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Direct Observation of Structure Transition of Donor-Acceptor Labeled Peptides: Temperature Dependence of Fluorescence Quenching Kinetics

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From the temperature dependence of fluorescence quenching kinetics, a novel temperaturesensitive structure transition was discovered in a donor-acceptor labeled peptides. Perfect agreement of related abrupt changes in a1,t1 andt2 gives strong support for the existence of this structure transition, which suggests it is possible to develop peptides that can be rapidly and reversibly switched between two structure states in response to temperature shift.

Keywords: electron transfer; fluorescence quenching; labeled peptides; molecular switches; peptides; structure transition

Document Type: Review Article


Publication date: 2003-02-01

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  • Protein & Peptide Letters publishes short papers in all important aspects of protein and peptide research, including structural studies, recombinant expression, function, synthesis, enzymology, immunology, molecular modeling, drug design etc. Manuscripts must have a significant element of novelty, timeliness and urgency that merit rapid publication. Reports of crystallisation, and preliminary structure determinations of biologically important proteins are acceptable. Purely theoretical papers are also acceptable provided they provide new insight into the principles of protein/peptide structure and function.
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