sidechain = Group('hid_sidechain_noh')
peptide = Group('peptide_noh')
bonds = [Bond(peptide.C_alpha, sidechain.C_beta), ]
symbol = 'Hsd'
amber_charge = {sidechain.C_delta_2: 0.1292, sidechain.N_delta_1: -0.3811, sidechain.C_gamma: -0.0266, peptide.C_alpha: 0.0188, sidechain.C_epsilon_1: 0.2057, peptide.N: -0.4157, peptide.O: -0.5679, sidechain.C_beta: -0.0462, peptide.C: 0.5973, sidechain.N_epsilon_2: -0.5727, }
name = 'histidine_deltah'
chain_links = [peptide.N, peptide.C]
