Abstract
Sickle cell anemia is the first disease whose cause was pinpointed at a genetic level. Hydrophobic interaction is the main cause for sickle hemoglobin (hemoglobin S) sticking to itself. Interaction of water with hydrophobic objects plays a major role in molecular self-assembly processes[1-3], as well in the process of aggregation of hemoglobin S. In this chapter, slow motion analysis and model reduction methods were employed for the study of hemoglobin-hemoglobin interaction. Through this study, a new computational framework was presented for calculating the normal modes and interactions of proteins, macromolecular assemblies, and surrounding solvents. The framework employs a combination of Molecular Dynamics (MD) simulation and Principal Component Analysis (PCA). It enables the capture and visualization of the molecules’ normal modes and interactions over time scales that are computationally challenging, providing a starting point for experimental and further computational studies of protein conformational changes. We hope that the modeling protocols or procedures established for this known pathology will eventually shed some light on other complex biological systems that are not well known.
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© 2011 Higher Education Press, Beijing and Springer-Verlag Berlin Heidelberg
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Wu, T., Wang, X.S., Cohen, B. (2011). Modeling of Proteins and Their Interactions with Solvent. In: Li, S., Sun, B. (eds) Advances in Cell Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-17590-9_3
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DOI: https://doi.org/10.1007/978-3-642-17590-9_3
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