sidechain = Group('ile_sidechain_uni')
peptide = Group('peptide_uni')
bonds = [Bond(peptide.C_alpha, sidechain.C_beta), ]
symbol = 'Ile'
name = 'isoleucine'
chain_links = [peptide.N, peptide.C]
amber91_charge = {peptide.H: 0.248, sidechain.C_gamma_2: 0.001, peptide.C: 0.526, peptide.N: -0.52, sidechain.C_gamma_1: 0.017, sidechain.C_delta_1: -0.001, peptide.O: -0.5, peptide.C_alpha: 0.199, sidechain.C_beta: 0.03, }
