Article
Alternate fast and slow stepping of a heterodimeric kinesin molecule.
Nature cell biology - 1 Dec 2003
Kaseda Kuniyoshi, Higuchi Hideo, Hirose Keiko
Abstract excerpt
A conventional kinesin molecule travels continuously along a microtubule in discrete 8-nm steps. This processive movement is generally explained by models in which the two identical heads of a kinesin move in a 'hand-over-hand' manner. Here, we show that a single heterodimeric kinesin molecule (in which one of the two heads is mutated in a nucleotide-binding site) exhibits fast and slow (with the dwell time at...
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