data_7R6
# 
_chem_comp.id                                    7R6 
_chem_comp.name                                  "2-[(4E)-4-[(4-hydroxyphenyl)methylidene]-2-[(E)-2-(1H-imidazol-4-yl)ethenyl]-5-oxidanylidene-imidazol-1-yl]ethanoic acid" 
_chem_comp.type                                  "L-peptide NH3 amino terminus" 
_chem_comp.pdbx_type                             ATOMP 
_chem_comp.formula                               "C17 H14 N4 O4" 
_chem_comp.mon_nstd_parent_comp_id               "HIS, TYR, GLY" 
_chem_comp.pdbx_synonyms                         "RED CHROMOPHORE (HIS, TYR, GLY)" 
_chem_comp.pdbx_formal_charge                    0 
_chem_comp.pdbx_initial_date                     2021-08-21 
_chem_comp.pdbx_modified_date                    2023-11-03 
_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                        338.317 
_chem_comp.one_letter_code                       HYG 
_chem_comp.three_letter_code                     7R6 
_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        6GP1 
_chem_comp.pdbx_subcomponent_list                ? 
_chem_comp.pdbx_processing_site                  PDBE 
# 
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 
7R6 CA1  CA1  C 0 1 N N N Y N N -10.112 7.738  -20.226 2.574  -0.130 0.229  CA1  7R6 1  
7R6 CB1  CB1  C 0 1 N N N N N N -10.828 6.679  -19.867 3.300  -1.234 -0.048 CB1  7R6 2  
7R6 CG1  CG1  C 0 1 Y N N N N N -10.281 5.653  -18.947 4.766  -1.193 0.048  CG1  7R6 3  
7R6 C1   C1   C 0 1 N N N Y N N -10.726 8.718  -21.149 1.115  -0.173 0.139  C1   7R6 4  
7R6 N2   N2   N 0 1 N N N Y N N -11.962 8.623  -21.667 0.421  -1.233 -0.200 N2   7R6 5  
7R6 N3   N3   N 0 1 N N N Y N N -10.124 9.815  -21.623 0.283  0.893  0.406  N3   7R6 6  
7R6 C2   C2   C 0 1 N N N Y N N -11.007 10.440 -22.423 -0.993 0.489  0.221  C2   7R6 7  
7R6 O2   O2   O 0 1 N N N Y N N -10.791 11.541 -23.051 -2.003 1.154  0.362  O2   7R6 8  
7R6 CA2  CA2  C 0 1 N N N Y N N -12.180 9.679  -22.465 -0.905 -0.927 -0.182 CA2  7R6 9  
7R6 CA3  CA3  C 0 1 N N N Y N N -8.779  10.258 -21.214 0.708  2.233  0.818  CA3  7R6 10 
7R6 CB2  CB2  C 0 1 N N N N N N -13.448 9.894  -23.217 -1.955 -1.770 -0.481 CB2  7R6 11 
7R6 CG2  CG2  C 0 1 Y N N N N N -13.952 11.236 -23.603 -3.333 -1.338 -0.238 CG2  7R6 12 
7R6 CD1  CD1  C 0 1 Y N N N N N -14.908 11.854 -22.807 -4.349 -1.682 -1.142 CD1  7R6 13 
7R6 CD2  CD2  C 0 1 Y N N N N N -13.491 11.879 -24.751 -3.644 -0.585 0.903  CD2  7R6 14 
7R6 CE1  CE1  C 0 1 Y N N N N N -15.405 13.109 -23.137 -5.637 -1.276 -0.908 CE1  7R6 15 
7R6 CE2  CE2  C 0 1 Y N N N N N -13.987 13.137 -25.088 -4.936 -0.184 1.126  CE2  7R6 16 
7R6 CZ   CZ   C 0 1 Y N N N N N -14.944 13.751 -24.280 -5.938 -0.523 0.222  CZ   7R6 17 
7R6 OH   OH   O 0 1 N N N N N N -15.393 14.885 -24.571 -7.215 -0.124 0.448  OH   7R6 18 
7R6 C3   C    C 0 1 N N N Y N Y -7.630  10.063 -22.181 0.926  3.089  -0.403 C    7R6 19 
7R6 O3   O    O 0 1 N N N Y N Y -6.620  10.800 -22.069 0.745  2.628  -1.504 O    7R6 20 
7R6 CD3  CD3  C 0 1 Y N N N N N -10.967 4.523  -18.529 5.621  -2.229 -0.202 CD3  7R6 21 
7R6 NE1  NE1  N 0 1 Y N N N N N -10.153 3.830  -17.705 6.882  -1.755 0.006  NE1  7R6 22 
7R6 ND1  ND1  N 0 1 Y N N N N N -9.068  5.631  -18.359 5.517  -0.117 0.395  ND1  7R6 23 
7R6 CE3  CE3  C 0 1 Y N N N N N -8.997  4.513  -17.604 6.775  -0.453 0.376  CE3  7R6 24 
7R6 OXT  OXT  O 0 1 N Y N Y N Y -7.743  9.097  -23.110 1.322  4.365  -0.266 OXT  7R6 25 
7R6 HA1  HA11 H 0 0 N N N Y N N -9.108  7.880  -19.854 3.070  0.784  0.521  HA11 7R6 26 
7R6 HB11 HB11 H 0 0 N N N N N N -11.830 6.563  -20.253 2.804  -2.148 -0.340 HB11 7R6 27 
7R6 HA31 HA31 H 0 0 N N N Y N N -8.524  9.714  -20.292 -0.062 2.683  1.444  HA31 7R6 28 
7R6 HA32 HA32 H 0 0 N N N Y N N -8.843  11.335 -20.998 1.638  2.161  1.382  HA32 7R6 29 
7R6 HB21 HB21 H 0 0 N N N N N N -14.031 9.029  -23.496 -1.761 -2.749 -0.895 HB21 7R6 30 
7R6 HD1  HD1  H 0 1 N N N N N N -15.269 11.353 -21.921 -4.117 -2.266 -2.020 HD1  7R6 31 
7R6 HD2  HD2  H 0 1 N N N N N N -12.751 11.403 -25.378 -2.867 -0.320 1.605  HD2  7R6 32 
7R6 HE1  HE1  H 0 1 N N N N N N -16.145 13.583 -22.509 -6.420 -1.540 -1.603 HE1  7R6 33 
7R6 HE2  HE2  H 0 1 N N N N N N -13.630 13.637 -25.976 -5.177 0.397  2.004  HE2  7R6 34 
7R6 HD3  HD3  H 0 1 N N N N N N -11.972 4.247  -18.812 5.350  -3.229 -0.506 HD3  7R6 35 
7R6 HNE1 HNE1 H 0 0 N N N N N N -10.369 2.965  -17.251 7.706  -2.257 -0.091 HNE1 7R6 36 
7R6 HE3  HE3  H 0 1 N N N N N N -8.145  4.214  -17.011 7.602  0.201  0.612  HE3  7R6 37 
7R6 HXT  HXT  H 0 1 N Y N Y N Y -6.956  9.075  -23.642 1.449  4.874  -1.078 HXT  7R6 38 
7R6 H1   H1   H 0 1 N N N N N N -16.031 15.151 -23.919 -7.432 0.737  0.064  H1   7R6 39 
# 
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 
7R6 CE2 CD2  DOUB Y N 1  
7R6 CE2 CZ   SING Y N 2  
7R6 CD2 CG2  SING Y N 3  
7R6 OH  CZ   SING N N 4  
7R6 CZ  CE1  DOUB Y N 5  
7R6 CG2 CB2  SING N N 6  
7R6 CG2 CD1  DOUB Y N 7  
7R6 CB2 CA2  DOUB N E 8  
7R6 CE1 CD1  SING Y N 9  
7R6 O2  C2   DOUB N N 10 
7R6 CA2 C2   SING N N 11 
7R6 CA2 N2   SING N N 12 
7R6 C2  N3   SING N N 13 
7R6 C3  O3   DOUB N N 14 
7R6 C3  CA3  SING N N 15 
7R6 N2  C1   DOUB N N 16 
7R6 N3  CA3  SING N N 17 
7R6 N3  C1   SING N N 18 
7R6 C1  CA1  SING N N 19 
7R6 CA1 CB1  DOUB N E 20 
7R6 CB1 CG1  SING N N 21 
7R6 CG1 CD3  DOUB Y N 22 
7R6 CG1 ND1  SING Y N 23 
7R6 CD3 NE1  SING Y N 24 
7R6 ND1 CE3  DOUB Y N 25 
7R6 NE1 CE3  SING Y N 26 
7R6 C3  OXT  SING N N 27 
7R6 CA1 HA1  SING N N 28 
7R6 CB1 HB11 SING N N 29 
7R6 CA3 HA31 SING N N 30 
7R6 CA3 HA32 SING N N 31 
7R6 CB2 HB21 SING N N 32 
7R6 CD1 HD1  SING N N 33 
7R6 CD2 HD2  SING N N 34 
7R6 CE1 HE1  SING N N 35 
7R6 CE2 HE2  SING N N 36 
7R6 CD3 HD3  SING N N 37 
7R6 NE1 HNE1 SING N N 38 
7R6 CE3 HE3  SING N N 39 
7R6 OXT HXT  SING N N 40 
7R6 OH  H1   SING N N 41 
# 
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 
7R6 InChI            InChI                1.03  "InChI=1S/C17H14N4O4/c22-13-4-1-11(2-5-13)7-14-17(25)21(9-16(23)24)15(20-14)6-3-12-8-18-10-19-12/h1-8,10,22H,9H2,(H,18,19)(H,23,24)/b6-3+,14-7+" 
7R6 InChIKey         InChI                1.03  STRYMBWJHWRMBE-OPACAPKMSA-N                                                                                                                      
7R6 SMILES_CANONICAL CACTVS               3.385 "OC(=O)CN1C(=O)C(=C/c2ccc(O)cc2)\N=C1\C=C\c3c[nH]cn3"                                                                                            
7R6 SMILES           CACTVS               3.385 "OC(=O)CN1C(=O)C(=Cc2ccc(O)cc2)N=C1C=Cc3c[nH]cn3"                                                                                                
7R6 SMILES_CANONICAL "OpenEye OEToolkits" 2.0.7 "c1cc(ccc1/C=C/2\C(=O)N(C(=N2)/C=C/c3c[nH]cn3)CC(=O)O)O"                                                                                         
7R6 SMILES           "OpenEye OEToolkits" 2.0.7 "c1cc(ccc1C=C2C(=O)N(C(=N2)C=Cc3c[nH]cn3)CC(=O)O)O"                                                                                              
# 
_pdbx_chem_comp_identifier.comp_id           7R6 
_pdbx_chem_comp_identifier.type              "SYSTEMATIC NAME" 
_pdbx_chem_comp_identifier.program           "OpenEye OEToolkits" 
_pdbx_chem_comp_identifier.program_version   2.0.7 
_pdbx_chem_comp_identifier.identifier        "2-[(4~{E})-4-[(4-hydroxyphenyl)methylidene]-2-[(~{E})-2-(1~{H}-imidazol-4-yl)ethenyl]-5-oxidanylidene-imidazol-1-yl]ethanoic acid" 
# 
_pdbx_chem_comp_synonyms.ordinal      1 
_pdbx_chem_comp_synonyms.comp_id      7R6 
_pdbx_chem_comp_synonyms.name         "RED CHROMOPHORE (HIS, TYR, GLY)" 
_pdbx_chem_comp_synonyms.provenance   PDB 
_pdbx_chem_comp_synonyms.type         ? 
# 
loop_
_pdbx_chem_comp_audit.comp_id 
_pdbx_chem_comp_audit.action_type 
_pdbx_chem_comp_audit.date 
_pdbx_chem_comp_audit.processing_site 
7R6 "Create component" 2021-08-21 PDBE 
7R6 "Initial release"  2021-09-01 RCSB 
7R6 "Modify backbone"  2023-11-03 PDBE 
# 
