sidechain = Group('asp_sidechain')
peptide = Group('peptide_ct')
bonds = [Bond(peptide.C_alpha, sidechain.C_beta), ]
symbol = 'Asp'
amber_charge = {sidechain.C_gamma: 0.8851, peptide.O: -0.7887, sidechain.H_beta_3: -0.0212, peptide.H_alpha: 0.1046, peptide.N: -0.5192, peptide.C: 0.7256, sidechain.O_delta_2: -0.8162, peptide.H: 0.3055, peptide.O_2: -0.7887, sidechain.C_beta: -0.0677, peptide.C_alpha: -0.1817, sidechain.O_delta_1: -0.8162, sidechain.H_beta_2: -0.0212, }
name = 'aspartic_acid'
chain_links = [peptide.N, None]
