鉄化合物の構造予測と発ガン性

  • 阿部 啓太
    和洋国府台女子高等学校,〒272-8533千葉県市川市国府台2-3-1
  • 﨑山 博史
    山形大学理学部物質生命化学科,〒990-8560山形市小白川町1-4-12
  • 西田 雄三
    金沢医科大学,〒920-0265 石川県河北郡内灘町大学1-1

書誌事項

タイトル別名
  • Structural Analysis of Iron(III) Complexes Relevant to Carcinogenicity

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説明

Some iron(III) complexes, including [Fe2(μ-O)(nta)2(H2O)2]2– and [Fe2(μ-O)(ida)2(H2O)4], are considered to be significant carcinogens to cause renal injuries from the result of previous animal experiments. On the other hand, similar iron(III) complex [Fe2(μ-O)(pac)2(H2O)2] is not considered to be a carcinogen. In order to clarify the differences in carcinogenicity, conformational analyses have been conducted for four dinuclear iron(III) complexes, [Fe2(μ-O)(nta)2(H2O)2]2–, [Fe2(μ-O)(edda)2(H2O)2], [Fe2(μ-O)(ida)2(H2O)4], and [Fe2(μ-O)(pac)2(H2O)2], where nitrilotriacetate [(nta)3–], ethylenediamine-N,N'-diacetate [(edda)2–], iminodiacetate [(ida)2–], and N-(2-pyridylmethyl)iminodiacetate [(pac)2–] are the chelating ligands (chelators). Based on the DFT computation, two-point interaction with hydrogen peroxide or α-helix was found to be possible for carcinogenic iron(III) complexes, [Fe2(μ-O)(nta)2(H2O)2]2– and [Fe2(μ-O)(ida)2(H2O)4], whereas the interaction was not found to be possible for non-carcinogenic iron(III) complex, [Fe2(μ-O)(pac)2(H2O)2].

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