cyclohex-2-ene-1-carboxyl-CoA | 6198-39-6

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: cyclohex-2-ene-1-carboxyl-CoA
• 英文别名: 2-monoenoyl-CoA；S-[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]ethyl] cyclohex-2-ene-1-carbothioate
• CAS: 6198-39-6
• 化学式: C₂₈H₄₄N₇O₁₇P₃S
• 分子量: 875.681
• InChiKey: OXFBBNPRTRCOFE-CRVKRRNDSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -3.9
• 重原子数：
  56
• 可旋转键数：
  21
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.64
• 拓扑面积：
  389
• 氢给体数：
  9
• 氢受体数：
  22

反应信息

• 作为产物：
  描述：

  [(2R,3R,4R,5R)-5-(6-氨基嘌呤-9-基)-2-[[[[3-[2-(2-苯甲酰硫乙基氨基甲酰)乙基氨基甲酰]-3-羟基-2,2-二甲基-丙氧基]-羟基-磷酰]氧基-羟基-磷酰]氧基甲基]-4-羟基-四氢呋喃-3-基]氧基膦酸 在 3-吗啉丙磺酸 、 titanium(III) citrate 、 7,8-dihydro-2,12-dimethyl-6H-dipyrido[1,2-a:2',1'-c][1,4]diazepinediium dibromide 、 sodium chloride 、 potassium hydroxide 、 magnesium chloride 作用下， 反应 1.07h， 生成 环己烷羧基-辅酶A 、 cyclohex-2-ene-1-carboxyl-CoA
  参考文献：
  名称：

  Reversible Biological Birch Reduction at an Extremely Low Redox Potential

  摘要：

  The Birch reduction of aromatic rings to cyclohexadiene compounds is widely used in chemical synthesis and requires solvated electrons, the most potent reductants known in organic chemistry. Benzoyl-coenzyme A (CoA) reductases (BCR) are key enzymes in the anaerobic bacterial degradation of aromatic compounds and catalyze an analogous reaction under physiological conditions. Class I BCRs are FeS enzymes and couple the reductive dearomatization of benzoyl-CoA to cyclohexa-1,5-diene-1-carboxyl-CoA (dienoyl-CoA) to a stoichiometric ATP hydrolysis. Here, we report on a tungsten-containing class II BCR from Geobacter metallireducens that catalyzed the fully reversible, ATP-independent dearomatization of benzoyl-CoA to dienoyl-CoA. BCR additionally catalyzed the disproportionation of dienoyl-CoA to benzoyl-CoA/monoenoyl-CoA and the four- and six-electron reduction of benzoyl-CoA in the presence of a reduced low-potential bridged 2,2'-bipyridyl redox dye. Reversible redox titration experiments in the presence of this redox dye revealed a midpoint potential of E-0'= -622 mV for the benzoyl-CoA/dienoyl-CoA couple, which is far below the values of other known reversible substrate/product redox couples in enzymology. This work demonstrates the efficiency of reversible metalloenzyme catalysis, which in chemical synthesis can only be achieved under essentially irreversible conditions.

  DOI：

  10.1021/ja103448u

文献信息

• Reversible Biological Birch Reduction at an Extremely Low Redox Potential
  作者：Johannes W. Kung、Sven Baumann、Martin von Bergen、Michael Müller、Peter-Leon Hagedoorn、Wilfred R. Hagen、Matthias Boll

  DOI：10.1021/ja103448u

  日期：2010.7.21

  The Birch reduction of aromatic rings to cyclohexadiene compounds is widely used in chemical synthesis and requires solvated electrons, the most potent reductants known in organic chemistry. Benzoyl-coenzyme A (CoA) reductases (BCR) are key enzymes in the anaerobic bacterial degradation of aromatic compounds and catalyze an analogous reaction under physiological conditions. Class I BCRs are FeS enzymes and couple the reductive dearomatization of benzoyl-CoA to cyclohexa-1,5-diene-1-carboxyl-CoA (dienoyl-CoA) to a stoichiometric ATP hydrolysis. Here, we report on a tungsten-containing class II BCR from Geobacter metallireducens that catalyzed the fully reversible, ATP-independent dearomatization of benzoyl-CoA to dienoyl-CoA. BCR additionally catalyzed the disproportionation of dienoyl-CoA to benzoyl-CoA/monoenoyl-CoA and the four- and six-electron reduction of benzoyl-CoA in the presence of a reduced low-potential bridged 2,2'-bipyridyl redox dye. Reversible redox titration experiments in the presence of this redox dye revealed a midpoint potential of E-0'= -622 mV for the benzoyl-CoA/dienoyl-CoA couple, which is far below the values of other known reversible substrate/product redox couples in enzymology. This work demonstrates the efficiency of reversible metalloenzyme catalysis, which in chemical synthesis can only be achieved under essentially irreversible conditions.