Polarity of Neuronal Membrane Traffic Requires Sorting of Kinesin Motor Cargo during Entry into Dendrites by a Microtubule-Associated Septin.
Polarity of Neuronal Membrane Traffic Requires Sorting of Kinesin Motor Cargo during Entry into Dendrites by a Microtubule-Associated Septin.
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神经元膜交通的极性需要在微管相关的SEPTIN进入树突期间对运动蛋白运动货物进行排序。
DOI:
10.1016/j.devcel.2018.06.013
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发表时间:
2018-07-16
影响因子:
11.8
通讯作者:
Spiliotis ET
中科院分区:
文献类型:
--
作者:
Karasmanis EP;Phan CT;Angelis D;Kesisova IA;Hoogenraad CC;McKenney RJ;Spiliotis ET
Neuronal function requires axon-dendrite membrane polarity, which depends on sorting of membrane traffic during entry into axons. Due to a microtubule network of mixed polarity, dendrites receive vesicles from the cell body without apparent capacity for directional sorting. We found that, during entry into dendrites, axonally destined cargos move with a retrograde bias toward the cell body, while dendritically destined cargos are biased in the anterograde direction. A microtubule-associated septin (SEPT9), which localizes specifically in dendrites, impedes axonal cargo of kinesin-1/KIF5 and boosts kinesin-3/KIF1 motor cargo further into dendrites. In neurons and in vitro single-molecule motility assays, SEPT9 suppresses kinesin-1/KIF5 and enhances kinesin-3/KIF1 in a manner that depends on a lysine-rich loop of the kinesin motor domain. This differential regulation impacts partitioning of neuronal membrane proteins into axons-dendrites. Thus, polarized membrane traffic requires sorting during entry into dendrites by a septin-mediated mechanism that bestows directional bias on microtubules of mixed orientation. Polarized neuronal membrane traffic relies primarily on sorting at axonal entry, while dendrites appear to lack directional sorting due to mixed microtubule orientation. Karasmanis et al. show that a dendritically enriched microtubule-associated septin, SEPT9, impedes axonal kinesin-1/KIF5 but promotes dendritic kinesin-3/KIF1A motor cargo, thereby bestowing directional bias during dendritic entry.
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影响因子:
16.6
作者:
Ageta-Ishihara, Natsumi;Miyata, Takaki;Ohshima, Chika;Watanabe, Masahiko;Sato, Yoshikatsu;Hamamura, Yuki;Higashiyama, Tetsuya;Mazitschek, Ralph;Bito, Haruhiko;Kinoshita, Makoto
通讯作者:
Kinoshita, Makoto
DOI:
10.1083/jcb.201205070
发表时间:
2012-08-20
期刊:
The Journal of cell biology
影响因子:
--
作者:
Jenkins B;Decker H;Bentley M;Luisi J;Banker G
通讯作者:
Banker G
DOI:
10.1083/jcb.201310021
发表时间:
2014-01-06
期刊:
The Journal of cell biology
影响因子:
--
作者:
Bonifacino JS
通讯作者:
Bonifacino JS
影响因子:
11.8
作者:
Grigoriev, Ilya;Splinter, Daniel;Akhmanova, Anna
通讯作者:
Akhmanova, Anna
影响因子:
3
作者:
Baas PW;Lin S
通讯作者:
Lin S