Punt, Philip M. published the artcileTailored Transition-Metal Coordination Environments in Imidazole-Modified DNA G-Quadruplexes, Computed Properties of 57044-25-4, the publication is Chemistry – A European Journal (2019), 25(61), 13987-13993, database is CAplus and MEDLINE.
Two types of imidazole ligands were introduced both at the end of tetramol. and into the loop region of unimol. DNA G-quadruplexes. The modified oligonucleotides were shown to complex a range of different transition-metal cations including NiII, CuII, ZnII and CoII, as indicated by UV/Vis absorption spectroscopy and ion mobility mass spectrometry. Mol. dynamics simulations were performed to obtain structural insight into the investigated systems. Variation of ligand number and position in the loop region of unimol. sequences derived from the human telomer region (htel) allows for a controlled design of distinct coordination environments with fine-tuned metal affinities. It is shown that CuII, which is typically square-planar coordinated, has a higher affinity for systems offering four ligands, whereas NiII prefers G-quadruplexes with six ligands. Likewise, the positioning of ligands in a square-planar vs. tetrahedral fashion affects binding affinities of CuII and ZnII cations, resp. Gaining control over ligand arrangement patterns will spur the rational development of transition-metal-modified DNAzymes. Furthermore, this method is suited to combine different types of ligands, for example, those typically found in metalloenzymes, inside a single DNA architecture.
Chemistry – A European Journal published new progress about 57044-25-4. 57044-25-4 belongs to alcohols-buliding-blocks, auxiliary class Epoxides,Chiral,Aliphatic hydrocarbon chain,Alcohol, name is (R)-Oxiran-2-ylmethanol, and the molecular formula is C3H6O2, Computed Properties of 57044-25-4.
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