sidechain = Group('hid_sidechain_uni')
peptide = Group('peptide_uni')
bonds = [Bond(peptide.C_alpha, sidechain.C_beta), ]
symbol = 'Hsd'
name = 'histidine_deltah'
chain_links = [peptide.N, peptide.C]
amber91_charge = {peptide.O: -0.5, peptide.N: -0.52, sidechain.H_delta_1: 0.32, sidechain.C_beta: 0.06, peptide.C_alpha: 0.219, sidechain.C_gamma: 0.089, sidechain.C_delta_2: 0.145, sidechain.N_epsilon_2: -0.527, sidechain.N_delta_1: -0.444, sidechain.C_epsilon_1: 0.384, peptide.C: 0.526, peptide.H: 0.248, }
