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. 2013 Jan;99(1):22-34.
doi: 10.1002/bip.22131.

Ab initio based conformational study of the crystalline α-chitin

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Ab initio based conformational study of the crystalline α-chitin

Michal Petrov et al. Biopolymers. 2013 Jan.

Abstract

The equilibrium structure including the network of hydrogen bonds of an α-chitin crystal is determined combining density-functional theory (DFT), self-consistent DFT-based tight-binding (SCC-DFTB), and empirical forcefield molecular dynamics (MD) simulations. Based on the equilibrium geometry several possible crystal conformations (local energy minima) have been identified and related to hydrogen bond patterns. Our results provide new insight and allow to resolve the contradicting α-chitin structural models proposed by various experiments.

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