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Discrete Energy Laws for the First-Order System Least-Squares Finite-Element Approach Read chapter Read first chapter

2018 | OriginalPaper | Chapter

Computational Modelling of the Full Length hIFN-\(\gamma \) Homodimer

Authors : Peicho Petkov, Elena Lilkova, Nevena Ilieva, Genoveva Nacheva, Ivan Ivanov, Leandar Litov

Published in: Large-Scale Scientific Computing

Publisher: Springer International Publishing

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Abstract

Human interferon gamma (hIFN-\(\gamma \)) is an important signalling molecule, which plays a key role in the formation and modulation of immune response. The controversial conclusions concerning the function of hIFN-\(\gamma \) C-termini as well as the lack of structural information about this domain motivated us to perform molecular dynamics simulations in order to model the structure of the hIFN-\(\gamma \) C-terminal part. The simulations were carried out with the CHARMM22 force field, starting from a fully extended conformation of the C-termini. They showed unambiguously that the C-termini tend to approach the globular part of the protein, so that the whole hIFN-\(\gamma \) molecule adopts a more compact conformation. The energetic favourability of the more compact conformations of the whole cytokine was also confirmed by means of free energy perturbation simulations.

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Metadata
Title
Computational Modelling of the Full Length hIFN- Homodimer
Authors
Peicho Petkov
Elena Lilkova
Nevena Ilieva
Genoveva Nacheva
Ivan Ivanov
Leandar Litov
Copyright Year
2018
Book
Large-Scale Scientific Computing

Print ISBN: 978-3-319-73440-8

Electronic ISBN: 978-3-319-73441-5

Copyright Year: 2018

DOI
https://doi.org/10.1007/978-3-319-73441-5_60

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