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A new fluorescent peptidyl chemosensor for Cu 2+ ions with fluorescence resonance energy transfer (FRET) capabilities has been synthesized via Fmoc solid-phase peptide synthesis. The metal chelating unit, which is flanked by the fluorophores tryptophan (donor) and dansyl chloride (acceptor), consists of the amino acids glycine and aspartic acid (Gly-Gly-Asp-Gly-Gly-Asp-Gly-Gly-Asp-Gly-Gly-Asp-Gly-Gly)...
Short-chain peptides (two and seven residues) consisting of a glycine (Gly) attachment group and various combinations of cysteine (Cys) and/or aspartic acid (Asp) were synthesized by Fmoc solid phase peptide synthesis (SPPS) on Tentagel resin. One selected peptide was synthesized on controlled pore glass (CPG) for comparison. The objective was to evaluate metal binding capacities and selectivities...
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