Journal
ORGANIC & BIOMOLECULAR CHEMISTRY
Volume 5, Issue 13, Pages 2040-2045Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/b705704k
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A new bifunctional fluorescent label, BRos, was synthesised in order to monitor protein dynamics using fluorescence microscopy, and the photophysical properties were compared with those of bifunctionalised rhodamine, BRho. In a labelling experiment with a model peptide of troponin C, which regulates muscle contraction and relaxation, it was found that BRos was bound to the peptide through two linkages and provided a homogeneous compound, whereas BRho gave a pair of diastereomers having different physical properties in NMR and HPLC analyses.
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