43 Studies using molecular dynamics reveal mechanism of interaction of hemocyanin with phenolic substrates

Molecular dynamics simulations were applied to deoxy- and oxy-hemocyanins using newly developed force field parameters for the dicopper site to evaluate their structural and dynamical properties. Data obtained from the simulations provided information of the oxygenation effect on the active site and overall topology of the protein that was analyzed by root-mean-square deviations, b-factors, and dicopper coordination geometries. Domain I of the protein was found to demonstrate higher flexibility with respect to domain II because of the interfacial rotation between domain I and II that was further endorsed by computing correlative domain movements for both forms of the protein. The oxygenation effect on the overall structure of the protein or polypeptide subunit was further explored via gyration radii evaluated for the metal-binding domain and for the whole subunit. The evaluation of hydration dynamics was carried out to understand the water mediated role of amino acid residues of the solvent tunnel facilitating the entry of oxygen molecule to the dicopper site of hemocyanin.

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Hydration facilitates oxygenation of hemocyanin: perspectives from molecular dynamics simulations

Bux

Ali

Moin

2018

Eur Biophys J

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43 Studies using molecular dynamics reveal mechanism of interaction of hemocyanin with phenolic substrates

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Hydration facilitates oxygenation of hemocyanin: perspectives from molecular dynamics simulations

Hydration facilitates oxygenation of hemocyanin: perspectives from molecular dynamics simulations

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