sidechain = Group('ala_sidechain')
peptide = Group('peptide_ct')
bonds = [Bond(peptide.C_alpha, sidechain.C_beta), ]
symbol = 'Ala'
amber_charge = {peptide.O_2: -0.8055, peptide.C_alpha: -0.1747, peptide.H: 0.2681, peptide.H_alpha: 0.1067, sidechain.H_beta_1: 0.0764, sidechain.H_beta_2: 0.0764, peptide.O: -0.8055, sidechain.H_beta_3: 0.0764, sidechain.C_beta: -0.2093, peptide.N: -0.3821, peptide.C: 0.7731, }
name = 'alanine'
chain_links = [peptide.N, None]
