data_PQ4
# 
_chem_comp.id                                    PQ4 
_chem_comp.name                                  "(2Z)-2-amino-3-(4-hydroxyphenyl)prop-2-enoic acid" 
_chem_comp.type                                  "peptide linking" 
_chem_comp.pdbx_type                             ATOMP 
_chem_comp.formula                               "C9 H9 N O3" 
_chem_comp.mon_nstd_parent_comp_id               ? 
_chem_comp.pdbx_synonyms                         ? 
_chem_comp.pdbx_formal_charge                    0 
_chem_comp.pdbx_initial_date                     2019-08-16 
_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                        179.173 
_chem_comp.one_letter_code                       ? 
_chem_comp.three_letter_code                     PQ4 
_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        6U1A 
_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 
PQ4 N   N1 N 0 1 N N N Y Y N 14.700 0.370  4.092 1.390  1.433  0.517  N   PQ4 1  
PQ4 CA  C1 C 0 1 N N N Y N N 14.608 1.724  3.804 1.802  0.153  0.131  CA  PQ4 2  
PQ4 CB  C2 C 0 1 N N N N N N 13.714 2.725  3.816 0.883  -0.822 -0.070 CB  PQ4 3  
PQ4 CG  C3 C 0 1 Y N N N N N 12.342 2.943  4.238 -0.550 -0.494 -0.064 CG  PQ4 4  
PQ4 CD1 C4 C 0 1 Y N N N N N 11.832 2.275  5.311 -1.490 -1.462 0.307  CD1 PQ4 5  
PQ4 CE1 C5 C 0 1 Y N N N N N 10.524 2.499  5.710 -2.831 -1.150 0.311  CE1 PQ4 6  
PQ4 CZ  C6 C 0 1 Y N N N N N 9.748  3.406  4.996 -3.251 0.124  -0.054 CZ  PQ4 7  
PQ4 OH  O1 O 0 1 N N N N N N 8.464  3.633  5.353 -4.575 0.427  -0.049 OH  PQ4 8  
PQ4 CE2 C7 C 0 1 Y N N N N N 10.261 4.094  3.898 -2.322 1.089  -0.423 CE2 PQ4 9  
PQ4 CD2 C8 C 0 1 Y N N N N N 11.572 3.868  3.533 -0.978 0.789  -0.424 CD2 PQ4 10 
PQ4 C   C9 C 0 1 N N N Y N Y 15.902 2.009  3.197 3.228  -0.134 -0.057 C   PQ4 11 
PQ4 O   O2 O 0 1 N N N Y N Y 15.848 2.827  2.299 3.586  -1.247 -0.392 O   PQ4 12 
PQ4 OXT O3 O 0 1 N Y N Y N Y 17.086 1.523  3.633 4.143  0.837  0.143  OXT PQ4 13 
PQ4 H   H1 H 0 1 N N N Y Y N 13.850 0.061  4.520 0.537  1.554  0.962  H   PQ4 14 
PQ4 H2  H2 H 0 1 N Y N Y Y N 14.852 -0.141 3.246 1.960  2.198  0.343  H2  PQ4 15 
PQ4 HB2 H3 H 0 1 N N N N N N 14.135 3.624  3.391 1.204  -1.840 -0.234 HB2 PQ4 16 
PQ4 HD1 H4 H 0 1 N N N N N N 12.448 1.571  5.851 -1.164 -2.452 0.590  HD1 PQ4 17 
PQ4 HE1 H5 H 0 1 N N N N N N 10.114 1.977  6.562 -3.558 -1.896 0.597  HE1 PQ4 18 
PQ4 HH  H6 H 0 1 N N N N N N 8.247  3.103  6.111 -4.896 0.776  0.794  HH  PQ4 19 
PQ4 HE2 H7 H 0 1 N N N N N N 9.646  4.789  3.345 -2.654 2.077  -0.706 HE2 PQ4 20 
PQ4 HD2 H8 H 0 1 N N N N N N 12.002 4.407  2.702 -0.256 1.539  -0.711 HD2 PQ4 21 
PQ4 HXT H9 H 0 1 N Y N Y N Y 17.793 1.918  3.137 5.071  0.601  0.007  HXT PQ4 22 
# 
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 
PQ4 O   C   DOUB N N 1  
PQ4 C   CA  SING N N 2  
PQ4 CD2 CE2 DOUB Y N 3  
PQ4 CD2 CG  SING Y N 4  
PQ4 CA  CB  DOUB N Z 5  
PQ4 CA  N   SING N N 6  
PQ4 CB  CG  SING N N 7  
PQ4 CE2 CZ  SING Y N 8  
PQ4 CG  CD1 DOUB Y N 9  
PQ4 CZ  OH  SING N N 10 
PQ4 CZ  CE1 DOUB Y N 11 
PQ4 CD1 CE1 SING Y N 12 
PQ4 C   OXT SING N N 13 
PQ4 N   H   SING N N 14 
PQ4 N   H2  SING N N 15 
PQ4 CB  HB2 SING N N 16 
PQ4 CD1 HD1 SING N N 17 
PQ4 CE1 HE1 SING N N 18 
PQ4 OH  HH  SING N N 19 
PQ4 CE2 HE2 SING N N 20 
PQ4 CD2 HD2 SING N N 21 
PQ4 OXT HXT SING N N 22 
# 
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 
PQ4 SMILES           ACDLabs              12.01 "N\C(=C/c1ccc(O)cc1)C(O)=O"                                                       
PQ4 InChI            InChI                1.03  "InChI=1S/C9H9NO3/c10-8(9(12)13)5-6-1-3-7(11)4-2-6/h1-5,11H,10H2,(H,12,13)/b8-5-" 
PQ4 InChIKey         InChI                1.03  VWVGLOXKDVGAFA-YVMONPNESA-N                                                       
PQ4 SMILES_CANONICAL CACTVS               3.385 "N\C(=C/c1ccc(O)cc1)C(O)=O"                                                       
PQ4 SMILES           CACTVS               3.385 "NC(=Cc1ccc(O)cc1)C(O)=O"                                                         
PQ4 SMILES_CANONICAL "OpenEye OEToolkits" 2.0.7 "c1cc(ccc1/C=C(/C(=O)O)\N)O"                                                      
PQ4 SMILES           "OpenEye OEToolkits" 2.0.7 "c1cc(ccc1C=C(C(=O)O)N)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 
PQ4 "SYSTEMATIC NAME" ACDLabs              12.01 "(2Z)-2-amino-3-(4-hydroxyphenyl)prop-2-enoic acid"    
PQ4 "SYSTEMATIC NAME" "OpenEye OEToolkits" 2.0.7 "(~{Z})-2-azanyl-3-(4-hydroxyphenyl)prop-2-enoic 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 
PQ4 "Create component" 2019-08-16 RCSB 
PQ4 "Initial release"  2020-04-22 RCSB 
PQ4 "Modify backbone"  2023-11-03 PDBE 
PQ4 "Modify PCM"       2024-09-27 PDBE 
# 
_pdbx_chem_comp_pcm.pcm_id                             1 
_pdbx_chem_comp_pcm.comp_id                            PQ4 
_pdbx_chem_comp_pcm.modified_residue_id                TYR 
_pdbx_chem_comp_pcm.type                               Dehydrogenation 
_pdbx_chem_comp_pcm.category                           "Named protein modification" 
_pdbx_chem_comp_pcm.position                           "Amino-acid side chain and backbone" 
_pdbx_chem_comp_pcm.polypeptide_position               "Any 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      ? 
# 
