data_2K8
#

_chem_comp.id                                   2K8
_chem_comp.name                                 "(6R)-2-amino-4-oxo-3,4,5,6,7,8-hexahydropteridine-6-carboxylic acid"
_chem_comp.type                                 NON-POLYMER
_chem_comp.pdbx_type                            HETAIN
_chem_comp.formula                              "C7 H9 N5 O3"
_chem_comp.mon_nstd_parent_comp_id              ?
_chem_comp.pdbx_synonyms                        "6-carboxy-5,6,7,8-tetrahydropterin"
_chem_comp.pdbx_formal_charge                   0
_chem_comp.pdbx_initial_date                    2013-11-14
_chem_comp.pdbx_modified_date                   2021-03-13
_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                       211.178
_chem_comp.one_letter_code                      ?
_chem_comp.three_letter_code                    2K8
_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       4NJH
_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
2K8  O6A  O6A  O  0  1  N  N  N  -11.696  83.286  23.744  -3.845   0.228   0.919  O6A  2K8   1  
2K8  C6A  C6A  C  0  1  N  N  N  -10.835  84.025  23.212  -2.579  -0.127   0.651  C6A  2K8   2  
2K8  O6B  O6B  O  0  1  N  N  N  -10.858  85.271  23.190  -1.800  -0.315   1.555  O6B  2K8   3  
2K8  C6   C6   C  0  1  N  N  R   -9.646  83.337  22.528  -2.129  -0.291  -0.778  C6   2K8   4  
2K8  N5   N5   N  0  1  N  N  N   -9.290  82.230  23.401  -0.911  -1.117  -0.825  N5   2K8   5  
2K8  C4A  C4A  C  0  1  N  N  N   -7.947  81.950  23.609   0.315  -0.532  -0.438  C4A  2K8   6  
2K8  C7   C7   C  0  1  N  N  N   -8.495  84.327  22.194  -1.794   1.083  -1.377  C7   2K8   7  
2K8  N8   N8   N  0  1  N  N  N   -7.146  83.767  22.203  -0.664   1.652  -0.628  N8   2K8   8  
2K8  C8A  C8A  C  0  1  N  N  N   -6.900  82.702  23.062   0.429   0.848  -0.345  C8A  2K8   9  
2K8  N1   N1   N  0  1  N  N  N   -5.592  82.457  23.309   1.596   1.391   0.019  N1   2K8  10  
2K8  C2   C2   C  0  1  N  N  N   -5.365  81.432  24.127   2.639   0.637   0.293  C2   2K8  11  
2K8  N2   N2   N  0  1  N  N  N   -4.112  81.110  24.453   3.818   1.234   0.663  N2   2K8  12  
2K8  N3   N3   N  0  1  N  N  N   -6.362  80.668  24.668   2.577  -0.720   0.219  N3   2K8  13  
2K8  C4   C4   C  0  1  N  N  N   -7.709  80.861  24.446   1.427  -1.328  -0.145  C4   2K8  14  
2K8  O4   O4   O  0  1  N  N  N   -8.546  80.104  24.943   1.360  -2.546  -0.216  O4   2K8  15  
2K8  H1   H1   H  0  1  N  N  N  -12.377  83.822  24.133  -4.088   0.320   1.850  H1   2K8  16  
2K8  H2   H2   H  0  1  N  N  N  -10.008  82.925  21.574  -2.918  -0.765  -1.361  H2   2K8  17  
2K8  H3   H3   H  0  1  N  N  N   -9.693  82.420  24.296  -0.951  -2.042  -1.114  H3   2K8  18  
2K8  H4   H4   H  0  1  N  N  N   -8.526  85.141  22.933  -1.519   0.970  -2.426  H4   2K8  19  
2K8  H5   H5   H  0  1  N  N  N   -8.683  84.736  21.190  -2.659   1.741  -1.293  H5   2K8  20  
2K8  H6   H6   H  0  1  N  N  N   -6.944  83.456  21.274  -0.683   2.577  -0.336  H6   2K8  21  
2K8  H7   H7   H  0  1  N  N  N   -3.348  81.638  24.083   3.875   2.201   0.720  H7   2K8  22  
2K8  H8   H8   H  0  1  N  N  N   -3.937  80.341  25.067   4.594   0.689   0.867  H8   2K8  23  
2K8  H9   H9   H  0  1  N  N  N   -6.095  79.914  25.268   3.361  -1.253   0.428  H9   2K8  24  
#   #
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
2K8  C7   N8   SING  N  N   1  
2K8  C7   C6   SING  N  N   2  
2K8  N8   C8A  SING  N  N   3  
2K8  C6   C6A  SING  N  N   4  
2K8  C6   N5   SING  N  N   5  
2K8  C8A  N1   SING  N  N   6  
2K8  C8A  C4A  DOUB  N  N   7  
2K8  O6B  C6A  DOUB  N  N   8  
2K8  C6A  O6A  SING  N  N   9  
2K8  N1   C2   DOUB  N  N  10  
2K8  N5   C4A  SING  N  N  11  
2K8  C4A  C4   SING  N  N  12  
2K8  C2   N2   SING  N  N  13  
2K8  C2   N3   SING  N  N  14  
2K8  C4   N3   SING  N  N  15  
2K8  C4   O4   DOUB  N  N  16  
2K8  O6A  H1   SING  N  N  17  
2K8  C6   H2   SING  N  N  18  
2K8  N5   H3   SING  N  N  19  
2K8  C7   H4   SING  N  N  20  
2K8  C7   H5   SING  N  N  21  
2K8  N8   H6   SING  N  N  22  
2K8  N2   H7   SING  N  N  23  
2K8  N2   H8   SING  N  N  24  
2K8  N3   H9   SING  N  N  25  
#   #
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
2K8  SMILES            ACDLabs               12.01  "O=C(O)C2NC1=C(N=C(N)NC1=O)NC2"  
2K8  InChI             InChI                 1.03   "InChI=1S/C7H9N5O3/c8-7-11-4-3(5(13)12-7)10-2(1-9-4)6(14)15/h2,10H,1H2,(H,14,15)(H4,8,9,11,12,13)/t2-/m1/s1"  
2K8  InChIKey          InChI                 1.03   QSIYONWVWDSRRO-UWTATZPHSA-N  
2K8  SMILES_CANONICAL  CACTVS                3.385  "NC1=NC2=C(N[C@H](CN2)C(O)=O)C(=O)N1"  
2K8  SMILES            CACTVS                3.385  "NC1=NC2=C(N[CH](CN2)C(O)=O)C(=O)N1"  
2K8  SMILES_CANONICAL  "OpenEye OEToolkits"  1.7.6  "C1[C@@H](NC2=C(N1)N=C(NC2=O)N)C(=O)O"  
2K8  SMILES            "OpenEye OEToolkits"  1.7.6  "C1C(NC2=C(N1)N=C(NC2=O)N)C(=O)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
2K8  "SYSTEMATIC NAME"  ACDLabs               12.01  "(6R)-2-amino-4-oxo-3,4,5,6,7,8-hexahydropteridine-6-carboxylic acid"  
2K8  "SYSTEMATIC NAME"  "OpenEye OEToolkits"  1.7.6  "(6R)-2-azanyl-4-oxidanylidene-5,6,7,8-tetrahydro-3H-pteridine-6-carboxylic 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
2K8  "Create component"  2013-11-14  RCSB  
2K8  "Modify atom id"    2013-12-13  RCSB  
2K8  "Initial release"   2013-12-25  RCSB  
2K8  "Modify synonyms"   2014-06-19  RCSB  
2K8  "Modify synonyms"   2021-03-13  RCSB  
#
_pdbx_chem_comp_synonyms.ordinal     1
_pdbx_chem_comp_synonyms.comp_id     2K8
_pdbx_chem_comp_synonyms.name        "6-carboxy-5,6,7,8-tetrahydropterin"
_pdbx_chem_comp_synonyms.provenance  PDB
_pdbx_chem_comp_synonyms.type        ?
##
