data_QLG
# 
_chem_comp.id                                    QLG 
_chem_comp.name                                  "[(4Z)-2-[(1Z)-4-AMINO-4-OXOBUTANIMIDOYL]-4-(2-METHYLPROPYLIDENE)-5-OXO-4,5-DIHYDRO-1H-IMIDAZOL-1-YL]ACETIC ACID" 
_chem_comp.type                                  "L-PEPTIDE LINKING" 
_chem_comp.pdbx_type                             ATOMP 
_chem_comp.formula                               "C13 H18 N4 O4" 
_chem_comp.mon_nstd_parent_comp_id               "GLN, LEU, GLY" 
_chem_comp.pdbx_synonyms                         "CHROMOPHORE (GLN-LEU-GLY)" 
_chem_comp.pdbx_formal_charge                    0 
_chem_comp.pdbx_initial_date                     2006-09-14 
_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                        294.306 
_chem_comp.one_letter_code                       QLG 
_chem_comp.three_letter_code                     QLG 
_chem_comp.pdbx_model_coordinates_details        ? 
_chem_comp.pdbx_model_coordinates_missing_flag   Y 
_chem_comp.pdbx_ideal_coordinates_details        ? 
_chem_comp.pdbx_ideal_coordinates_missing_flag   N 
_chem_comp.pdbx_model_coordinates_db_code        2IB6 
_chem_comp.pdbx_subcomponent_list                ? 
_chem_comp.pdbx_processing_site                  RCSB 
# 
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 
QLG N1   N    N 0 1 N N N Y Y N 38.949 60.949 10.695 0.973  -2.469 -1.163 N    QLG 1  
QLG CA1  CA1  C 0 1 N N N Y N N 38.381 62.167 10.359 0.910  -2.036 0.050  CA1  QLG 2  
QLG CA2  CA2  C 0 1 N N N Y N N 35.904 63.636 11.390 0.228  1.408  0.500  CA2  QLG 3  
QLG CA3  CA3  C 0 1 N N N Y N N 36.772 60.532 12.917 3.414  -0.382 0.468  CA3  QLG 4  
QLG C3   C    C 0 1 N N N Y N Y 37.737 60.858 14.035 3.771  -0.741 1.878  C    QLG 5  
QLG O3   O    O 0 1 N N N Y N Y 37.630 60.050 14.960 3.328  -0.223 2.893  O    QLG 6  
QLG CB1  CB1  C 0 1 N N N N N N 39.736 62.676 9.999  0.816  -2.929 1.257  CB1  QLG 7  
QLG CB2  CB2  C 0 1 N N N N N N 35.274 64.925 10.903 -0.540 2.494  0.603  CB2  QLG 8  
QLG CG1  CG1  C 0 1 N N N N N N 40.665 63.792 9.605  -0.638 -3.164 1.653  CG1  QLG 9  
QLG CG2  CG2  C 0 1 N N N N N N 34.015 65.468 11.535 -2.044 2.480  0.491  CG2  QLG 10 
QLG CD1  CD1  C 0 1 N N N N N N 32.770 64.658 11.347 -2.496 3.340  -0.690 CD1  QLG 11 
QLG CD2  CD2  C 0 1 N N N N N N 33.933 65.267 13.035 -2.679 2.976  1.790  CD2  QLG 12 
QLG CD3  CD3  C 0 1 N N N N N N 40.706 64.375 8.213  -0.791 -4.005 2.908  CD3  QLG 13 
QLG NE1  NE1  N 0 1 N N N N N N 39.598 64.588 7.539  -2.113 -4.203 3.246  NE1  QLG 14 
QLG OE1  OE1  O 0 1 N N N N N N 41.868 64.600 7.651  0.151  -4.458 3.552  OE1  QLG 15 
QLG C1   C1   C 0 1 N N N Y N N 37.715 62.381 11.683 0.903  -0.564 0.263  C1   QLG 16 
QLG C2   C2   C 0 1 N N N Y N N 35.430 62.246 11.619 1.711  1.446  0.615  C2   QLG 17 
QLG N2   N2   N 0 1 N N N Y N N 37.269 63.610 11.456 -0.198 0.119  0.280  N2   QLG 18 
QLG O2   O2   O 0 1 N N N Y N N 34.266 61.847 11.629 2.399  2.430  0.809  O2   QLG 19 
QLG N3   N3   N 0 1 N N N Y N N 36.618 61.475 11.822 2.056  0.130  0.448  N3   QLG 20 
QLG OXT  OXT  O 0 1 N Y N Y N Y ?      ?      ?      4.679  -1.750 1.883  OXT  QLG 21 
QLG HD11 HD11 H 0 0 N N N N N N 32.310 64.459 12.326 -3.585 3.311  -0.795 HD11 QLG 22 
QLG HD12 HD12 H 0 0 N N N N N N 32.062 65.215 10.716 -2.060 2.979  -1.628 HD12 QLG 23 
QLG HD13 HD13 H 0 0 N N N N N N 33.023 63.704 10.861 -2.199 4.388  -0.562 HD13 QLG 24 
QLG HG2  HG2  H 0 1 N N N N N N 34.066 66.477 11.100 -2.393 1.454  0.314  HG2  QLG 25 
QLG HD21 HD21 H 0 0 N N N N N N 33.913 64.191 13.261 -2.389 4.009  2.011  HD21 QLG 26 
QLG HD22 HD22 H 0 0 N N N N N N 34.810 65.726 13.515 -3.771 2.940  1.725  HD22 QLG 27 
QLG HD23 HD23 H 0 0 N N N N N N 33.016 65.739 13.418 -2.375 2.352  2.638  HD23 QLG 28 
QLG HB2  HB2  H 0 1 N N N N N N 35.734 65.465 10.089 -0.060 3.456  0.780  HB2  QLG 29 
QLG H    HN   H 0 1 N Y N Y Y N 38.666 60.771 11.638 1.010  -1.683 -1.821 HN   QLG 30 
QLG HB11 HB11 H 0 0 N N N N N N 40.243 62.396 10.934 1.342  -3.869 1.060  HB11 QLG 31 
QLG HB12 HB12 H 0 0 N N N N N N 39.518 62.489 8.937  1.343  -2.432 2.079  HB12 QLG 32 
QLG HG11 HG11 H 0 0 N N N N N N 40.400 64.633 10.262 -1.201 -3.640 0.842  HG11 QLG 33 
QLG HG12 HG12 H 0 0 N N N N N N 41.650 63.307 9.679  -1.107 -2.194 1.861  HG12 QLG 34 
QLG HE11 HE11 H 0 0 N N N N N N 39.834 64.974 6.647  -2.876 -3.818 2.699  HE11 QLG 35 
QLG HE12 HE12 H 0 0 N N N N N N 38.672 64.396 7.864  -2.366 -4.748 4.063  HE12 QLG 36 
QLG HA31 HA31 H 0 0 N N N Y N N 35.780 60.431 13.382 4.092  0.395  0.104  HA31 QLG 37 
QLG HA32 HA32 H 0 0 N N N Y N N 37.200 59.636 12.443 3.471  -1.269 -0.168 HA32 QLG 38 
QLG HXT  HXT  H 0 1 N Y N Y N Y ?      ?      ?      4.933  -2.009 2.795  HXT  QLG 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 
QLG N1  CA1  DOUB N N 1  
QLG N1  H    SING N N 2  
QLG CA1 C1   SING N N 3  
QLG CA1 CB1  SING N N 4  
QLG CA2 CB2  DOUB N N 5  
QLG CA2 N2   SING N N 6  
QLG CA2 C2   SING N N 7  
QLG CA3 N3   SING N N 8  
QLG CA3 C3   SING N N 9  
QLG CA3 HA31 SING N N 10 
QLG CA3 HA32 SING N N 11 
QLG C3  OXT  SING N N 12 
QLG C3  O3   DOUB N N 13 
QLG CB1 CG1  SING N N 14 
QLG CB1 HB11 SING N N 15 
QLG CB1 HB12 SING N N 16 
QLG CB2 CG2  SING N N 17 
QLG CB2 HB2  SING N N 18 
QLG CG1 CD3  SING N N 19 
QLG CG1 HG11 SING N N 20 
QLG CG1 HG12 SING N N 21 
QLG CG2 CD1  SING N N 22 
QLG CG2 CD2  SING N N 23 
QLG CG2 HG2  SING N N 24 
QLG CD1 HD11 SING N N 25 
QLG CD1 HD12 SING N N 26 
QLG CD1 HD13 SING N N 27 
QLG CD2 HD21 SING N N 28 
QLG CD2 HD22 SING N N 29 
QLG CD2 HD23 SING N N 30 
QLG CD3 NE1  SING N N 31 
QLG CD3 OE1  DOUB N N 32 
QLG NE1 HE11 SING N N 33 
QLG NE1 HE12 SING N N 34 
QLG C1  N2   DOUB N N 35 
QLG C1  N3   SING N N 36 
QLG C2  N3   SING N N 37 
QLG C2  O2   DOUB N N 38 
QLG OXT HXT  SING N N 39 
# 
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 
QLG SMILES           ACDLabs              10.04 "O=C(N)CCC(=[N@H])C1=N/C(C(=O)N1CC(=O)O)=C/C(C)C"                                                                                     
QLG SMILES_CANONICAL CACTVS               3.341 "CC(C)\C=C/1N=C(N(CC(O)=O)C/1=O)C(=N)CCC(N)=O"                                                                                        
QLG SMILES           CACTVS               3.341 "CC(C)C=C1N=C(N(CC(O)=O)C1=O)C(=N)CCC(N)=O"                                                                                           
QLG SMILES_CANONICAL "OpenEye OEToolkits" 1.5.0 "[H]/N=C(/CCC(=O)N)\C1=NC(=CC(C)C)C(=O)N1CC(=O)O"                                                                                     
QLG SMILES           "OpenEye OEToolkits" 1.5.0 "[H]N=C(CCC(=O)N)C1=NC(=CC(C)C)C(=O)N1CC(=O)O"                                                                                        
QLG InChI            InChI                1.03  "InChI=1S/C13H18N4O4/c1-7(2)5-9-13(21)17(6-11(19)20)12(16-9)8(14)3-4-10(15)18/h5,7,14H,3-4,6H2,1-2H3,(H2,15,18)(H,19,20)/b9-5+,14-8-" 
QLG InChIKey         InChI                1.03  XVNGQKZRCCJECM-AERIRECASA-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 
QLG "SYSTEMATIC NAME" ACDLabs              10.04 "[(4E)-2-[(1Z)-4-amino-4-oxobutanimidoyl]-4-(2-methylpropylidene)-5-oxo-4,5-dihydro-1H-imidazol-1-yl]acetic acid" 
QLG "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.5.0 "2-[2-(4-amino-4-oxo-butanimidoyl)-4-(2-methylpropylidene)-5-oxo-imidazol-1-yl]ethanoic 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 
QLG "Create component"  2006-09-14 RCSB 
QLG "Modify descriptor" 2011-06-04 RCSB 
QLG "Modify synonyms"   2020-06-05 PDBE 
QLG "Modify backbone"   2023-11-03 PDBE 
# 
_pdbx_chem_comp_synonyms.ordinal      1 
_pdbx_chem_comp_synonyms.comp_id      QLG 
_pdbx_chem_comp_synonyms.name         "CHROMOPHORE (GLN-LEU-GLY)" 
_pdbx_chem_comp_synonyms.provenance   ? 
_pdbx_chem_comp_synonyms.type         ? 
# 
