Cevipabulin-tubulin complex reveals a novel agent binding site on α-tubulin with tubulin degradation effect.
Cevipabulin-tubulin complex reveals a novel agent binding site on α-tubulin with tubulin degradation effect.
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Cevipabulin-微管蛋白复合物揭示了α-微管蛋白上的新型药物结合位点,具有微管蛋白降解作用
DOI:
10.1126/sciadv.abg4168
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发表时间:
2021-05
期刊:
影响因子:
13.6
通讯作者:
Chen L
中科院分区:
文献类型:
--
作者:
Yang J;Yu Y;Li Y;Yan W;Ye H;Niu L;Tang M;Wang Z;Yang Z;Pei H;Wei H;Zhao M;Wen J;Yang L;Ouyang L;Wei Y;Chen Q;Li W;Chen L
A novel binding site on α-tubulin shows promise as a target for a new generation of anticancer drugs. Microtubules, composed of αβ-tubulin heterodimers, have remained popular anticancer targets for decades. Six known binding sites on tubulin dimers have been identified thus far, with five sites on β-tubulin and only one site on α-tubulin, hinting that compounds binding to α-tubulin are less well characterized. Cevipabulin, a microtubule-active antitumor clinical candidate, is widely accepted as a microtubule-stabilizing agent by binding to the vinblastine site. Our x-ray crystallography study reveals that, in addition to binding to the vinblastine site, cevipabulin also binds to a new site on α-tubulin. We find that cevipabulin at this site pushes the αT5 loop outward, making the nonexchangeable GTP exchangeable, which reduces the stability of tubulin, leading to its destabilization and degradation. Our results confirm the existence of a new agent binding site on α-tubulin and shed light on the development of tubulin degraders as a new generation of antimicrotubule drugs targeting this novel site.
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影响因子:
16.6
作者:
Yang J;Wang Y;Wang T;Jiang J;Botting CH;Liu H;Chen Q;Yang J;Naismith JH;Zhu X;Chen L
通讯作者:
Chen L
影响因子:
64.5
作者:
Keays DA;Tian G;Poirier K;Huang GJ;Siebold C;Cleak J;Oliver PL;Fray M;Harvey RJ;Molnár Z;Piñon MC;Dear N;Valdar W;Brown SD;Davies KE;Rawlins JN;Cowan NJ;Nolan P;Chelly J;Flint J
通讯作者:
Flint J
影响因子:
4.8
作者:
Menéndez, M;Rivas, G;Andreu, JM
通讯作者:
Andreu, JM
DOI:
10.1073/pnas.1408124111
发表时间:
2014-09-23
影响因子:
11.1
作者:
Prota, Andrea E.;Bargsten, Katja;Steinmetz, Michel O.
通讯作者:
Steinmetz, Michel O.
影响因子:
5.6
作者:
Prota, Andrea E.;Setter, Jocelyn;Steinmetz, Michel O.
通讯作者:
Steinmetz, Michel O.