CryoET reveals actin filaments within platelet microtubules
CryoET reveals actin filaments within platelet microtubules
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CryoET 揭示血小板微管内的肌动蛋白丝
DOI:
10.1101/2023.11.24.568450
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发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Tsuji C
中科院分区:
文献类型:
--
作者:
Tsuji C
Crosstalk between the actin and microtubule cytoskeletons is important for many cellular processes. Recent studies have shown that microtubules and F-actin can assemble to form a composite structure where F-actin occupies the microtubule lumen. Whether these cytoskeletal hybrids exist in physiological settings and how they are formed is unclear. Here, we show that the short-crossover Class I actin filament previously identified inside microtubules in human HAP1 cells is cofilin-bound F-actin. Lumenal F-actin can be reconstituted in vitro, but cofilin is not essential. Moreover, actin filaments with both cofilin-bound and canonical morphologies reside within human platelet microtubules under physiological conditions. We propose that stress placed upon the microtubule network during motor-driven microtubule looping and sliding may facilitate the incorporation of actin into microtubules.
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影响因子:
64.8
作者:
EGELMAN, EH;FRANCIS, N;DEROSIER, DJ
通讯作者:
DEROSIER, DJ
影响因子:
7.3
作者:
Quentin Kimmerlin;C. Strassel;A. Eckly;F. Lanza
通讯作者:
Quentin Kimmerlin;C. Strassel;A. Eckly;F. Lanza
影响因子:
12.4
作者:
Dominguez R;Holmes KC
通讯作者:
Holmes KC
影响因子:
20.3
作者:
Kile, Benjamin T.;Panopoulos, Athanasia D.;Justice, Monica J.
通讯作者:
Justice, Monica J.
DOI:
--
发表时间:
1967
期刊:
Journal of Ultrastructure Research
影响因子:
--
作者:
O. Behnke;T. Zelander
通讯作者:
T. Zelander