sidechain = Group('asp_sidechain_uni')
peptide = Group('peptide_uni')
bonds = [Bond(peptide.C_alpha, sidechain.C_beta), ]
symbol = 'Asp'
amber91_charge = {peptide.C_alpha: 0.246, peptide.H: 0.248, sidechain.O_delta_1: -0.706, peptide.O: -0.5, sidechain.O_delta_2: -0.706, peptide.N: -0.52, sidechain.C_gamma: 0.62, sidechain.C_beta: -0.208, peptide.C: 0.526, }
name = 'aspartic_acid'
chain_links = [peptide.N, peptide.C]
