Investigating Collagen as a Bio-Material by Molecular Dynamics Simulations

Dimah Zakaraia; Dalal K. Thbayh; Béla Fiser; Michael C. Owen

doi:10.32974/mse.2022.012

Authors

Dimah Zakaraia University of Miskolc, Institute of Chemistry
Dalal K. Thbayh University of Basrah, Polymer Research Center
Béla Fiser Ferenc Rakoczi II Transcarpathian Hungarian College of Higher Education
Michael C. Owen University of Miskolc, Higher Education and Industrial Cooperation Centre

DOI:

https://doi.org/10.32974/mse.2022.012

Keywords:

collagen, polymer, hydrogen bonds, hydrophilic, hydrophobic

Abstract

In this work, molecular dynamics simulation is used to describe and analyze the behavior of model collagen polymer (Pro-Pro-Gly)9. This project aims to highlight the important role of molecular dynamic simulation in determining the structural stability of collagen, and establishing collagen as a hydrophobic or hydrophilic protein under different temperatures. The system was simulated at four different temperatures (300, 310, 320, and 330 K). The results indicate that the average number of hydrogen bonds within the protein and the protein backbone was similar at each temperature. The solvent-accessible surface area of hydrophobic and hydrophilic atoms for the four temperatures indicates that the collagen model peptide is mostly hydrophobic. All the results show that the structure of the studied polymer was the least stable at 320 K and the most stable at lower temperatures (300 K). The average effect across the first 100 ns was investigated. The dominant states obtained within this time interval will be explored in following studies. Researchers can use the results of this work to develop collagen with the appropriate thermal stability for biological applications.

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