Three-Dimensional Structure and Dynamics of a de Novo Designed, Amphiphilic, Metallo-Porphyrin-Binding Protein Maquette at Soft Interfaces by Molecular Dynamics Simulations

2007 ◽  
Vol 111 (7) ◽  
pp. 1823-1833 ◽  
Author(s):  
Hongling Zou ◽  
Joseph Strzalka ◽  
Ting Xu ◽  
Andrey Tronin ◽  
J. Kent Blasie
2020 ◽  
Author(s):  
Sandro Bottaro ◽  
Giovanni Bussi ◽  
Kresten Lindorff-Larsen

The 5' untranslated region (UTR) of SARS-CoV-2 genome is a conserved, functional and structured genomic region consisting of several RNA stem-loop elements. While the secondary structure of such elements has been determined experimentally, their three-dimensional structure is not known yet. Here, we predict structure and dynamics of five RNA stem-loops in the 5'-UTR of SARS-CoV-2 by extensive atomistic molecular dynamics simulations, more than 0.5ms of aggregate simulation time, in combination with enhanced sampling techniques. We compare simulations with available experimental data, describe the resulting conformational ensembles, and identify the presence of specific structural rearrengements in apical and internal loops that may be functionally relevant. Our atomic-detailed structural predictions reveal a rich dynamics in these RNA molecules, could help the experimental characterisation of these systems, and provide putative three-dimensional models for structure-based drug design studies.


2007 ◽  
Vol 5 (3) ◽  
pp. 635-671 ◽  
Author(s):  
Carmen Domene

AbstractDespite the complexity of ion-channels, MD simulations based on realistic all-atom models have become a powerful technique for providing accurate descriptions of the structure and dynamics of these systems, complementing and reinforcing experimental work. Successful multidisciplinary collaborations, progress in the experimental determination of three-dimensional structures of membrane proteins together with new algorithms for molecular simulations and the increasing speed and availability of supercomputers, have made possible a considerable progress in this area of biophysics. This review aims at highlighting some of the work in the area of potassium channels and molecular dynamics simulations where numerous fundamental questions about the structure, function, folding and dynamics of these systems remain as yet unresolved challenges.


2015 ◽  
Vol 11 (3) ◽  
pp. 723-733 ◽  
Author(s):  
Yu-Chung Chuang ◽  
Ching-Hsun Chang ◽  
Jen-Tai Lin ◽  
Chia-Ning Yang

In this work, a CoMFA model and molecular dynamics simulations provide guidelines for drug development of SIRT2 inhibitors.


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