C. Nat. Struct. Biol.2003, 10, 271−279.) The work herein has been designed to address the chemical viability of copper(II) within the tripeptide N2S2 ligand set. To this end, a series of CuN2S22− complexes, the resin-bound, O-Cu(CGC)2− (A) and free Cu(CGC)2− (B) complexes, as well as Cu(ema)2− (C) and Cu(emi)2− (D) dianions, have been characterized by UV−vis, electron paramagnetic resonance (EPR), and
乙酰辅酶A合酶A簇活性位点
金属肽Ni(Cysteine-Glycine-Cysteine) 2− , Ni(CGC) 2− 的发现促使许多采用M(N 2 S)的小分子模型的合成2 ) 络合物作为
金属
配体。体外研究表明,即使
铜存在于酶生长
培养基中,
镍也会结合到 N 2 S 2结合袋中,而
铜优先被吸收在近端部位,取代具有催化活性的
镍。(Darnault, C.; Volbeda, A.; Kim, EJ; Legrand, P.; Vernede, X.; Lindahl, PA; Fontecilla-Camps, JC Nat. Struct. Biol. 2003 , 10, 271−279.) 本文的工作旨在解决三肽 N 2 S 2
配体组中
铜 (II) 的
化学活性。为此,一系列 CuN 2 S 2 2−配合物、
树脂结合的O -Cu(CGC) 2− ( A ) 和游离 Cu(CGC) 2−