sidechain = Group('cys_sidechain')
peptide = Group('peptide_nt')
bonds = [Bond(peptide.C_alpha, sidechain.C_beta), ]
symbol = 'Cys'
amber_charge = {peptide.H_3: 0.2023, peptide.H_2: 0.2023, sidechain.H_gamma: 0.1975, peptide.C_alpha: 0.0927, peptide.H_alpha: 0.1411, peptide.C: 0.6123, sidechain.H_beta_2: 0.1188, peptide.O: -0.5713, sidechain.S_gamma: -0.3298, sidechain.C_beta: -0.1195, peptide.N: 0.1325, peptide.H_1: 0.2023, sidechain.H_beta_3: 0.1188, }
name = 'cysteine'
chain_links = [None, peptide.C]
