data_MEZ # _chem_comp.id MEZ _chem_comp.name "(2E)-2-METHYLBUT-2-ENEDIOIC ACID" _chem_comp.type NON-POLYMER _chem_comp.pdbx_type HETAIN _chem_comp.formula "C5 H6 O4" _chem_comp.mon_nstd_parent_comp_id ? _chem_comp.pdbx_synonyms "MESACONIC ACID; MESACONATE" _chem_comp.pdbx_formal_charge 0 _chem_comp.pdbx_initial_date 2004-11-18 _chem_comp.pdbx_modified_date 2024-09-27 _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 130.099 _chem_comp.one_letter_code ? _chem_comp.three_letter_code MEZ _chem_comp.pdbx_model_coordinates_details ? _chem_comp.pdbx_model_coordinates_missing_flag N _chem_comp.pdbx_ideal_coordinates_details "not provided" _chem_comp.pdbx_ideal_coordinates_missing_flag Y _chem_comp.pdbx_model_coordinates_db_code 1Y0P _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_backbone_atom_flag _chem_comp_atom.pdbx_n_terminal_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 MEZ O4 O4 O 0 1 N N N N N N 28.622 28.787 73.165 ? ? ? O4 MEZ 1 MEZ C5 C5 C 0 1 N N N N N N 28.259 29.927 73.450 ? ? ? C5 MEZ 2 MEZ O3 O3 O 0 1 N N N N N N 27.160 30.400 72.949 ? ? ? O3 MEZ 3 MEZ C3 C3 C 0 1 N N N N N N 29.134 30.694 74.491 ? ? ? C3 MEZ 4 MEZ C4 C4 C 0 1 N N N N N N 30.310 29.929 75.119 ? ? ? C4 MEZ 5 MEZ C2 C2 C 0 1 N N N N N N 28.766 32.039 74.783 ? ? ? C2 MEZ 6 MEZ C1 C1 C 0 1 N N N N N N 29.430 32.678 75.849 ? ? ? C1 MEZ 7 MEZ O1 O1 O 0 1 N N N N N N 28.753 32.681 76.842 ? ? ? O1 MEZ 8 MEZ O2 O2 O 0 1 N N N N N N 30.609 32.961 75.716 ? ? ? O2 MEZ 9 MEZ HO3 HO3 H 0 1 N N N N N N 26.880 31.281 73.169 ? ? ? HO3 MEZ 10 MEZ H41 1H4 H 0 1 N N N N N N 30.964 29.525 74.311 ? ? ? H41 MEZ 11 MEZ H42 2H4 H 0 1 N N N N N N 30.935 30.477 75.862 ? ? ? H42 MEZ 12 MEZ H43 3H4 H 0 1 N N N N N N 29.936 28.983 75.575 ? ? ? H43 MEZ 13 MEZ H2 H2 H 0 1 N N N N N N 27.992 32.569 74.203 ? ? ? H2 MEZ 14 MEZ HO1 HO1 H 0 1 N N N N N N 29.201 33.112 77.561 ? ? ? HO1 MEZ 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 MEZ O4 C5 DOUB N N 1 MEZ C5 O3 SING N N 2 MEZ C5 C3 SING N N 3 MEZ O3 HO3 SING N N 4 MEZ C3 C4 SING N N 5 MEZ C3 C2 DOUB N E 6 MEZ C4 H41 SING N N 7 MEZ C4 H42 SING N N 8 MEZ C4 H43 SING N N 9 MEZ C2 C1 SING N N 10 MEZ C2 H2 SING N N 11 MEZ C1 O1 SING N N 12 MEZ C1 O2 DOUB N N 13 MEZ O1 HO1 SING N N 14 # 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 MEZ SMILES ACDLabs 10.04 "O=C(O)\C=C(\C(=O)O)C" MEZ SMILES_CANONICAL CACTVS 3.341 "CC(=C\C(O)=O)/C(O)=O" MEZ SMILES CACTVS 3.341 "CC(=CC(O)=O)C(O)=O" MEZ SMILES_CANONICAL "OpenEye OEToolkits" 1.5.0 "C/C(=C\C(=O)O)/C(=O)O" MEZ SMILES "OpenEye OEToolkits" 1.5.0 "CC(=CC(=O)O)C(=O)O" MEZ InChI InChI 1.03 "InChI=1S/C5H6O4/c1-3(5(8)9)2-4(6)7/h2H,1H3,(H,6,7)(H,8,9)/b3-2+" MEZ InChIKey InChI 1.03 HNEGQIOMVPPMNR-NSCUHMNNSA-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 MEZ "SYSTEMATIC NAME" ACDLabs 10.04 "(2E)-2-methylbut-2-enedioic acid" MEZ "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.5.0 "(E)-2-methylbut-2-enedioic acid" # loop_ _pdbx_chem_comp_audit.comp_id _pdbx_chem_comp_audit.action_type _pdbx_chem_comp_audit.date _pdbx_chem_comp_audit.processing_site MEZ "Create component" 2004-11-18 RCSB MEZ "Modify descriptor" 2011-06-04 RCSB MEZ "Modify synonyms" 2020-05-27 PDBE MEZ "Modify PCM" 2024-09-27 PDBE # loop_ _pdbx_chem_comp_synonyms.ordinal _pdbx_chem_comp_synonyms.comp_id _pdbx_chem_comp_synonyms.name _pdbx_chem_comp_synonyms.provenance _pdbx_chem_comp_synonyms.type 1 MEZ "MESACONIC ACID" ? ? 2 MEZ MESACONATE ? ? # loop_ _pdbx_chem_comp_pcm.pcm_id _pdbx_chem_comp_pcm.comp_id _pdbx_chem_comp_pcm.modified_residue_id _pdbx_chem_comp_pcm.type _pdbx_chem_comp_pcm.category _pdbx_chem_comp_pcm.position _pdbx_chem_comp_pcm.polypeptide_position _pdbx_chem_comp_pcm.comp_id_linking_atom _pdbx_chem_comp_pcm.modified_residue_id_linking_atom _pdbx_chem_comp_pcm.uniprot_specific_ptm_accession _pdbx_chem_comp_pcm.uniprot_generic_ptm_accession 1 MEZ ASP None "Covalent chemical modification" "Amino-acid side chain" "Any position" C1 OD2 ? ? 2 MEZ ASP None "Covalent chemical modification" "Amino-acid side chain" "Any position" C5 OD2 ? ? 3 MEZ CYS None "Covalent chemical modification" "Amino-acid side chain" "Any position" C5 SG ? ? #