KIF1A is the primary anterograde motor protein required for the axonal transport of dense-core vesicles in cultured hippocampal neurons

► Dense core vesicles and KIF1A co-transport in a bidirectional manner in axons. ► Knockdown of KIF1A reduces bidirectional axonal transport of dense-core vesicles. ► Dense-core vesicles likely contain a coordinated motor complex.