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  ? ? 
# 
