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- W4289077544 abstract "ABSTRACT Kinesin-driven organelle transport is crucial for neuron development and maintenance, yet the mechanisms by which kinesins specifically bind their organelle cargoes remain undefined. In contrast to other transport kinesins, the neuronal function and specific organelle adaptors of heterodimeric Kinesin-2 family members KIF3AB and KIF3AC remain unknown. We developed a novel microscopy-based assay to define protein–protein interactions in intact neurons. The experiments found that KIF3AB and KIF3AC both bind KAP. These interactions are mediated by the distal C-terminal tail regions and not the coiled-coil domain. We used live-cell imaging in cultured hippocampal neurons to define the localization and trafficking parameters of KIF3AB and KIF3AC organelle populations. We discovered that KIF3AB/KAP and KIF3AC/KAP bind the same organelle populations and defined their transport parameters in axons and dendrites. The results also show that ∼12% of KIF3 organelles contain the RNA binding protein, adenomatous polyposis coli. These data point towards a model in which KIF3AB and KIF3AC use KAP as their neuronal organelle adaptor and that these kinesins mediate transport of a range of organelles." @default.
- W4289077544 created "2022-08-01" @default.
- W4289077544 creator A5025092515 @default.
- W4289077544 creator A5042842512 @default.
- W4289077544 creator A5077199990 @default.
- W4289077544 creator A5078581638 @default.
- W4289077544 date "2022-07-31" @default.
- W4289077544 modified "2023-09-23" @default.
- W4289077544 title "KAP is the neuronal organelle adaptor for Kinesin-2 KIF3AB and KIF3AC" @default.
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