Near-atomic cryo-EM structure of yeast kinesin-5-microtubule complex reveals a distinct binding footprint
Near-atomic cryo-EM structure of yeast kinesin-5-microtubule complex reveals a distinct binding footprint
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酵母驱动蛋白-5-微管复合物的近原子冷冻电镜结构揭示了独特的结合足迹
DOI:
10.1101/302455
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Von Loeffelholz O
中科院分区:
文献类型:
--
作者:
Von Loeffelholz O
< jats: title> Summary< jats: p> Kinesin-5s are essential members of the superfamily of microtubule-dependent motors that undertake conserved roles in cell division. We investigated coevolution of the motor-microtubule interface using cryo-electron microscopy to determine the near-atomic structure of the motor domain of Cut7, the fission yeast kinesin-5, bound to fission yeast microtubules. AMPPNP-bound Cut7 adopts a kinesin-conserved ATP-like conformation, with a closed nucleotide binding pocket and docked neck linker that supports cover neck bundle formation. Compared to mammalian tubulin microtubules, Cut7’s footprint on< jats: italic> S. pombe microtubule surface is subtly different because of their different architecture. However, the core motor-microtubule interaction that stimulates motor ATPase is tightly conserved, reflected in similar Cut7 ATPase activities on each microtubule type. The< jats: italic> S. pombe microtubules were bound by the drug epothilone, which is visible in the taxane binding pocket. Stabilization of< jats: italic> S. pombe microtubules is mediated by drug binding at this conserved site despite their noncanonical architecture and mechanochemistry.< jats: sec>< jats: title> Highlights< jats: p>< jats: list list-type=" bullet">< jats: list-item>< jats: p>< jats: italic> S. pombe Cut7 has a distinct binding footprint on< jats: italic> S. pombe microtubules< jats: list-item>< jats: p> The core interface driving microtubule activation of motor ATPase is conserved< jats: list-item>< jats: p> The neck linker is docked in AMPPNP-bound Cut7 and the cover neck bundle is formed< jats: list-item>< jats: p> Epothilone binds at the taxane binding site to stabilize< jats: italic> S. pombe microtubules< jats: sec>< jats: title> eTOC text< jats: p> To investigate coevolution of the motor-microtubule interface, we used cryo-electron microscopy to determine the near-atomic structure of the motor domain of Cut7, the fission yeast kinesin-5, bound to microtubules polymerized from natively purified fission yeast tubulin and stabilised by the drug epothilone.
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影响因子:
2.9
作者:
Bode, CJ;Gupta, ML;Himes, RH
通讯作者:
Himes, RH
DOI:
10.1097/iae.0000000000001602
发表时间:
2017
期刊:
Retina (Philadelphia, Pa.)
影响因子:
--
作者:
Todorich,Bozho;Thanos,Aristomenis;Yonekawa,Yoshihiro;Thomas,BenjaminJ;Faia,LisaJ;Chang,Emmanuel;Shulman,Julia;Olsen,KarlR;Blair,MichaelP;Shapiro,MichaelP;Ferrone,Philip;Vajzovic,Lejla;Toth,CynthiaA;Lee,ThomasC;Robinson,
通讯作者:
Robinson,
DOI:
10.1007/978-1-61779-252-6_3
发表时间:
2011-01-01
期刊:
MICROTUBE DYNAMICS: METHODS AND PROTOCOLS
影响因子:
--
作者:
Drummond, Douglas R.;Kain, Susan;Cross, Robert A.
通讯作者:
Cross, Robert A.
影响因子:
3.3
作者:
Widlund PO;Podolski M;Reber S;Alper J;Storch M;Hyman AA;Howard J;Drechsel DN
通讯作者:
Drechsel DN
影响因子:
4.8
作者:
Liqiong Liu;Sreeja Parameswaran;Jing Liu;Sunyoung Kim;E. Wojcik
通讯作者:
E. Wojcik