Mechanism of kinesin-1 activation by cargo receptor

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Kinesin-1 anterogradely transports vesicles containing cargo proteins when a prptein-protein interaction activates it from an inhibited state. The C-terminal cytoplasmic region of Alcadein interacts with the kinesin light-chain KLC tetratricopeptide repeat(TPR) region, activating kinesin-1 association with vesicles and anterograde transport. Only 10 amino acids WD motif was enough to activate kinesin-1 motor. This mechanism contributes to explain how kinesin-1 can organize the transport of a wide variety of cargo molecules.