loop_ _ma_angle_restraints.ordinal_id _ma_angle_restraints.restraint_id _ma_angle_restraints.entity_id_1 _ma_angle_restraints.asym_id_1 _ma_angle_restraints.seq_id_1 _ma_angle_restraints.comp_id_1 _ma_angle_restraints.atom_id_1 _ma_angle_restraints.entity_id_2 _ma_angle_restraints.asym_id_2 _ma_angle_restraints.seq_id_2 _ma_angle_restraints.comp_id_2 _ma_angle_restraints.atom_id_2 _ma_angle_restraints.entity_id_3 _ma_angle_restraints.asym_id_3 _ma_angle_restraints.seq_id_3 _ma_angle_restraints.comp_id_3 _ma_angle_restraints.atom_id_3 _ma_angle_restraints.lower_limit _ma_angle_restraints.upper_limit _ma_angle_restraints.restraint_type _ma_angle_restraints.name 1 2 1 A 21 ALA N 1 A 21 ALA CA 1 A 21 ALA C 1 -60.0 -40.0 'upper and lower bound' . 2 2 1 A 21 ALA C 1 A 22 THR N 1 A 22 THR CA 1 -60.0 -40.0 'upper and lower bound' . 3 2 1 A 23 LYS C 1 A 24 ASP N 1 A 24 ASP CA 1 -60.0 -40.0 'upper and lower bound' . 4 2 1 A 24 ASP N 1 A 24 ASP CA 1 A 24 ASP C 1 90.0 120.0 'upper and lower bound' . 5 2 1 A 15 GLY C 1 A 16 ASN N 1 A 16 ASN CA 1 -60.0 -40.0 'upper and lower bound' . 6 2 1 A 16 ASN N 1 A 16 ASN CA 1 A 16 ASN C 1 90.0 120.0 'upper and lower bound' . 7 2 1 A 16 ASN N 1 A 16 ASN CA 1 A 16 ASN C 1 140.0 170.0 'upper and lower bound' . # ... abbreviated ...