sidechain = Group('trp_sidechain_noh')
peptide = Group('peptide_noh')
bonds = [Bond(peptide.C_alpha, sidechain.C_beta), ]
symbol = 'Trp'
amber_charge = {sidechain.C_epsilon_3: -0.2387, peptide.N: -0.4157, sidechain.C_eta_2: -0.1134, peptide.C: 0.5973, sidechain.C_delta_1: -0.1638, sidechain.C_zeta_2: -0.2601, sidechain.C_zeta_3: -0.1972, sidechain.C_epsilon_2: 0.138, peptide.C_alpha: -0.0275, sidechain.N_epsilon_1: -0.3418, peptide.O: -0.5679, sidechain.C_beta: -0.005, sidechain.C_gamma: -0.1415, sidechain.C_delta_2: 0.1243, }
name = 'tryptophan'
chain_links = [peptide.N, peptide.C]
