
DOI:10.1021/ja1002845
日期:2010.5.12
A number of natural products contain a 2-amino-3-hydroxycyclopent-2-enone five membered ring, termed C(5)N, which is condensed via an amide linkage to a variety of polyketide-derived polyenoic acid scaffolds. Bacterial genome mining indicates three tandem ORFs that may be involved in C(5)N formation and subsequent installation in amide linkages. We show that the protein products of three tandem ORFs
Assessing the Balance between Protein−Protein Interactions and Enzyme−Substrate Interactions in the Channeling of Intermediates between Polyketide Synthase Modules
作者:Nicholas Wu、Stuart Y. Tsuji、David E. Cane、Chaitan Khosla
DOI:10.1021/ja010219t
日期:2001.7.1
reassess the steady-state kinetic parameters of individual DEBS modules when primed in a more "natural" channeling mode by the same panel of diketide substratesused earlier. Here we describe these assays and use them to quantify the kinetic benefit of linker-mediated substrate channeling in a modular PKS. This benefit can be substantial, especially for intrinsically poor substrates. Examples are presented
6-Deoxyerythronolide B 合酶 (DEBS) 是模块化聚酮化合物合酶 (PKS),可催化 6-deoxyerythronolide B (6-dEB)(抗生素红霉素的苷元前体)的生物合成。6-dEB 的生物合成证明了该多功能酶家族非凡的底物选择性和立体选择性。矛盾的是,DEBS 已被证明是一种有吸引力的组合生物合成支架,表明其组成模块也非常耐受非天然底物。通过用一组激活为 N-乙酰半胱胺 (NAC) 硫酯的双酮化合物询问 DEBS 的单个模块,最近表明单个模块具有区分某些非对映异构双酮化合物的显着能力。然而,由于在这些研究中使用游离 NAC 硫酯作为底物,模块由扩散过程引发,这排除了共价、底物通道机制的参与,通过该机制,酶结合的中间体在多模块 PKS 中直接从一个模块转移到下一个模块。最近的证据表明蛋白质-蛋白质相互作用在底物通道机制中起关键作用,这促使我们开发新的检测方法来重新评估单个
Cyclobutaneacetyl-CoA: A Janus-Faced Substrate for Acyl-CoA Dehydrogenases
作者:Injae Shin、Ding Li、Donald F. Becker、Marian T. Stankovich、Hung-wen Liu
DOI:10.1021/ja00098a068
日期:1994.9
Oct-2-en-4-ynoyl-CoA as a Specific Inhibitor of Acyl-CoA Oxidase
作者:Jia Zeng、Long Wu、Xiaojian Zhang、Yuandong Liu、Guisheng Deng、Ding Li
DOI:10.1021/ol801571n
日期:2008.10.2
Oct-2-en-4-ynoyl-CoA was found to be a specific inhibitor of acyl-CoA oxidase in fatty acid oxidation in peroxisomes that has no inhibitory effect on acyl-CoA dehydrogenase in mitochondria. The inhibition reaction involves a nucleophilic attack of Glu421 to the delta carbon of the inhibitor. The result indicates that acyl-CoA oxidase and acyl-CoA dehydrogenase have certain differences in active-site structure, which makes it possible to control fatty acid oxidation selectively in either mitochondria or peroxisomes with different enzyme inhibitors.