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Abstract:
An atomistically detailed picture of protein folding at interfaces can effectively be obtained by comparing interface-sensitive spectroscopic techniques to molecular simulations. Here, we present an extensive evaluation of the capability of contemporary force fields to model protein folding at air-water interfaces with a general scheme for sampling and reweighting theoretical conformational ensembles of interfacial peptides. Force field combinations of CHARMM22* / TIP3P and AMBER99SB*-ILDN / SPC/E were found to reproduce experimental observations best.