coenzyme A sodium salt;sodium salt of CoA;sodium;2-[3-[[(2R)-4-[[[(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-4-hydroxy-3-phosphonooxyoxolan-2-yl]methoxy-hydroxyphosphoryl]oxy-hydroxyphosphoryl]oxy-2-hydroxy-3,3-dimethylbutanoyl]amino]propanoylamino]ethanethiolate
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
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
Formation of an enolate intermediate is required for the reaction catalyzed by 3-hydroxyacyl-CoA dehydrogenase
作者:Xiaojun Liu、Guisheng Deng、Xiusheng Chu、Nan Li、Long Wu、Ding Li
DOI:10.1016/j.bmcl.2007.03.023
日期:2007.6
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.
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.