Abstract:The ATP-dependent motility of the kinesin-related non claret disjunctional (ncd) mechanoenzyme was observed in an in vitro bead motility assay using optical tweezers in combination with a new two-dimensional displacement detection method. The detection technique is based on observing the far-field interference pattern formed in the back focal plane (BFP) of the microscope condenser by the illuminating laser focus and the light scattered from the trapped dielectric bead. The ability to observe the two-dimension… Show more
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