Kinesin-1 autoinhibition facilitates the initiation of dynein cargo transport.
Kinesin-1 autoinhibition facilitates the initiation of dynein cargo transport.
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DOI:
10.1083/jcb.202205136
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发表时间:
2023-03-06
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影响因子:
--
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A screen for mutants defective in dynein-mediated early endosome transport identified a kinesin-1 mutation that disrupts kinesin-1 autoinhibition. Kinesin-1 autoinhibition is not needed for driving dynein accumulation at microtubule plus ends, but it affects the initiation of dynein-mediated cargo transport. The functional significance of Kinesin-1 autoinhibition has been unclear. Kinesin-1 transports multiple cargoes including cytoplasmic dynein to microtubule plus ends. From a genetic screen for Aspergillus mutants defective in dynein-mediated early endosome transport, we identified a kinesin-1 mutation kinAK895* at the C-terminal IAK motif involved in autoinhibition. The kinA∆IAK and kinAK895E mutants exhibited a similar defect in dynein-mediated early endosome transport, verifying the importance of kinesin-1 autoinhibition in dynein-mediated transport. Kinesin-1 autoinhibition is not critical for dynein accumulation at microtubule plus ends or for the secretory vesicle cargoes of kinesin-1 to reach the hyphal tip. However, it facilitates dynein to initiate early endosome transport. This is unrelated to a direct competition between dynein and kinesin-1 on early endosomes because kinesin-3 rather than kinesin-1 drives the plus-end-directed early endosome movement. This effect of kinesin-1 autoinhibition on dynein-mediated early endosome transport is related to cargo adapter-mediated dynein activation but at a step beyond the switching of dynein from its autoinhibited conformation.
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DOI:
10.1093/brain/awx370
发表时间:
2018-03-01
期刊:
Brain : a journal of neurology
影响因子:
--
作者:
Brenner D;Yilmaz R;Müller K;Grehl T;Petri S;Meyer T;Grosskreutz J;Weydt P;Ruf W;Neuwirth C;Weber M;Pinto S;Claeys KG;Schrank B;Jordan B;Knehr A;Günther K;Hübers A;Zeller D;Kubisch C;Jablonka S;Sendtner M;Klopstock T;de Carvalho M;Sperfeld A;Borck G;Volk AE;Dorst J;Weis J;Otto M;Schuster J;Del Tredici K;Braak H;Danzer KM;Freischmidt A;Meitinger T;Strom TM;Ludolph AC;Andersen PM;Weishaupt JH;German ALS network MND-NET
通讯作者:
German ALS network MND-NET
影响因子:
8.8
作者:
Chiba, Kyoko;Ori-McKenney, Kassandra M.;Niwa, Shinsuke;McKenney, Richard J.
通讯作者:
McKenney, Richard J.
影响因子:
9.2
作者:
Budaitis, Breane G.;Badieyan, Somayesadat;Yue, Yang;Blasius, T. Lynne;Reinemann, Dana N.;Lang, Matthew J.;Cianfrocco, Michael A.;Verhey, Kristen J.
通讯作者:
Verhey, Kristen J.
影响因子:
64.8
作者:
Chaaban S;Carter AP
通讯作者:
Carter AP
影响因子:
8.8
作者:
Baron, Desiree M.;Fenton, Adam R.;Saez-Atienzar, Sara;Giampetruzzi, Anthony;Sreeram, Aparna;Shankaracharya;Keagle, Pamela J.;Doocy, Victoria R.;Smith, Nathan J.;Danielson, Eric W.;Andresano, Megan;McCormack, Mary C.;Garcia, Jaqueline;Bercier, Valerie;Van den Bosch, Ludo;Brent, Jonathan R.;Fallini, Claudia;Traynor, Bryan J.;Holzbaur, Erika L. F.;Landers, John E.
通讯作者:
Landers, John E.