data_A1BNQ # _chem_comp.id A1BNQ _chem_comp.name "acetoacetyl group" _chem_comp.type non-polymer _chem_comp.pdbx_type HETAIN _chem_comp.formula "C4 H6 O2" _chem_comp.mon_nstd_parent_comp_id ? _chem_comp.pdbx_synonyms ? _chem_comp.pdbx_formal_charge 0 _chem_comp.pdbx_initial_date 2025-01-07 _chem_comp.pdbx_modified_date 2025-08-22 _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 86.089 _chem_comp.one_letter_code ? _chem_comp.three_letter_code A1BNQ _chem_comp.pdbx_model_coordinates_details ? _chem_comp.pdbx_model_coordinates_missing_flag N _chem_comp.pdbx_ideal_coordinates_details Corina _chem_comp.pdbx_ideal_coordinates_missing_flag N _chem_comp.pdbx_model_coordinates_db_code 9BWP _chem_comp.pdbx_subcomponent_list ? _chem_comp.pdbx_processing_site RCSB _chem_comp.pdbx_pcm Y # 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.pdbx_n_terminal_atom_flag _chem_comp_atom.pdbx_backbone_atom_flag _chem_comp_atom.pdbx_c_terminal_atom_flag _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 A1BNQ C1 C1 C 0 1 N N N N N N 27.243 2.048 16.335 -1.467 -0.089 -0.356 C1 A1BNQ 1 A1BNQ O1 O1 O 0 1 N N N N N N 27.358 2.895 15.518 -2.419 0.079 0.369 O1 A1BNQ 2 A1BNQ C2 C2 C 0 1 N N N N N N 26.923 0.619 15.929 -0.253 0.794 -0.221 C2 A1BNQ 3 A1BNQ C3 C3 C 0 1 N N N N N N 25.612 0.213 16.583 0.969 -0.062 -0.012 C3 A1BNQ 4 A1BNQ O3 O2 O 0 1 N N N N N N 25.623 -0.388 17.604 0.866 -1.264 0.024 O3 A1BNQ 5 A1BNQ C4 C4 C 0 1 N N N N N N 24.296 0.591 15.911 2.322 0.584 0.152 C4 A1BNQ 6 A1BNQ H1 H1 H 0 1 N Y N N N N 27.367 2.292 17.380 -1.485 -0.874 -1.097 H1 A1BNQ 7 A1BNQ H2B H2 H 0 1 N N N N N N 26.827 0.557 14.835 -0.132 1.386 -1.129 H2B A1BNQ 8 A1BNQ H2A H3 H 0 1 N N N N N N 27.728 -0.051 16.265 -0.381 1.460 0.632 H2A A1BNQ 9 A1BNQ H4B H4 H 0 1 N N N N N N 23.455 0.223 16.517 2.504 0.782 1.208 H4B A1BNQ 10 A1BNQ H4C H5 H 0 1 N N N N N N 24.231 1.685 15.821 3.092 -0.086 -0.231 H4C A1BNQ 11 A1BNQ H4A H6 H 0 1 N N N N N N 24.252 0.138 14.910 2.346 1.521 -0.404 H4A A1BNQ 12 # 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 A1BNQ C1 O1 DOUB N N 1 A1BNQ C1 C2 SING N N 2 A1BNQ C2 C3 SING N N 3 A1BNQ C3 O3 DOUB N N 4 A1BNQ C3 C4 SING N N 5 A1BNQ C1 H1 SING N N 6 A1BNQ C2 H2B SING N N 7 A1BNQ C2 H2A SING N N 8 A1BNQ C4 H4B SING N N 9 A1BNQ C4 H4C SING N N 10 A1BNQ C4 H4A SING N N 11 # 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 A1BNQ SMILES ACDLabs 14.52 "CC(=O)CC=O" A1BNQ InChI InChI 1.06 "InChI=1S/C4H6O2/c1-4(6)2-3-5/h3H,2H2,1H3" A1BNQ InChIKey InChI 1.06 PKQIDSVLSKFZQC-UHFFFAOYSA-N A1BNQ SMILES_CANONICAL CACTVS 3.385 "CC(=O)CC=O" A1BNQ SMILES CACTVS 3.385 "CC(=O)CC=O" A1BNQ SMILES_CANONICAL "OpenEye OEToolkits" 3.1.0.0 "CC(=O)CC=O" A1BNQ SMILES "OpenEye OEToolkits" 3.1.0.0 "CC(=O)CC=O" # 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 A1BNQ "SYSTEMATIC NAME" ACDLabs 14.52 3-oxobutanal A1BNQ "SYSTEMATIC NAME" "OpenEye OEToolkits" 3.1.0.0 3-oxidanylidenebutanal # _pdbx_chem_comp_pcm.pcm_id 1 _pdbx_chem_comp_pcm.comp_id A1BNQ _pdbx_chem_comp_pcm.modified_residue_id CYS _pdbx_chem_comp_pcm.type None _pdbx_chem_comp_pcm.category "Covalent chemical modification" _pdbx_chem_comp_pcm.position "Amino-acid side chain" _pdbx_chem_comp_pcm.polypeptide_position "Any position" _pdbx_chem_comp_pcm.comp_id_linking_atom C1 _pdbx_chem_comp_pcm.modified_residue_id_linking_atom SG _pdbx_chem_comp_pcm.uniprot_specific_ptm_accession ? _pdbx_chem_comp_pcm.uniprot_generic_ptm_accession ? # loop_ _pdbx_chem_comp_audit.comp_id _pdbx_chem_comp_audit.action_type _pdbx_chem_comp_audit.date _pdbx_chem_comp_audit.processing_site A1BNQ "Create component" 2025-01-07 RCSB A1BNQ "Initial release" 2025-08-27 RCSB #