sidechain = Group('trp_sidechain_noh')
peptide = Group('peptide_ct_noh')
bonds = [Bond(peptide.C_alpha, sidechain.C_beta), ]
symbol = 'Trp'
amber_charge = {sidechain.C_epsilon_3: -0.1837, peptide.O_2: -0.8011, sidechain.C_beta: -0.0742, sidechain.C_delta_2: 0.1078, sidechain.C_zeta_3: -0.2287, sidechain.C_eta_2: -0.102, sidechain.C_delta_1: -0.1808, peptide.C: 0.7658, peptide.O: -0.8011, sidechain.C_gamma: -0.0796, sidechain.N_epsilon_1: -0.3316, sidechain.C_zeta_2: -0.2594, sidechain.C_epsilon_2: 0.1222, peptide.N: -0.3821, peptide.C_alpha: -0.2084, }
name = 'tryptophan'
chain_links = [peptide.N, None]
