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Human Tubulin Conformational Dynamics and Global Correlations Driven by Colchicine Binding

Lorenzo Pallante

Human Tubulin Conformational Dynamics and Global Correlations Driven by Colchicine Binding.

Rel. Marco Agostino Deriu, Umberto Morbiducci, Jacek Adam Tuszynski. Politecnico di Torino, Corso di laurea magistrale in Ingegneria Biomedica, 2019

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Abstract:

Microtubules play important roles in several essential cellular processes and their functionality is influenced by complex polymerization dynamic, which is driven by conformational changes of tubulin. The presence of destabilizing drugs, such as colchicine, stabilizes curved conformation of tubulin, preventing the integration in microtubule lattice. In this study, the effect of colchicine on three different isotypes, αβIIa, αβIII and αβIVa, was evaluated through molecular dynamics simulations with focus on the relation between structural rearrangements and conformational changes. Results suggest a correlation between the motion of the β tubulin M loop and structural modifications, such as the intradimer bending and twisting angle. The presence of colchicine influences the fluctuation of this loop and each isotype responds in different ways.

Relators: Marco Agostino Deriu, Umberto Morbiducci, Jacek Adam Tuszynski
Academic year: 2018/19
Publication type: Electronic
Number of Pages: 83
Subjects:
Corso di laurea: Corso di laurea magistrale in Ingegneria Biomedica
Classe di laurea: New organization > Master science > LM-21 - BIOMEDICAL ENGINEERING
Aziende collaboratrici: Politecnico di Torino
URI: http://webthesis.biblio.polito.it/id/eprint/10674
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