sidechain = Group('hip_sidechain_noh')
peptide = Group('peptide_noh')
bonds = [Bond(peptide.C_alpha, sidechain.C_beta), ]
symbol = 'Hsp'
amber_charge = {peptide.O: -0.5894, peptide.N: -0.3479, sidechain.C_beta: -0.0414, peptide.C: 0.7341, sidechain.C_delta_2: -0.1141, sidechain.C_epsilon_1: -0.017, sidechain.N_epsilon_2: -0.1718, peptide.C_alpha: -0.1354, sidechain.C_gamma: -0.0012, sidechain.N_delta_1: -0.1513, }
name = 'histidine_plus'
chain_links = [peptide.N, peptide.C]
