Publication: Molecular dynamics simulations of asymmetric heterodimers of HER1/HER2 complexes
Issued Date
2018-01-01
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ISSN
09485023
16102940
16102940
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2-s2.0-85039063981
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Molecular Modeling. Vol.24, No.1 (2018)
Suggested Citation
Chonticha Suwattanasophon, Napat Songtawee, Peter Wolschann, Kiattawee Choowongkomon Molecular dynamics simulations of asymmetric heterodimers of HER1/HER2 complexes. Journal of Molecular Modeling. Vol.24, No.1 (2018). doi:10.1007/s00894-017-3544-0 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/45455
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Title
Molecular dynamics simulations of asymmetric heterodimers of HER1/HER2 complexes
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Abstract
© 2017, Springer-Verlag GmbH Germany, part of Springer Nature. The family of human epidermal growth factor receptors (HER) is involved in tumor cell growth. Homodimerization and heterodimerization of the HER family are important for activation of these receptors. The structures of homodimer conformation are well characterized, while the structures of heterodimer conformations, especially between HER1 and HER2, are not completely understood. In this study, two models of possible asymmetric HER1/HER2 kinase domains were built. Molecular dynamics simulations and molecular mechanics-Poisson-Boltzmann surface area (MM-PBSA) methods were applied to examine the possibility of these two-heterodimer interactions. From our results, it could be concluded that the HER2 kinase domain prefers to serve as the receiver rather than the activator. Key binding residues of this dimer complex at N lobe of HER2 is ALA683 and at C lobe of HER1 are GLU914, GLU917, and ASP930. This study will be useful in allowing us to predict and be able to control activity of this enzyme in disease in the future.