data_KYN
#

_chem_comp.id                                   KYN
_chem_comp.name                                 "(2S)-2-amino-4-(2-aminophenyl)-4-oxobutanoic acid"
_chem_comp.type                                 "L-PEPTIDE LINKING"
_chem_comp.pdbx_type                            ATOMP
_chem_comp.formula                              "C10 H12 N2 O3"
_chem_comp.mon_nstd_parent_comp_id              TRP
_chem_comp.pdbx_synonyms                        L-KYNURENINE
_chem_comp.pdbx_formal_charge                   0
_chem_comp.pdbx_initial_date                    2004-05-16
_chem_comp.pdbx_modified_date                   2021-03-01
_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                       208.214
_chem_comp.one_letter_code                      W
_chem_comp.three_letter_code                    KYN
_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       3E2Z
_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.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
KYN  C     C     C  0  1  N  N  N  20.975  -29.229   9.055  -3.512   0.418   0.172  C     KYN   1  
KYN  N     N     N  0  1  N  N  N  19.903  -29.713   7.059  -2.383  -1.334  -1.077  N     KYN   2  
KYN  OXT   O     O  0  1  N  Y  N  21.127  -29.714  10.187  -3.862   0.994   1.333  OXT   KYN   3  
KYN  C1    C1    C  0  1  N  N  N  22.556  -31.195   6.247   0.184  -0.481   0.069  C1    KYN   4  
KYN  N1    N1    N  0  1  N  N  N  24.793  -29.565   6.700   2.536  -2.043   0.412  N1    KYN   5  
KYN  O2    O2    O  0  1  N  N  N  21.653  -31.982   6.035   0.062  -1.683   0.176  O2    KYN   6  
KYN  CA    CA    C  0  1  N  N  S  21.000  -30.140   7.888  -2.295  -0.468   0.106  CA    KYN   7  
KYN  CB    CB    C  0  1  N  N  N  22.317  -29.989   7.132  -1.038   0.399   0.011  CB    KYN   8  
KYN  CG    CG    C  0  1  Y  N  N  24.958  -30.623   5.876   2.666  -0.684   0.170  CG    KYN   9  
KYN  CZ    CZ    C  0  1  Y  N  N  25.280  -32.796   4.187   2.928   2.041  -0.315  CZ    KYN  10  
KYN  CD1   CD1   C  0  1  Y  N  N  26.195  -30.870   5.294   3.926  -0.105   0.093  CD1   KYN  11  
KYN  CD2   CD2   C  0  1  Y  N  N  23.888  -31.455   5.619   1.522   0.117  -0.004  CD2   KYN  12  
KYN  CE1   CE1   C  0  1  Y  N  N  26.358  -31.959   4.445   4.053   1.247  -0.148  CE1   KYN  13  
KYN  CE2   CE2   C  0  1  Y  N  N  24.048  -32.541   4.777   1.670   1.488  -0.248  CE2   KYN  14  
KYN  O     OXT   O  0  1  N  N  N  20.756  -28.035   8.949  -4.176   0.607  -0.820  O     KYN  15  
KYN  H     HN    H  0  1  N  N  N  19.857  -30.289   6.243  -3.170  -1.962  -1.008  H     KYN  16  
KYN  H2    HNA   H  0  1  N  Y  N  19.048  -29.792   7.571  -2.431  -0.787  -1.923  H2    KYN  17  
KYN  HXT   HO    H  0  1  N  Y  N  21.043  -29.029  10.840  -4.650   1.554   1.326  HXT   KYN  18  
KYN  HN1   HN1   H  0  1  N  N  N  23.848  -29.540   7.026   3.321  -2.579   0.605  HN1   KYN  19  
KYN  HN1A  HN1A  H  0  0  N  N  N  25.412  -29.651   7.481   1.659  -2.459   0.387  HN1A  KYN  20  
KYN  HA    HA    H  0  1  N  N  N  20.871  -31.184   8.210  -2.245  -1.083   1.004  HA    KYN  21  
KYN  HB    HB    H  0  1  N  N  N  23.142  -29.900   7.854  -1.018   1.103   0.842  HB    KYN  22  
KYN  HBA   HBA   H  0  1  N  N  N  22.276  -29.084   6.508  -1.046   0.948  -0.931  HBA   KYN  23  
KYN  HZ    HZ    H  0  1  N  N  N  25.399  -33.644   3.529   3.041   3.099  -0.503  HZ    KYN  24  
KYN  HD1   HD1   H  0  1  N  N  N  27.030  -30.217   5.501   4.808  -0.715   0.222  HD1   KYN  25  
KYN  HE1   HE1   H  0  1  N  N  N  27.317  -32.153   3.989   5.036   1.692  -0.203  HE1   KYN  26  
KYN  HE2   HE2   H  0  1  N  N  N  23.211  -33.194   4.577   0.797   2.111  -0.378  HE2   KYN  27  
#   #
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
KYN  CA   C     SING  N  N   1  
KYN  O    C     DOUB  N  N   2  
KYN  C    OXT   SING  N  N   3  
KYN  N    CA    SING  N  N   4  
KYN  N    H     SING  N  N   5  
KYN  N    H2    SING  N  N   6  
KYN  OXT  HXT   SING  N  N   7  
KYN  CD2  C1    SING  N  N   8  
KYN  O2   C1    DOUB  N  N   9  
KYN  C1   CB    SING  N  N  10  
KYN  CG   N1    SING  N  N  11  
KYN  N1   HN1   SING  N  N  12  
KYN  N1   HN1A  SING  N  N  13  
KYN  CB   CA    SING  N  N  14  
KYN  CA   HA    SING  N  N  15  
KYN  CB   HB    SING  N  N  16  
KYN  CB   HBA   SING  N  N  17  
KYN  CD1  CG    DOUB  Y  N  18  
KYN  CD2  CG    SING  Y  N  19  
KYN  CZ   CE1   DOUB  Y  N  20  
KYN  CZ   CE2   SING  Y  N  21  
KYN  CZ   HZ    SING  N  N  22  
KYN  CE1  CD1   SING  Y  N  23  
KYN  CD1  HD1   SING  N  N  24  
KYN  CE2  CD2   DOUB  Y  N  25  
KYN  CE1  HE1   SING  N  N  26  
KYN  CE2  HE2   SING  N  N  27  
#   #
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
KYN  SMILES            ACDLabs               12.01  "O=C(c1ccccc1N)CC(C(=O)O)N"  
KYN  InChI             InChI                 1.03   "InChI=1S/C10H12N2O3/c11-7-4-2-1-3-6(7)9(13)5-8(12)10(14)15/h1-4,8H,5,11-12H2,(H,14,15)/t8-/m0/s1"  
KYN  InChIKey          InChI                 1.03   YGPSJZOEDVAXAB-QMMMGPOBSA-N  
KYN  SMILES_CANONICAL  CACTVS                3.370  "N[C@@H](CC(=O)c1ccccc1N)C(O)=O"  
KYN  SMILES            CACTVS                3.370  "N[CH](CC(=O)c1ccccc1N)C(O)=O"  
KYN  SMILES_CANONICAL  "OpenEye OEToolkits"  1.7.6  "c1ccc(c(c1)C(=O)C[C@@H](C(=O)O)N)N"  
KYN  SMILES            "OpenEye OEToolkits"  1.7.6  "c1ccc(c(c1)C(=O)CC(C(=O)O)N)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
KYN  "SYSTEMATIC NAME"  ACDLabs               12.01  "(2S)-2-amino-4-(2-aminophenyl)-4-oxobutanoic acid"  
KYN  "SYSTEMATIC NAME"  "OpenEye OEToolkits"  1.7.6  "(2S)-4-(2-aminophenyl)-2-azanyl-4-oxidanylidene-butanoic 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
KYN  "Create component"       2004-05-16  RCSB  
KYN  "Other modification"     2010-10-29  RCSB  
KYN  "Modify aromatic_flag"   2011-06-04  RCSB  
KYN  "Modify descriptor"      2011-06-04  RCSB  
KYN  "Modify parent residue"  2013-05-01  RCSB  
KYN  "Modify synonyms"        2021-03-01  PDBE  
#
_pdbx_chem_comp_synonyms.ordinal     1
_pdbx_chem_comp_synonyms.comp_id     KYN
_pdbx_chem_comp_synonyms.name        L-KYNURENINE
_pdbx_chem_comp_synonyms.provenance  ?
_pdbx_chem_comp_synonyms.type        ?
##
