Side-chain distribution of residue ARG. Left: Gaussian mixture distribution of side-chain torsion angles for the native structure of residue 130 (arginine) in protein 1AMP. Right: histograms of side-chain angles from samples generated by SLIKMC. The distributions of χ1, χ2 match well with the sampling distributions while the distributions of χ3 and χ4 are limited due to steric clashes.
Zhang and Hauser BMC Structural Biology 2013 13(Suppl 1):S9 doi:10.1186/1472-6807-13-S1-S9