Fig. 14From: Comparison Between Empirical Protein Force Fields for the Simulation of the Adsorption Behavior of Structured LK Peptides on Functionalized SurfacesFrequency distributions of amino acid side chain terminal carbon surface separation distances (SSDs) for the LKα14 peptide adsorbed to the COOH-SAM during the last 6 ns of REMD sampling using a the CHARMM22 FF, b the AMBER94 FF, and c the OPLS-AA FFBack to article page