H_alpha = Atom('h')
C_alpha = Atom('c')
N = Atom('n')
O = Atom('o')
C = Atom('c')
bonds = [Bond(N, C_alpha), Bond(C_alpha, H_alpha), Bond(C_alpha, C), Bond(C, O), ]
pdbmap = [('', {'N': N, 'O': O, 'HA': H_alpha, 'CA': C_alpha, 'C': C, }, ), ]
pdb_alternative = {'HN': 'H', }
name = 'peptide in proline'
amber_atom_type = {N: 'N', H_alpha: 'H1', O: 'O', C: 'C', C_alpha: 'CT', }
