In this dissertation, the molecular mechanism of active ion transport across a biological membrane was investigated for two trans-membrane proteins, namely respiratory Complex I from
Thermus thermophilus and the Na
+/H
+-antiporter from
Methanocaldococcus jannaschii (MjNhaP1). These systems were studied by applying molecular dynamics simulations, quantum mechanics/classical mechanics simulation, and free energy calculations. The results lead to an improved understanding of the ion selectivity in MjNhaP1, and an estimation of free energy profiles of the quinone substrate into the active site of complex I, with implications for understanding the coupling mechanism in both systems.
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In this dissertation, the molecular mechanism of active ion transport across a biological membrane was investigated for two trans-membrane proteins, namely respiratory Complex I from
Thermus thermophilus and the Na
+/H
+-antiporter from
Methanocaldococcus jannaschii (MjNhaP1). These systems were studied by applying molecular dynamics simulations, quantum mechanics/classical mechanics simulation, and free energy calculations. The results lead to an improved understanding of the ion selectivity in...
»