data_SQ
#

_chem_comp.id                                   SQ
_chem_comp.name                                 "3-ETHYLAMINO-4-METHYLAMINO-CYCLOBUTANE-1,2-DIONE"
_chem_comp.type                                 NON-POLYMER
_chem_comp.pdbx_type                            HETAIN
_chem_comp.formula                              "C7 H12 N2 O2"
_chem_comp.mon_nstd_parent_comp_id              ?
_chem_comp.pdbx_synonyms                        "SQUARIC ACID"
_chem_comp.pdbx_formal_charge                   0
_chem_comp.pdbx_initial_date                    2002-08-13
_chem_comp.pdbx_modified_date                   2020-06-17
_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                       156.182
_chem_comp.one_letter_code                      ?
_chem_comp.three_letter_code                    SQ
_chem_comp.pdbx_model_coordinates_details       ?
_chem_comp.pdbx_model_coordinates_missing_flag  N
_chem_comp.pdbx_ideal_coordinates_details       ?
_chem_comp.pdbx_ideal_coordinates_missing_flag  N
_chem_comp.pdbx_model_coordinates_db_code       1MD2
_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
SQ  O1   O1   O  0  1  N  N  N  -16.075  12.984   -8.472   2.668   0.532   0.144  O1   SQ   1  
SQ  O2   O2   O  0  1  N  N  N  -15.580  14.630   -5.593   1.091  -1.262  -2.067  O2   SQ   2  
SQ  N1   N1   N  0  1  N  N  N  -17.841  15.397   -9.478  -0.391  -0.295   1.295  N1   SQ   3  
SQ  N2   N2   N  0  1  N  N  N  -17.348  17.025   -6.640  -1.661  -0.126  -1.170  N2   SQ   4  
SQ  C1   C1   C  0  1  N  N  R  -17.197  15.180   -8.375   0.154   0.701   0.366  C1   SQ   5  
SQ  C2   C2   C  0  1  N  N  N  -16.362  14.026   -7.917   1.521   0.340  -0.182  C2   SQ   6  
SQ  C3   C3   C  0  1  N  N  N  -16.150  14.783   -6.663   0.824  -0.362  -1.308  C3   SQ   7  
SQ  C4   C4   C  0  1  N  N  S  -16.975  15.848   -7.171  -0.362   0.552  -1.075  C4   SQ   8  
SQ  C5   C5   C  0  1  N  N  N  -17.687  17.474   -5.358  -2.336   0.417  -2.356  C5   SQ   9  
SQ  C6   C6   C  0  1  N  N  N  -17.873  14.452  -10.586  -0.397   0.325   2.626  C6   SQ  10  
SQ  C7   C7   C  0  1  N  N  N  -16.569  14.438  -11.364  -0.958  -0.664   3.649  C7   SQ  11  
SQ  H1   H1   H  0  1  N  N  N  -17.513  16.288   -9.849   0.273  -1.053   1.332  H1   SQ  12  
SQ  H3   H3   H  0  1  N  N  N  -18.153  17.294   -7.205  -1.468  -1.096  -1.365  H3   SQ  13  
SQ  H2   H2   H  0  1  N  N  N  -17.801  15.522   -9.247   0.092   1.719   0.750  H2   SQ  14  
SQ  H4   H4   H  0  1  N  N  N  -17.368  16.837   -6.838  -0.323   1.476  -1.653  H4   SQ  15  
SQ  H10  H10  H  0  1  N  N  N  -17.996  18.450   -4.917  -3.311  -0.058  -2.469  H10  SQ  16  
SQ  H11  H11  H  0  1  N  N  N  -18.504  16.781   -5.049  -2.468   1.492  -2.238  H11  SQ  17  
SQ  H12  H12  H  0  1  N  N  N  -16.806  17.179   -4.740  -1.731   0.220  -3.240  H12  SQ  18  
SQ  H5   H5   H  0  1  N  N  N  -18.145  13.428  -10.236  -1.020   1.220   2.607  H5   SQ  19  
SQ  H6   H6   H  0  1  N  N  N  -18.741  14.646  -11.257   0.620   0.598   2.904  H6   SQ  20  
SQ  H7   H7   H  0  1  N  N  N  -16.593  13.714  -12.212  -0.962  -0.203   4.636  H7   SQ  21  
SQ  H8   H8   H  0  1  N  N  N  -16.296  15.461  -11.713  -1.976  -0.936   3.371  H8   SQ  22  
SQ  H9   H9   H  0  1  N  N  N  -15.700  14.243  -10.692  -0.335  -1.558   3.668  H9   SQ  23  
#   #
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
SQ  O1  C2   DOUB  N  N   1  
SQ  O2  C3   DOUB  N  N   2  
SQ  N1  C1   SING  N  N   3  
SQ  N1  C6   SING  N  N   4  
SQ  N1  H1   SING  N  N   5  
SQ  N2  C4   SING  N  N   6  
SQ  N2  C5   SING  N  N   7  
SQ  N2  H3   SING  N  N   8  
SQ  C1  C2   SING  N  N   9  
SQ  C1  C4   SING  N  N  10  
SQ  C1  H2   SING  N  N  11  
SQ  C2  C3   SING  N  N  12  
SQ  C3  C4   SING  N  N  13  
SQ  C4  H4   SING  N  N  14  
SQ  C5  H10  SING  N  N  15  
SQ  C5  H11  SING  N  N  16  
SQ  C5  H12  SING  N  N  17  
SQ  C6  C7   SING  N  N  18  
SQ  C6  H5   SING  N  N  19  
SQ  C6  H6   SING  N  N  20  
SQ  C7  H7   SING  N  N  21  
SQ  C7  H8   SING  N  N  22  
SQ  C7  H9   SING  N  N  23  
#   #
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
SQ  SMILES            ACDLabs               10.04  "O=C1C(=O)C(NCC)C1NC"  
SQ  SMILES_CANONICAL  CACTVS                3.341  "CCN[C@@H]1[C@H](NC)C(=O)C1=O"  
SQ  SMILES            CACTVS                3.341  "CCN[CH]1[CH](NC)C(=O)C1=O"  
SQ  SMILES_CANONICAL  "OpenEye OEToolkits"  1.5.0  "CCNC1C(C(=O)C1=O)NC"  
SQ  SMILES            "OpenEye OEToolkits"  1.5.0  "CCNC1C(C(=O)C1=O)NC"  
SQ  InChI             InChI                 1.03   "InChI=1S/C7H12N2O2/c1-3-9-5-4(8-2)6(10)7(5)11/h4-5,8-9H,3H2,1-2H3"  
SQ  InChIKey          InChI                 1.03   FYAIPBIOBLLUAM-UHFFFAOYSA-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
SQ  "SYSTEMATIC NAME"  ACDLabs               10.04  "(3R,4S)-3-(ethylamino)-4-(methylamino)cyclobutane-1,2-dione"  
SQ  "SYSTEMATIC NAME"  "OpenEye OEToolkits"  1.5.0  "3-ethylamino-4-methylamino-cyclobutane-1,2-dione"  
#   #
loop_
_pdbx_chem_comp_audit.comp_id
_pdbx_chem_comp_audit.action_type
_pdbx_chem_comp_audit.date
_pdbx_chem_comp_audit.processing_site
SQ  "Create component"   2002-08-13  RCSB  
SQ  "Modify descriptor"  2011-06-04  RCSB  
SQ  "Modify synonyms"    2020-06-05  PDBE  
#
_pdbx_chem_comp_synonyms.ordinal     1
_pdbx_chem_comp_synonyms.comp_id     SQ
_pdbx_chem_comp_synonyms.name        "SQUARIC ACID"
_pdbx_chem_comp_synonyms.provenance  ?
_pdbx_chem_comp_synonyms.type        ?
##