sidechain = Group('leu_sidechain_noh')
peptide = Group('peptide_nt_noh')
bonds = [Bond(peptide.C_alpha, sidechain.C_beta), ]
symbol = 'Leu'
amber_charge = {sidechain.C_gamma: 0.3421, peptide.C_alpha: 0.0104, sidechain.C_delta_1: -0.4106, peptide.O: -0.5713, peptide.N: 0.101, peptide.C: 0.6123, sidechain.C_delta_2: -0.4104, sidechain.C_beta: -0.0244, }
name = 'leucine'
chain_links = [None, peptide.C]
