Chiral Nanozymes-Gold Nanoparticle-Based Transphosphorylation Catalysts Capable of Enantiomeric Discrimination
作者:Jack L.-Y. Chen、Cristian Pezzato、Paolo Scrimin、Leonard J. Prins
DOI:10.1002/chem.201600853
日期:2016.5.17
the spontaneous formation of chiral bimetallic catalytic sites that display different activities (kcat) towards the enantiomers of an RNA model substrate. Substrate selectivity is observed when the nanozyme is applied to the cleavage of the dinucleotides UpU, GpG, ApA, and CpC, and remarkable differences in reactivity are observed for the cleavage of the enantiomerically pure dinucleotide UpU.
首次证明了合成金属酶对RNA的对映选择性。含有手性Zn II结合头基的硫醇已在金纳米颗粒表面自组装。这导致手性双金属催化位点的自发形成,该手性双金属催化位点对RNA模型底物的对映异构体显示出不同的活性(k cat)。当将纳米酶应用于二核苷酸UpU,GpG,ApA和CpC的裂解时,观察到底物选择性,并且对映体纯的二核苷酸UpU的裂解观察到反应性的显着差异。