they are calibrated or tested against a large body of experimental data , including extended basis set ab initio , quantum mechanical calculations , nuclear magnetic resonance spectroscopic data and dipole moment data for di- and oligopeptides , characteristic ratio data for random coil homopolypeptides , extensive data from peptide solubility studies , and experimental structures of polyalanine fibres and globular proteins .
C0028954
oligopeptides
C0030956
peptide