sidechain = Group('asp_sidechain')
peptide = Group('peptide_nt')
bonds = [Bond(peptide.C_alpha, sidechain.C_beta), ]
symbol = 'Asp'
amber_charge = {peptide.H_3: 0.22, peptide.H_1: 0.22, peptide.H_alpha: 0.1141, sidechain.H_beta_3: -0.0169, sidechain.O_delta_2: -0.8084, sidechain.C_beta: -0.0235, sidechain.O_delta_1: -0.8084, peptide.N: 0.0782, peptide.C: 0.5621, peptide.O: -0.5889, sidechain.C_gamma: 0.8194, sidechain.H_beta_2: -0.0169, peptide.H_2: 0.22, peptide.C_alpha: 0.0292, }
name = 'aspartic_acid'
chain_links = [None, peptide.C]
