sidechain = Group('ser_sidechain_uni')
peptide = Group('peptide_ct_uni')
bonds = [Bond(peptide.C_alpha, sidechain.C_beta), ]
symbol = 'Ser'
amber91_charge = {sidechain.H_gamma: 0.31, peptide.H: 0.248, sidechain.O_gamma: -0.55, peptide.N: -0.52, peptide.O_2: -0.706, peptide.C: 0.444, sidechain.C_beta: 0.194, peptide.C_alpha: 0.286, peptide.O: -0.706, }
name = 'serine'
chain_links = [peptide.N, None]
