and of the ALA-di and ALA-tet data sets of the additive, pGM-ind, and pGM-perm models parameterized with alanine dipeptides from the ALA-di data set in one to five conformations. (A,B) and of the ALA-di data set. The one to five conformations are C7eq, αR/β, αR/β/C7eq, αR/β/C7eq/aβ, and αR/β/C7eq/aβ/C5, respectively. (C,D) and of the ALA-tet data set. The one to five conformations are β, αR/β, αR/β/C7eq, αR/β/C7eq/aβ, and αR/β/C7eq/aβ/C5, respectively.