2-苯基亚硒酰基乙胺 | 106929-78-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 2-苯基亚硒酰基乙胺
• 英文名称: Phenyl 2-aminoethyl selenoxide
• 英文别名: 2-phenylseleninylethanamine
• CAS: 106929-78-6
• 化学式: C₈H₁₁NOSe
• 分子量: 216.141
• InChiKey: BHCAZEJGPACTOI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.27
• 重原子数：
  11
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  43.1
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-苯基亚硒酰基乙胺 在 MES buffer 、 维生素 C 作用下， 生成 苯基-2-氨基乙基硒醚
  参考文献：
  名称：

  Selenium Redox Cycling in the Protective Effects of Organoselenides against Oxidant-Induced DNA Damage

  摘要：

  The biological role of selenium is a subject of intense current interest, and the antioxidant activity of selenoenzymes is now known to be dependent upon redox cycling of selenium within their active sites. Exogenously supplied or metabolically generated organoselenium compounds, capable of propagating a selenium redox cycle, might therefore supplement natural cellular defenses against the oxidizing agents generated during metabolism. We now report evidence that selenium redox cycling can enhance the protective effects of organoselenium compounds against oxidant-induced DNA damage. Phenylaminoethyl selenides were found to protect plasmid DNA from peroxynitrite-mediated damage by scavenging this powerful cellular oxidant and forming phenylaminoethyl selenoxides as the sole selenium-containing products. The redox properties of these organoselenoxide compounds were investigated, and the first redox potentials of selenoxides in the literature are reported here. Rate constants were determined for the reactions of the selenoxides with cellular reductants such as glutathione (GSH). These kinetic data were then used in a MatLab simulation, which showed the feasibility of selenium redox cycling by GSH in the presence of the cellular oxidant, peroxynitrite. Experiments were then carried out in which peroxynitrite-mediated plasmid DNA nick formation in the presence or absence of organoselenium compounds and GSH was monitored. The results demonstrate that GSH-mediated redox cycling of selenium enhances the protective effects of phenylaminoethyl selenides against peroxynitrite-induced DNA damage.

  DOI：

  10.1021/ja037294j

文献信息

• Selenium Redox Cycling in the Protective Effects of Organoselenides against Oxidant-Induced DNA Damage
  作者：Veronica De Silva、Michelle M. Woznichak、Kristi L. Burns、Kathryn B. Grant、Sheldon W. May

  DOI：10.1021/ja037294j

  日期：2004.3.3

  The biological role of selenium is a subject of intense current interest, and the antioxidant activity of selenoenzymes is now known to be dependent upon redox cycling of selenium within their active sites. Exogenously supplied or metabolically generated organoselenium compounds, capable of propagating a selenium redox cycle, might therefore supplement natural cellular defenses against the oxidizing agents generated during metabolism. We now report evidence that selenium redox cycling can enhance the protective effects of organoselenium compounds against oxidant-induced DNA damage. Phenylaminoethyl selenides were found to protect plasmid DNA from peroxynitrite-mediated damage by scavenging this powerful cellular oxidant and forming phenylaminoethyl selenoxides as the sole selenium-containing products. The redox properties of these organoselenoxide compounds were investigated, and the first redox potentials of selenoxides in the literature are reported here. Rate constants were determined for the reactions of the selenoxides with cellular reductants such as glutathione (GSH). These kinetic data were then used in a MatLab simulation, which showed the feasibility of selenium redox cycling by GSH in the presence of the cellular oxidant, peroxynitrite. Experiments were then carried out in which peroxynitrite-mediated plasmid DNA nick formation in the presence or absence of organoselenium compounds and GSH was monitored. The results demonstrate that GSH-mediated redox cycling of selenium enhances the protective effects of phenylaminoethyl selenides against peroxynitrite-induced DNA damage.