# data_comp_list loop_ _chem_comp.id _chem_comp.three_letter_code _chem_comp.name _chem_comp.group _chem_comp.number_atoms_all _chem_comp.number_atoms_nh _chem_comp.desc_level HAD HAD '(CARBOXYHYDROXYAMINO)ETHANOIC ACID ' non-polymer 14 9 M # data_comp_HAD # loop_ _chem_comp_atom.comp_id _chem_comp_atom.atom_id _chem_comp_atom.type_symbol _chem_comp_atom.type_energy _chem_comp_atom.partial_charge HAD C1 C . 0.000 HAD C2 C . 0.000 HAD O1 O . 0.000 HAD O2 O . 0.000 HAD N N . 0.000 HAD OH O . 0.000 HAD C C . 0.000 HAD O O . 0.000 HAD OXT O . 0.000 HAD H11 H . 0.000 HAD H12 H . 0.000 HAD HO2 H . 0.000 HAD HO H . 0.000 HAD HXT H . 0.000 loop_ _chem_comp_bond.comp_id _chem_comp_bond.atom_id_1 _chem_comp_bond.atom_id_2 _chem_comp_bond.type HAD C1 C2 single HAD C1 N single HAD C1 H11 single HAD C1 H12 single HAD C2 O1 double HAD C2 O2 single HAD O2 HO2 single HAD N C single HAD N OH single HAD OH HO single HAD C O double HAD C OXT single HAD OXT HXT single