TCB Publications - Abstract

Jing Li, Po-Chao Wen, Mahmoud Moradi, and Emad Tajkhorshid. Computational characterization of structural dynamics underlying function in active membrane transporters. Current Opinion in Structural Biology, 31:96-105, 2015. (PMC: PMC4476910)

LI2015C-ET Active transport of materials across the cellular membrane is one the most fundamental processes in biology. In order to accomplish this task, membrane transporters rely on a wide range of conformational changes spanning multiple time and size scales. These molecular events govern key functional aspects in membrane transporters, namely, coordinated gating motions underlying the alternating access mode of operation, and coupling of uphill transport of substrate to various sources of energy, for example, transmembrane electrochemical gradients and ATP binding and hydrolysis. Computational techniques such as molecular dynamics simulations and free energy calculations have equipped us with a powerful repertoire of biophysical tools offering unparalleled spatial and temporal resolutions that can effectively complement experimental methodologies, and therefore help fill the gap of knowledge in understanding the molecular basis of function in membrane transporters.

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