IFT54 directly interacts with kinesin-II and IFT dynein to regulate anterograde intraflagellar transport

ABSTRACT: The intraflagellar transport (IFT) machinery consists of the anterograde motor kinesin-II, the retrograde motor IFT dynein and the IFT-A and -B complexes. However, the interaction among IFT motors and IFT complexes during IFT remains elusive. Here, we show that the IFT-B protein IFT54 interacts with both kinesin-II and IFT dynein and regulates anterograde IFT. Deletion of residues 342-356 of Chlamydomonas IFT54 resulted in diminished anterograde traffic of IFT and accumulation of IFT motors and complexes in the proximal region of cilia. IFT54 directly interacted with kinesin-II and this interaction was strengthened for the IFT54?342-356 mutant in vitro and in vivo. The deletion of residues 261-275 of IFT54 reduced ciliary entry and anterograde traffic of IFT dynein with accumulation of IFT

SUBMITTER: Dr. Xin Zhu 

PROVIDER: S-SCDT-EMBOJ-2020-105781P | biostudies-other |

REPOSITORIES: biostudies-other