data_IEK
# 
_chem_comp.id                                    IEK 
_chem_comp.name                                  "(2S)-2-[(2-azanyl-4-oxidanylidene-3H-pteridin-7-yl)carbonylamino]-3-phenyl-propanoic acid" 
_chem_comp.type                                  non-polymer 
_chem_comp.pdbx_type                             HETAIN 
_chem_comp.formula                               "C16 H14 N6 O4" 
_chem_comp.mon_nstd_parent_comp_id               ? 
_chem_comp.pdbx_synonyms                         "(2-amino-4-oxo-3,4-dihydropteridine-7-carbonyl)-D-tyrosine" 
_chem_comp.pdbx_formal_charge                    0 
_chem_comp.pdbx_initial_date                     2022-06-28 
_chem_comp.pdbx_modified_date                    2022-12-16 
_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                        354.320 
_chem_comp.one_letter_code                       ? 
_chem_comp.three_letter_code                     IEK 
_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        7XZU 
_chem_comp.pdbx_subcomponent_list                ? 
_chem_comp.pdbx_processing_site                  PDBJ 
# 
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.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 
IEK N   N1  N 0 1 N N N 4.191  -24.176 -13.107 -1.523 -0.763 -0.273 N   IEK 1  
IEK C   C1  C 0 1 N N N 2.968  -23.372 -15.102 -3.199 -2.397 -0.915 C   IEK 2  
IEK O   O1  O 0 1 N N N 2.011  -23.998 -14.587 -4.447 -2.881 -1.011 O   IEK 3  
IEK C6  C2  C 0 1 Y N N 3.556  -24.327 -9.597  1.566  -1.449 1.676  C6  IEK 4  
IEK C4  C3  C 0 1 N N N 3.458  -27.583 -7.910  4.812  -0.130 0.642  C4  IEK 5  
IEK C7  C4  C 0 1 Y N N 4.057  -24.702 -10.850 0.735  -0.945 0.669  C7  IEK 6  
IEK C2  C5  C 0 1 N N N 4.265  -29.220 -9.496  4.369  1.087  -1.328 C2  IEK 7  
IEK N1  N2  N 0 1 N N N 4.442  -28.250 -10.417 3.087  0.820  -1.301 N1  IEK 8  
IEK CD1 C6  C 0 1 Y N N 7.427  -24.193 -13.486 -4.501 1.693  0.690  CD1 IEK 9  
IEK CE1 C7  C 0 1 Y N N 8.581  -23.883 -12.751 -4.370 2.894  1.362  CE1 IEK 10 
IEK CZ  C8  C 0 1 Y N N 9.127  -22.597 -12.845 -3.318 3.741  1.066  CZ  IEK 11 
IEK CE2 C9  C 0 1 Y N N 8.529  -21.621 -13.653 -2.397 3.386  0.098  CE2 IEK 12 
IEK CD2 C10 C 0 1 Y N N 7.376  -21.937 -14.385 -2.527 2.185  -0.573 CD2 IEK 13 
IEK CG  C11 C 0 1 Y N N 6.818  -23.224 -14.301 -3.576 1.336  -0.273 CG  IEK 14 
IEK CB  C12 C 0 1 N N N 5.549  -23.578 -15.104 -3.719 0.026  -1.006 CB  IEK 15 
IEK CA  C13 C 0 1 N N S 4.280  -23.271 -14.277 -2.956 -1.065 -0.252 CA  IEK 16 
IEK OXT O2  O 0 1 N N N 2.916  -22.778 -16.200 -2.270 -3.029 -1.359 OXT IEK 17 
IEK CAL C14 C 0 1 N N N 4.222  -23.723 -11.840 -0.718 -1.246 0.694  CAL IEK 18 
IEK OAQ O3  O 0 1 N N N 4.267  -22.525 -11.551 -1.182 -1.927 1.587  OAQ IEK 19 
IEK N8  N3  N 0 1 Y N N 4.327  -26.007 -11.088 1.236  -0.200 -0.308 N8  IEK 20 
IEK C8A C15 C 0 1 Y N N 4.148  -26.957 -10.145 2.540  0.068  -0.327 C8A IEK 21 
IEK N2  N4  N 0 1 N N N 4.553  -30.483 -9.781  4.853  1.860  -2.352 N2  IEK 22 
IEK N3  N5  N 0 1 N N N 3.770  -28.910 -8.220  5.245  0.635  -0.386 N3  IEK 23 
IEK O4  O4  O 0 1 N N N 3.021  -27.320 -6.791  5.581  -0.541 1.491  O4  IEK 24 
IEK C4A C16 C 0 1 Y N N 3.654  -26.596 -8.879  3.372  -0.447 0.696  C4A IEK 25 
IEK N5  N6  N 0 1 Y N N 3.366  -25.311 -8.613  2.858  -1.189 1.666  N5  IEK 26 
IEK H1  H1  H 0 1 N N N 4.105  -25.160 -13.265 -1.152 -0.219 -0.986 H1  IEK 27 
IEK H2  H2  H 0 1 N N N 1.254  -23.947 -15.159 -4.553 -3.739 -1.444 H2  IEK 28 
IEK H3  H3  H 0 1 N N N 3.319  -23.294 -9.390  1.145  -2.050 2.468  H3  IEK 29 
IEK H4  H4  H 0 1 N N N 7.003  -25.185 -13.425 -5.323 1.032  0.921  H4  IEK 30 
IEK H5  H5  H 0 1 N N N 9.043  -24.628 -12.120 -5.090 3.171  2.117  H5  IEK 31 
IEK H6  H6  H 0 1 N N N 10.020 -22.355 -12.288 -3.216 4.679  1.590  H6  IEK 32 
IEK H7  H7  H 0 1 N N N 8.954  -20.630 -13.712 -1.575 4.048  -0.133 H7  IEK 33 
IEK H8  H8  H 0 1 N N N 6.916  -21.190 -15.015 -1.805 1.905  -1.326 H8  IEK 34 
IEK H9  H9  H 0 1 N N N 5.530  -22.985 -16.030 -4.773 -0.243 -1.066 H9  IEK 35 
IEK H10 H10 H 0 1 N N N 5.567  -24.649 -15.355 -3.311 0.126  -2.011 H10 IEK 36 
IEK H11 H11 H 0 1 N N N 4.363  -22.237 -13.911 -3.304 -1.105 0.780  H11 IEK 37 
IEK H12 H12 H 0 1 N N N 4.905  -30.724 -10.686 5.798  2.072  -2.394 H12 IEK 38 
IEK H13 H13 H 0 1 N N N 4.418  -31.194 -9.091  4.250  2.194  -3.034 H13 IEK 39 
IEK H14 H14 H 0 1 N N N 3.642  -29.631 -7.539  6.186  0.863  -0.454 H14 IEK 40 
# 
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 
IEK OXT C   DOUB N N 1  
IEK CB  CG  SING N N 2  
IEK CB  CA  SING N N 3  
IEK C   O   SING N N 4  
IEK C   CA  SING N N 5  
IEK CD2 CG  DOUB Y N 6  
IEK CD2 CE2 SING Y N 7  
IEK CG  CD1 SING Y N 8  
IEK CA  N   SING N N 9  
IEK CE2 CZ  DOUB Y N 10 
IEK CD1 CE1 DOUB Y N 11 
IEK N   CAL SING N N 12 
IEK CZ  CE1 SING Y N 13 
IEK CAL OAQ DOUB N N 14 
IEK CAL C7  SING N N 15 
IEK N8  C7  SING Y N 16 
IEK N8  C8A DOUB Y N 17 
IEK C7  C6  DOUB Y N 18 
IEK N1  C8A SING N N 19 
IEK N1  C2  DOUB N N 20 
IEK C8A C4A SING Y N 21 
IEK N2  C2  SING N N 22 
IEK C6  N5  SING Y N 23 
IEK C2  N3  SING N N 24 
IEK C4A N5  DOUB Y N 25 
IEK C4A C4  SING N N 26 
IEK N3  C4  SING N N 27 
IEK C4  O4  DOUB N N 28 
IEK N   H1  SING N N 29 
IEK O   H2  SING N N 30 
IEK C6  H3  SING N N 31 
IEK CD1 H4  SING N N 32 
IEK CE1 H5  SING N N 33 
IEK CZ  H6  SING N N 34 
IEK CE2 H7  SING N N 35 
IEK CD2 H8  SING N N 36 
IEK CB  H9  SING N N 37 
IEK CB  H10 SING N N 38 
IEK CA  H11 SING N N 39 
IEK N2  H12 SING N N 40 
IEK N2  H13 SING N N 41 
IEK N3  H14 SING N N 42 
# 
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 
IEK InChI            InChI                1.06  "InChI=1S/C16H14N6O4/c17-16-21-12-11(14(24)22-16)18-7-10(19-12)13(23)20-9(15(25)26)6-8-4-2-1-3-5-8/h1-5,7,9H,6H2,(H,20,23)(H,25,26)(H3,17,19,21,22,24)/t9-/m0/s1" 
IEK InChIKey         InChI                1.06  AJHMFJMLQDPCOX-VIFPVBQESA-N                                                                                                                                       
IEK SMILES_CANONICAL CACTVS               3.385 "NC1=Nc2nc(cnc2C(=O)N1)C(=O)N[C@@H](Cc3ccccc3)C(O)=O"                                                                                                             
IEK SMILES           CACTVS               3.385 "NC1=Nc2nc(cnc2C(=O)N1)C(=O)N[CH](Cc3ccccc3)C(O)=O"                                                                                                               
IEK SMILES_CANONICAL "OpenEye OEToolkits" 2.0.7 "c1ccc(cc1)C[C@@H](C(=O)O)NC(=O)c2cnc3c(n2)N=C(NC3=O)N"                                                                                                           
IEK SMILES           "OpenEye OEToolkits" 2.0.7 "c1ccc(cc1)CC(C(=O)O)NC(=O)c2cnc3c(n2)N=C(NC3=O)N"                                                                                                                
# 
_pdbx_chem_comp_identifier.comp_id           IEK 
_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~{S})-2-[(2-azanyl-4-oxidanylidene-3~{H}-pteridin-7-yl)carbonylamino]-3-phenyl-propanoic 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 
IEK "Create component" 2022-06-28 PDBJ 
IEK "Initial release"  2022-12-21 RCSB 
# 
_pdbx_chem_comp_synonyms.ordinal      1 
_pdbx_chem_comp_synonyms.comp_id      IEK 
_pdbx_chem_comp_synonyms.name         "(2-amino-4-oxo-3,4-dihydropteridine-7-carbonyl)-D-tyrosine" 
_pdbx_chem_comp_synonyms.provenance   AUTHOR 
_pdbx_chem_comp_synonyms.type         ? 
# 
