data_XAN # _chem_comp.id XAN _chem_comp.name XANTHINE _chem_comp.type NON-POLYMER _chem_comp.pdbx_type HETAIN _chem_comp.formula "C5 H4 N4 O2" _chem_comp.mon_nstd_parent_comp_id ? _chem_comp.pdbx_synonyms ? _chem_comp.pdbx_formal_charge 0 _chem_comp.pdbx_initial_date 1999-07-08 _chem_comp.pdbx_modified_date 2011-06-04 _chem_comp.pdbx_ambiguous_flag N _chem_comp.pdbx_release_status REL _chem_comp.pdbx_replaced_by ? _chem_comp.pdbx_replaces ? _chem_comp.formula_weight 152.111 _chem_comp.one_letter_code ? _chem_comp.three_letter_code XAN _chem_comp.pdbx_model_coordinates_details ? _chem_comp.pdbx_model_coordinates_missing_flag N _chem_comp.pdbx_ideal_coordinates_details ? _chem_comp.pdbx_ideal_coordinates_missing_flag N _chem_comp.pdbx_model_coordinates_db_code 1A96 _chem_comp.pdbx_subcomponent_list ? _chem_comp.pdbx_processing_site PDBJ # loop_ _chem_comp_atom.comp_id _chem_comp_atom.atom_id _chem_comp_atom.alt_atom_id _chem_comp_atom.type_symbol _chem_comp_atom.charge _chem_comp_atom.pdbx_align _chem_comp_atom.pdbx_aromatic_flag _chem_comp_atom.pdbx_leaving_atom_flag _chem_comp_atom.pdbx_stereo_config _chem_comp_atom.model_Cartn_x _chem_comp_atom.model_Cartn_y _chem_comp_atom.model_Cartn_z _chem_comp_atom.pdbx_model_Cartn_x_ideal _chem_comp_atom.pdbx_model_Cartn_y_ideal _chem_comp_atom.pdbx_model_Cartn_z_ideal _chem_comp_atom.pdbx_component_atom_id _chem_comp_atom.pdbx_component_comp_id _chem_comp_atom.pdbx_ordinal XAN N9 N9 N 0 1 Y N N 21.757 136.775 25.807 -1.427 -0.001 1.859 N9 XAN 1 XAN C4 C4 C 0 1 Y N N 21.842 136.019 26.952 -0.886 -0.000 0.612 C4 XAN 2 XAN N3 N3 N 0 1 Y N N 22.674 134.974 27.120 -1.404 0.003 -0.662 N3 XAN 3 XAN C2 C2 C 0 1 Y N N 22.632 134.462 28.385 -0.593 -0.001 -1.734 C2 XAN 4 XAN O2 O2 O 0 1 N N N 23.379 133.524 28.695 -1.088 -0.001 -2.845 O2 XAN 5 XAN N1 N1 N 0 1 Y N N 21.767 135.004 29.348 0.745 -0.000 -1.622 N1 XAN 6 XAN C6 C6 C 0 1 Y N N 20.909 136.080 29.194 1.340 -0.000 -0.409 C6 XAN 7 XAN O6 O6 O 0 1 N N N 20.232 136.489 30.138 2.553 0.000 -0.311 O6 XAN 8 XAN C5 C5 C 0 1 Y N N 20.983 136.581 27.863 0.492 -0.000 0.783 C5 XAN 9 XAN N7 N7 N 0 1 Y N N 20.351 137.667 27.293 0.735 0.000 2.116 N7 XAN 10 XAN C8 C8 C 0 1 Y N N 20.842 137.748 26.086 -0.398 -0.000 2.755 C8 XAN 11 XAN HN9 HN9 H 0 1 N N N 22.266 136.641 24.933 -2.373 -0.001 2.073 HN9 XAN 12 XAN HN3 HN3 H 0 1 N N N 23.628 135.220 26.857 -2.365 0.008 -0.788 HN3 XAN 13 XAN HN1 HN1 H 0 1 N N N 21.761 134.564 30.268 1.292 -0.000 -2.423 HN1 XAN 14 XAN H8 H8 H 0 1 N N N 20.523 138.540 25.388 -0.508 -0.000 3.829 H8 XAN 15 # loop_ _chem_comp_bond.comp_id _chem_comp_bond.atom_id_1 _chem_comp_bond.atom_id_2 _chem_comp_bond.value_order _chem_comp_bond.pdbx_aromatic_flag _chem_comp_bond.pdbx_stereo_config _chem_comp_bond.pdbx_ordinal XAN N9 C4 SING Y N 1 XAN N9 C8 SING Y N 2 XAN N9 HN9 SING N N 3 XAN C4 N3 SING Y N 4 XAN C4 C5 DOUB Y N 5 XAN N3 C2 SING Y N 6 XAN N3 HN3 SING N N 7 XAN C2 O2 DOUB N N 8 XAN C2 N1 SING Y N 9 XAN N1 C6 SING Y N 10 XAN N1 HN1 SING N N 11 XAN C6 O6 DOUB N N 12 XAN C6 C5 SING Y N 13 XAN C5 N7 SING Y N 14 XAN N7 C8 DOUB Y N 15 XAN C8 H8 SING N N 16 # loop_ _pdbx_chem_comp_descriptor.comp_id _pdbx_chem_comp_descriptor.type _pdbx_chem_comp_descriptor.program _pdbx_chem_comp_descriptor.program_version _pdbx_chem_comp_descriptor.descriptor XAN SMILES ACDLabs 10.04 "O=C2c1ncnc1NC(=O)N2" XAN SMILES_CANONICAL CACTVS 3.341 "O=C1NC(=O)c2nc[nH]c2N1" XAN SMILES CACTVS 3.341 "O=C1NC(=O)c2nc[nH]c2N1" XAN SMILES_CANONICAL "OpenEye OEToolkits" 1.5.0 "c1[nH]c2c(n1)C(=O)NC(=O)N2" XAN SMILES "OpenEye OEToolkits" 1.5.0 "c1[nH]c2c(n1)C(=O)NC(=O)N2" XAN InChI InChI 1.03 "InChI=1S/C5H4N4O2/c10-4-2-3(7-1-6-2)8-5(11)9-4/h1H,(H3,6,7,8,9,10,11)" XAN InChIKey InChI 1.03 LRFVTYWOQMYALW-UHFFFAOYSA-N # loop_ _pdbx_chem_comp_identifier.comp_id _pdbx_chem_comp_identifier.type _pdbx_chem_comp_identifier.program _pdbx_chem_comp_identifier.program_version _pdbx_chem_comp_identifier.identifier XAN "SYSTEMATIC NAME" ACDLabs 10.04 3,9-dihydro-1H-purine-2,6-dione XAN "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.5.0 3,9-dihydropurine-2,6-dione # loop_ _pdbx_chem_comp_audit.comp_id _pdbx_chem_comp_audit.action_type _pdbx_chem_comp_audit.date _pdbx_chem_comp_audit.processing_site XAN "Create component" 1999-07-08 PDBJ XAN "Modify descriptor" 2011-06-04 RCSB #