sidechain = Group('hip_sidechain')
peptide = Group('peptide')
bonds = [Bond(peptide.C_alpha, sidechain.C_beta), ]
symbol = 'Hsp'
amber_charge = {sidechain.C_epsilon_1: -0.017, sidechain.N_epsilon_2: -0.1718, sidechain.H_beta_3: 0.081, peptide.N: -0.3479, peptide.C: 0.7341, peptide.H: 0.2747, sidechain.H_delta_2: 0.2317, sidechain.N_delta_1: -0.1513, sidechain.C_gamma: -0.0012, sidechain.H_beta_2: 0.081, sidechain.H_epsilon_1: 0.2681, sidechain.C_beta: -0.0414, peptide.C_alpha: -0.1354, sidechain.H_epsilon_2: 0.3911, sidechain.C_delta_2: -0.1141, sidechain.H_delta_1: 0.3866, peptide.H_alpha: 0.1212, peptide.O: -0.5894, }
name = 'histidine_plus'
chain_links = [peptide.N, peptide.C]
