Fluorescent Chemosensors for Divalent Zinc Based on Zinc Finger Domains. Enhanced Oxidative Stability, Metal Binding Affinity, and Structural and Functional Characterization

作者: Grant K. Walkup , Barbara Imperiali

DOI: 10.1021/JA9642121

关键词:

摘要: The design, synthesis, and characterization of a family peptides modeled after the zinc finger domains, which has led to production fluorescent peptidyl sensor for divalent with enhanced oxidative stability, are reported. chemosensor design comprises synthetic template covalently attached reporter is sensitive metal-induced conformational changes in polypeptide construct. modular approach employed construction these chemosensors allows independent modification metal coordination sphere group. structural, fluorescence, binding properties effects integrating various environment fluorophores, 4-(dimethylamino)benzamide, 5-(dimethylamino)naphthalenesulfonamide, 3-carboxamidocoumarin, described. Manipulation ligand sphere, by removal one pair thiolate ligands, was undertaken enhance stability ...

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