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Mant (2'(3')-O-(N-methylanthraniloyl)) labeled nucleotides have proven to be useful tools in the study of the kinetic mechanism of the myosin ATPase by fluorescence spectroscopy. The sensitivity of the mant fluorophore to its local environment also makes it suitable to investigate the exposure of bound nucleotides to solvent from collisional quenching measurements. Here we present the crystal structure...
Background Myosins are motors that use energy supplied by ATP to travel along actin filaments. The structure of myosin is known, but the actin-binding site is not well defined, and the mechanisms by which actin activates ATP hydrolysis by myosin, and myosin moves relative to the actin filament, developing force, are not fully understood. Previous phylogenetic analyses of the motor domain of myosins...
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