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- W2090973377 abstract "Members of the synuclein family (α, β and γ synucleins) are intrinsically disordered in nature and play a crucial role in the progression of various neurodegenerative disorders and cancers. The association of γSyn with both BubR1 as well as microtubule subunits renders resistance against various anti-cancer drugs. However, the structural aspects underlying drug resistance have not been explored. In this study, the mechanism involved in the association between γSyn and microtubule subunits (αβTub) was investigated and the results reveal a strong interaction between γSyn and the tail regions of αβTub. Complexation of γSyn induces conformational rearrangements in the nucleotide binding loops (NBL), interdomain and tail regions of both α and βTub. Moreover, in βTub, the massive displacement observed in M and S loops significantly alters the binding site of microtubule targeting drugs like Taxol. The resulting weak association between Taxol and βTub of the γSyn–αβTub complex was confirmed by molecular dynamic simulation studies. In addition, the effect of Taxol on NBL, M and S loops of αβTub, is reversed in the presence of γSyn. These results clearly indicate that the presence of γSyn annulled the allosteric regulation imposed by Taxol on the αβTub complex as well as preventing the binding of microtubule targeting drugs, which eventually leads to the development of resistance against these drugs in cancer cells." @default.
- W2090973377 created "2016-06-24" @default.
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- W2090973377 date "2013-01-01" @default.
- W2090973377 modified "2023-09-26" @default.
- W2090973377 title "Molecular dynamic simulations of the tubulin–human gamma synuclein complex: structural insight into the regulatory mechanism involved in inducing resistance against Taxol" @default.
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- W2090973377 doi "https://doi.org/10.1039/c3mb25427e" @default.
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