sidechain = Group('cys_sidechain_uni')
peptide = Group('peptide_nt_uni')
bonds = [Bond(peptide.C_alpha, sidechain.C_beta), ]
symbol = 'Cys'
amber91_charge = {sidechain.S_gamma: 0.827, sidechain.LP_2: -0.481, peptide.H_1: 0.312, peptide.C: 0.526, sidechain.C_beta: 0.1, peptide.N: -0.263, peptide.C_alpha: 0.201, peptide.O: -0.5, peptide.H_3: 0.312, peptide.H_2: 0.312, sidechain.LP_1: -0.481, sidechain.H_gamma: 0.135, }
name = 'cysteine'
chain_links = [None, peptide.C]
