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Photoactivated peptides are modified natur … Photoactivated peptides are modified natural or synthetic peptides the functions of which can be activated with light. This can be done either irreversibly or in a reversible way. Caged peptides which contain photocleavable protecting groups belong to irreversibly activated peptides. Reversible activation/deactivation of peptide function are achieved by incorporation photo-controllable fragments (molecular photoswitches) in the side chains or in the backbone of peptide templates to get the photo-controlled peptides, which can reversibly change their structure upon irradiation with light of different wavelength. As the consequence, the properties, function and biological activity of the modified peptides can be controlled by light. Since light can be directed to specific areas, such peptides can be activated only at targeted sites. Azobenzenes, and diarylethenes can be used as the photoswitches. For therapeutic use, photoswitches with longer wavelengths (near-infrared, to penetrate tissue) or the use of two-photon excitation are required, coupled with improved methods for peptide delivery to live cells.ethods for peptide delivery to live cells.
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| rdfs:comment |
Photoactivated peptides are modified natur … Photoactivated peptides are modified natural or synthetic peptides the functions of which can be activated with light. This can be done either irreversibly or in a reversible way. Caged peptides which contain photocleavable protecting groups belong to irreversibly activated peptides. Reversible activation/deactivation of peptide function are achieved by incorporation photo-controllable fragments (molecular photoswitches) in the side chains or in the backbone of peptide templates to get the photo-controlled peptides, which can reversibly change their structure upon irradiation with light of different wavelength. As the consequence, the properties, function and biological activity of the modified peptides can be controlled by light. Since light can be directed to specific areas, such peptidbe directed to specific areas, such peptid
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Photoactivated peptide
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