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         <PDBx:name>1-methylimidazolidine-2,4-dione</PDBx:name>
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         <PDBx:pdbx_ideal_coordinates_details>Corina</PDBx:pdbx_ideal_coordinates_details>
         <PDBx:pdbx_ideal_coordinates_missing_flag>N</PDBx:pdbx_ideal_coordinates_missing_flag>
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         <PDBx:pdbx_model_coordinates_missing_flag>N</PDBx:pdbx_model_coordinates_missing_flag>
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         <PDBx:pdbx_processing_site>RCSB</PDBx:pdbx_processing_site>
         <PDBx:pdbx_release_status>REL</PDBx:pdbx_release_status>
         <PDBx:pdbx_type>HETAIN</PDBx:pdbx_type>
         <PDBx:three_letter_code>A1BC1</PDBx:three_letter_code>
         <PDBx:type>non-polymer</PDBx:type>
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         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_component_atom_id>C1</PDBx:pdbx_component_atom_id>
         <PDBx:pdbx_component_comp_id>A1BC1</PDBx:pdbx_component_comp_id>
         <PDBx:pdbx_leaving_atom_flag>N</PDBx:pdbx_leaving_atom_flag>
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         <PDBx:pdbx_model_Cartn_y_ideal>-1.256</PDBx:pdbx_model_Cartn_y_ideal>
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         <PDBx:pdbx_align>1</PDBx:pdbx_align>
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_component_atom_id>C3</PDBx:pdbx_component_atom_id>
         <PDBx:pdbx_component_comp_id>A1BC1</PDBx:pdbx_component_comp_id>
         <PDBx:pdbx_leaving_atom_flag>N</PDBx:pdbx_leaving_atom_flag>
         <PDBx:pdbx_model_Cartn_x_ideal>-2.171</PDBx:pdbx_model_Cartn_x_ideal>
         <PDBx:pdbx_model_Cartn_y_ideal>-1.242</PDBx:pdbx_model_Cartn_y_ideal>
         <PDBx:pdbx_model_Cartn_z_ideal>0.000</PDBx:pdbx_model_Cartn_z_ideal>
         <PDBx:pdbx_ordinal>2</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:type_symbol>C</PDBx:type_symbol>
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      <PDBx:chem_comp_atom atom_id="C4" comp_id="A1BC1">
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         <PDBx:charge>0</PDBx:charge>
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         <PDBx:model_Cartn_y>18.734</PDBx:model_Cartn_y>
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         <PDBx:pdbx_align>1</PDBx:pdbx_align>
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_component_atom_id>C4</PDBx:pdbx_component_atom_id>
         <PDBx:pdbx_component_comp_id>A1BC1</PDBx:pdbx_component_comp_id>
         <PDBx:pdbx_leaving_atom_flag>N</PDBx:pdbx_leaving_atom_flag>
         <PDBx:pdbx_model_Cartn_x_ideal>1.439</PDBx:pdbx_model_Cartn_x_ideal>
         <PDBx:pdbx_model_Cartn_y_ideal>-0.102</PDBx:pdbx_model_Cartn_y_ideal>
         <PDBx:pdbx_model_Cartn_z_ideal>-0.000</PDBx:pdbx_model_Cartn_z_ideal>
         <PDBx:pdbx_ordinal>3</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:type_symbol>C</PDBx:type_symbol>
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      <PDBx:chem_comp_atom atom_id="C5" comp_id="A1BC1">
         <PDBx:alt_atom_id>C4</PDBx:alt_atom_id>
         <PDBx:charge>0</PDBx:charge>
         <PDBx:model_Cartn_x>34.333</PDBx:model_Cartn_x>
         <PDBx:model_Cartn_y>19.994</PDBx:model_Cartn_y>
         <PDBx:model_Cartn_z>37.870</PDBx:model_Cartn_z>
         <PDBx:pdbx_align>1</PDBx:pdbx_align>
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_component_atom_id>C5</PDBx:pdbx_component_atom_id>
         <PDBx:pdbx_component_comp_id>A1BC1</PDBx:pdbx_component_comp_id>
         <PDBx:pdbx_leaving_atom_flag>N</PDBx:pdbx_leaving_atom_flag>
         <PDBx:pdbx_model_Cartn_x_ideal>-0.620</PDBx:pdbx_model_Cartn_x_ideal>
         <PDBx:pdbx_model_Cartn_y_ideal>0.734</PDBx:pdbx_model_Cartn_y_ideal>
         <PDBx:pdbx_model_Cartn_z_ideal>-0.000</PDBx:pdbx_model_Cartn_z_ideal>
         <PDBx:pdbx_ordinal>4</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:type_symbol>C</PDBx:type_symbol>
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      <PDBx:chem_comp_atom atom_id="N2" comp_id="A1BC1">
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         <PDBx:charge>0</PDBx:charge>
         <PDBx:model_Cartn_x>35.684</PDBx:model_Cartn_x>
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         <PDBx:model_Cartn_z>38.145</PDBx:model_Cartn_z>
         <PDBx:pdbx_align>1</PDBx:pdbx_align>
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_component_atom_id>N2</PDBx:pdbx_component_atom_id>
         <PDBx:pdbx_component_comp_id>A1BC1</PDBx:pdbx_component_comp_id>
         <PDBx:pdbx_leaving_atom_flag>N</PDBx:pdbx_leaving_atom_flag>
         <PDBx:pdbx_model_Cartn_x_ideal>-0.859</PDBx:pdbx_model_Cartn_x_ideal>
         <PDBx:pdbx_model_Cartn_y_ideal>-0.590</PDBx:pdbx_model_Cartn_y_ideal>
         <PDBx:pdbx_model_Cartn_z_ideal>-0.000</PDBx:pdbx_model_Cartn_z_ideal>
         <PDBx:pdbx_ordinal>5</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:type_symbol>N</PDBx:type_symbol>
      </PDBx:chem_comp_atom>
      <PDBx:chem_comp_atom atom_id="N7" comp_id="A1BC1">
         <PDBx:alt_atom_id>N2</PDBx:alt_atom_id>
         <PDBx:charge>0</PDBx:charge>
         <PDBx:model_Cartn_x>34.166</PDBx:model_Cartn_x>
         <PDBx:model_Cartn_y>19.169</PDBx:model_Cartn_y>
         <PDBx:model_Cartn_z>36.725</PDBx:model_Cartn_z>
         <PDBx:pdbx_align>1</PDBx:pdbx_align>
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_component_atom_id>N7</PDBx:pdbx_component_atom_id>
         <PDBx:pdbx_component_comp_id>A1BC1</PDBx:pdbx_component_comp_id>
         <PDBx:pdbx_leaving_atom_flag>N</PDBx:pdbx_leaving_atom_flag>
         <PDBx:pdbx_model_Cartn_x_ideal>0.688</PDBx:pdbx_model_Cartn_x_ideal>
         <PDBx:pdbx_model_Cartn_y_ideal>1.017</PDBx:pdbx_model_Cartn_y_ideal>
         <PDBx:pdbx_model_Cartn_z_ideal>-0.000</PDBx:pdbx_model_Cartn_z_ideal>
         <PDBx:pdbx_ordinal>6</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:type_symbol>N</PDBx:type_symbol>
      </PDBx:chem_comp_atom>
      <PDBx:chem_comp_atom atom_id="O6" comp_id="A1BC1">
         <PDBx:alt_atom_id>O1</PDBx:alt_atom_id>
         <PDBx:charge>0</PDBx:charge>
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         <PDBx:model_Cartn_y>20.532</PDBx:model_Cartn_y>
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         <PDBx:pdbx_align>1</PDBx:pdbx_align>
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_component_atom_id>O6</PDBx:pdbx_component_atom_id>
         <PDBx:pdbx_component_comp_id>A1BC1</PDBx:pdbx_component_comp_id>
         <PDBx:pdbx_leaving_atom_flag>N</PDBx:pdbx_leaving_atom_flag>
         <PDBx:pdbx_model_Cartn_x_ideal>-1.494</PDBx:pdbx_model_Cartn_x_ideal>
         <PDBx:pdbx_model_Cartn_y_ideal>1.579</PDBx:pdbx_model_Cartn_y_ideal>
         <PDBx:pdbx_model_Cartn_z_ideal>0.000</PDBx:pdbx_model_Cartn_z_ideal>
         <PDBx:pdbx_ordinal>7</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:type_symbol>O</PDBx:type_symbol>
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      <PDBx:chem_comp_atom atom_id="O8" comp_id="A1BC1">
         <PDBx:alt_atom_id>O2</PDBx:alt_atom_id>
         <PDBx:charge>0</PDBx:charge>
         <PDBx:model_Cartn_x>35.563</PDBx:model_Cartn_x>
         <PDBx:model_Cartn_y>17.996</PDBx:model_Cartn_y>
         <PDBx:model_Cartn_z>35.286</PDBx:model_Cartn_z>
         <PDBx:pdbx_align>1</PDBx:pdbx_align>
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_component_atom_id>O8</PDBx:pdbx_component_atom_id>
         <PDBx:pdbx_component_comp_id>A1BC1</PDBx:pdbx_component_comp_id>
         <PDBx:pdbx_leaving_atom_flag>N</PDBx:pdbx_leaving_atom_flag>
         <PDBx:pdbx_model_Cartn_x_ideal>2.649</PDBx:pdbx_model_Cartn_x_ideal>
         <PDBx:pdbx_model_Cartn_y_ideal>-0.172</PDBx:pdbx_model_Cartn_y_ideal>
         <PDBx:pdbx_model_Cartn_z_ideal>0.000</PDBx:pdbx_model_Cartn_z_ideal>
         <PDBx:pdbx_ordinal>8</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:type_symbol>O</PDBx:type_symbol>
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      <PDBx:chem_comp_atom atom_id="H12" comp_id="A1BC1">
         <PDBx:alt_atom_id>H1</PDBx:alt_atom_id>
         <PDBx:charge>0</PDBx:charge>
         <PDBx:model_Cartn_x>37.172</PDBx:model_Cartn_x>
         <PDBx:model_Cartn_y>19.951</PDBx:model_Cartn_y>
         <PDBx:model_Cartn_z>36.619</PDBx:model_Cartn_z>
         <PDBx:pdbx_align>1</PDBx:pdbx_align>
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_component_atom_id>H12</PDBx:pdbx_component_atom_id>
         <PDBx:pdbx_component_comp_id>A1BC1</PDBx:pdbx_component_comp_id>
         <PDBx:pdbx_leaving_atom_flag>N</PDBx:pdbx_leaving_atom_flag>
         <PDBx:pdbx_model_Cartn_x_ideal>0.577</PDBx:pdbx_model_Cartn_x_ideal>
         <PDBx:pdbx_model_Cartn_y_ideal>-1.864</PDBx:pdbx_model_Cartn_y_ideal>
         <PDBx:pdbx_model_Cartn_z_ideal>-0.897</PDBx:pdbx_model_Cartn_z_ideal>
         <PDBx:pdbx_ordinal>9</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:type_symbol>H</PDBx:type_symbol>
      </PDBx:chem_comp_atom>
      <PDBx:chem_comp_atom atom_id="H11" comp_id="A1BC1">
         <PDBx:alt_atom_id>H2</PDBx:alt_atom_id>
         <PDBx:charge>0</PDBx:charge>
         <PDBx:model_Cartn_x>37.048</PDBx:model_Cartn_x>
         <PDBx:model_Cartn_y>18.505</PDBx:model_Cartn_y>
         <PDBx:model_Cartn_z>37.676</PDBx:model_Cartn_z>
         <PDBx:pdbx_align>1</PDBx:pdbx_align>
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_component_atom_id>H11</PDBx:pdbx_component_atom_id>
         <PDBx:pdbx_component_comp_id>A1BC1</PDBx:pdbx_component_comp_id>
         <PDBx:pdbx_leaving_atom_flag>N</PDBx:pdbx_leaving_atom_flag>
         <PDBx:pdbx_model_Cartn_x_ideal>0.577</PDBx:pdbx_model_Cartn_x_ideal>
         <PDBx:pdbx_model_Cartn_y_ideal>-1.864</PDBx:pdbx_model_Cartn_y_ideal>
         <PDBx:pdbx_model_Cartn_z_ideal>0.896</PDBx:pdbx_model_Cartn_z_ideal>
         <PDBx:pdbx_ordinal>10</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:type_symbol>H</PDBx:type_symbol>
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      <PDBx:chem_comp_atom atom_id="H33" comp_id="A1BC1">
         <PDBx:alt_atom_id>H3</PDBx:alt_atom_id>
         <PDBx:charge>0</PDBx:charge>
         <PDBx:model_Cartn_x>35.445</PDBx:model_Cartn_x>
         <PDBx:model_Cartn_y>21.332</PDBx:model_Cartn_y>
         <PDBx:model_Cartn_z>39.824</PDBx:model_Cartn_z>
         <PDBx:pdbx_align>1</PDBx:pdbx_align>
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_component_atom_id>H33</PDBx:pdbx_component_atom_id>
         <PDBx:pdbx_component_comp_id>A1BC1</PDBx:pdbx_component_comp_id>
         <PDBx:pdbx_leaving_atom_flag>N</PDBx:pdbx_leaving_atom_flag>
         <PDBx:pdbx_model_Cartn_x_ideal>-2.496</PDBx:pdbx_model_Cartn_x_ideal>
         <PDBx:pdbx_model_Cartn_y_ideal>-1.403</PDBx:pdbx_model_Cartn_y_ideal>
         <PDBx:pdbx_model_Cartn_z_ideal>1.028</PDBx:pdbx_model_Cartn_z_ideal>
         <PDBx:pdbx_ordinal>11</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:type_symbol>H</PDBx:type_symbol>
      </PDBx:chem_comp_atom>
      <PDBx:chem_comp_atom atom_id="H32" comp_id="A1BC1">
         <PDBx:alt_atom_id>H4</PDBx:alt_atom_id>
         <PDBx:charge>0</PDBx:charge>
         <PDBx:model_Cartn_x>36.814</PDBx:model_Cartn_x>
         <PDBx:model_Cartn_y>20.173</PDBx:model_Cartn_y>
         <PDBx:model_Cartn_z>39.922</PDBx:model_Cartn_z>
         <PDBx:pdbx_align>1</PDBx:pdbx_align>
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_component_atom_id>H32</PDBx:pdbx_component_atom_id>
         <PDBx:pdbx_component_comp_id>A1BC1</PDBx:pdbx_component_comp_id>
         <PDBx:pdbx_leaving_atom_flag>N</PDBx:pdbx_leaving_atom_flag>
         <PDBx:pdbx_model_Cartn_x_ideal>-2.892</PDBx:pdbx_model_Cartn_x_ideal>
         <PDBx:pdbx_model_Cartn_y_ideal>-0.607</PDBx:pdbx_model_Cartn_y_ideal>
         <PDBx:pdbx_model_Cartn_z_ideal>-0.514</PDBx:pdbx_model_Cartn_z_ideal>
         <PDBx:pdbx_ordinal>12</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:type_symbol>H</PDBx:type_symbol>
      </PDBx:chem_comp_atom>
      <PDBx:chem_comp_atom atom_id="H31" comp_id="A1BC1">
         <PDBx:alt_atom_id>H5</PDBx:alt_atom_id>
         <PDBx:charge>0</PDBx:charge>
         <PDBx:model_Cartn_x>36.934</PDBx:model_Cartn_x>
         <PDBx:model_Cartn_y>21.618</PDBx:model_Cartn_y>
         <PDBx:model_Cartn_z>38.862</PDBx:model_Cartn_z>
         <PDBx:pdbx_align>1</PDBx:pdbx_align>
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_component_atom_id>H31</PDBx:pdbx_component_atom_id>
         <PDBx:pdbx_component_comp_id>A1BC1</PDBx:pdbx_component_comp_id>
         <PDBx:pdbx_leaving_atom_flag>N</PDBx:pdbx_leaving_atom_flag>
         <PDBx:pdbx_model_Cartn_x_ideal>-2.100</PDBx:pdbx_model_Cartn_x_ideal>
         <PDBx:pdbx_model_Cartn_y_ideal>-2.201</PDBx:pdbx_model_Cartn_y_ideal>
         <PDBx:pdbx_model_Cartn_z_ideal>-0.513</PDBx:pdbx_model_Cartn_z_ideal>
         <PDBx:pdbx_ordinal>13</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:type_symbol>H</PDBx:type_symbol>
      </PDBx:chem_comp_atom>
      <PDBx:chem_comp_atom atom_id="H7" comp_id="A1BC1">
         <PDBx:alt_atom_id>H6</PDBx:alt_atom_id>
         <PDBx:charge>0</PDBx:charge>
         <PDBx:model_Cartn_x>33.289</PDBx:model_Cartn_x>
         <PDBx:model_Cartn_y>18.934</PDBx:model_Cartn_y>
         <PDBx:model_Cartn_z>36.306</PDBx:model_Cartn_z>
         <PDBx:pdbx_align>1</PDBx:pdbx_align>
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_component_atom_id>H7</PDBx:pdbx_component_atom_id>
         <PDBx:pdbx_component_comp_id>A1BC1</PDBx:pdbx_component_comp_id>
         <PDBx:pdbx_leaving_atom_flag>N</PDBx:pdbx_leaving_atom_flag>
         <PDBx:pdbx_model_Cartn_x_ideal>1.051</PDBx:pdbx_model_Cartn_x_ideal>
         <PDBx:pdbx_model_Cartn_y_ideal>1.916</PDBx:pdbx_model_Cartn_y_ideal>
         <PDBx:pdbx_model_Cartn_z_ideal>0.000</PDBx:pdbx_model_Cartn_z_ideal>
         <PDBx:pdbx_ordinal>14</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:type_symbol>H</PDBx:type_symbol>
      </PDBx:chem_comp_atom>
   </PDBx:chem_comp_atomCategory>
   <PDBx:chem_comp_bondCategory>
      <PDBx:chem_comp_bond atom_id_1="C1" atom_id_2="N2" comp_id="A1BC1">
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_ordinal>1</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:value_order>sing</PDBx:value_order>
      </PDBx:chem_comp_bond>
      <PDBx:chem_comp_bond atom_id_1="N2" atom_id_2="C3" comp_id="A1BC1">
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_ordinal>2</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:value_order>sing</PDBx:value_order>
      </PDBx:chem_comp_bond>
      <PDBx:chem_comp_bond atom_id_1="C1" atom_id_2="C4" comp_id="A1BC1">
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_ordinal>3</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:value_order>sing</PDBx:value_order>
      </PDBx:chem_comp_bond>
      <PDBx:chem_comp_bond atom_id_1="N2" atom_id_2="C5" comp_id="A1BC1">
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_ordinal>4</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:value_order>sing</PDBx:value_order>
      </PDBx:chem_comp_bond>
      <PDBx:chem_comp_bond atom_id_1="C5" atom_id_2="O6" comp_id="A1BC1">
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_ordinal>5</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:value_order>doub</PDBx:value_order>
      </PDBx:chem_comp_bond>
      <PDBx:chem_comp_bond atom_id_1="C5" atom_id_2="N7" comp_id="A1BC1">
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_ordinal>6</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:value_order>sing</PDBx:value_order>
      </PDBx:chem_comp_bond>
      <PDBx:chem_comp_bond atom_id_1="N7" atom_id_2="C4" comp_id="A1BC1">
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_ordinal>7</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:value_order>sing</PDBx:value_order>
      </PDBx:chem_comp_bond>
      <PDBx:chem_comp_bond atom_id_1="C4" atom_id_2="O8" comp_id="A1BC1">
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_ordinal>8</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:value_order>doub</PDBx:value_order>
      </PDBx:chem_comp_bond>
      <PDBx:chem_comp_bond atom_id_1="C1" atom_id_2="H12" comp_id="A1BC1">
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_ordinal>9</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:value_order>sing</PDBx:value_order>
      </PDBx:chem_comp_bond>
      <PDBx:chem_comp_bond atom_id_1="C1" atom_id_2="H11" comp_id="A1BC1">
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_ordinal>10</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:value_order>sing</PDBx:value_order>
      </PDBx:chem_comp_bond>
      <PDBx:chem_comp_bond atom_id_1="C3" atom_id_2="H33" comp_id="A1BC1">
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_ordinal>11</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:value_order>sing</PDBx:value_order>
      </PDBx:chem_comp_bond>
      <PDBx:chem_comp_bond atom_id_1="C3" atom_id_2="H32" comp_id="A1BC1">
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_ordinal>12</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:value_order>sing</PDBx:value_order>
      </PDBx:chem_comp_bond>
      <PDBx:chem_comp_bond atom_id_1="C3" atom_id_2="H31" comp_id="A1BC1">
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_ordinal>13</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:value_order>sing</PDBx:value_order>
      </PDBx:chem_comp_bond>
      <PDBx:chem_comp_bond atom_id_1="N7" atom_id_2="H7" comp_id="A1BC1">
         <PDBx:pdbx_aromatic_flag>N</PDBx:pdbx_aromatic_flag>
         <PDBx:pdbx_ordinal>14</PDBx:pdbx_ordinal>
         <PDBx:pdbx_stereo_config>N</PDBx:pdbx_stereo_config>
         <PDBx:value_order>sing</PDBx:value_order>
      </PDBx:chem_comp_bond>
   </PDBx:chem_comp_bondCategory>
   <PDBx:pdbx_chem_comp_auditCategory>
      <PDBx:pdbx_chem_comp_audit action_type="Create component" comp_id="A1BC1" date="2024-10-10">
         <PDBx:processing_site>RCSB</PDBx:processing_site>
      </PDBx:pdbx_chem_comp_audit>
      <PDBx:pdbx_chem_comp_audit action_type="Initial release" comp_id="A1BC1" date="2026-04-15">
         <PDBx:processing_site>RCSB</PDBx:processing_site>
      </PDBx:pdbx_chem_comp_audit>
   </PDBx:pdbx_chem_comp_auditCategory>
   <PDBx:pdbx_chem_comp_descriptorCategory>
      <PDBx:pdbx_chem_comp_descriptor comp_id="A1BC1" program="ACDLabs" program_version="14.52" type="SMILES">
         <PDBx:descriptor>O=C1NC(=O)CN1C</PDBx:descriptor>
      </PDBx:pdbx_chem_comp_descriptor>
      <PDBx:pdbx_chem_comp_descriptor comp_id="A1BC1" program="InChI" program_version="1.06" type="InChI">
         <PDBx:descriptor>InChI=1S/C4H6N2O2/c1-6-2-3(7)5-4(6)8/h2H2,1H3,(H,5,7,8)</PDBx:descriptor>
      </PDBx:pdbx_chem_comp_descriptor>
      <PDBx:pdbx_chem_comp_descriptor comp_id="A1BC1" program="InChI" program_version="1.06" type="InChIKey">
         <PDBx:descriptor>RHYBFKMFHLPQPH-UHFFFAOYSA-N</PDBx:descriptor>
      </PDBx:pdbx_chem_comp_descriptor>
      <PDBx:pdbx_chem_comp_descriptor comp_id="A1BC1" program="CACTVS" program_version="3.385" type="SMILES_CANONICAL">
         <PDBx:descriptor>CN1CC(=O)NC1=O</PDBx:descriptor>
      </PDBx:pdbx_chem_comp_descriptor>
      <PDBx:pdbx_chem_comp_descriptor comp_id="A1BC1" program="CACTVS" program_version="3.385" type="SMILES">
         <PDBx:descriptor>CN1CC(=O)NC1=O</PDBx:descriptor>
      </PDBx:pdbx_chem_comp_descriptor>
      <PDBx:pdbx_chem_comp_descriptor comp_id="A1BC1" program="OpenEye OEToolkits" program_version="3.1.0.0" type="SMILES_CANONICAL">
         <PDBx:descriptor>CN1CC(=O)NC1=O</PDBx:descriptor>
      </PDBx:pdbx_chem_comp_descriptor>
      <PDBx:pdbx_chem_comp_descriptor comp_id="A1BC1" program="OpenEye OEToolkits" program_version="3.1.0.0" type="SMILES">
         <PDBx:descriptor>CN1CC(=O)NC1=O</PDBx:descriptor>
      </PDBx:pdbx_chem_comp_descriptor>
   </PDBx:pdbx_chem_comp_descriptorCategory>
   <PDBx:pdbx_chem_comp_identifierCategory>
      <PDBx:pdbx_chem_comp_identifier comp_id="A1BC1" program="ACDLabs" program_version="14.52" type="SYSTEMATIC NAME">
         <PDBx:identifier>1-methylimidazolidine-2,4-dione</PDBx:identifier>
      </PDBx:pdbx_chem_comp_identifier>
      <PDBx:pdbx_chem_comp_identifier comp_id="A1BC1" program="OpenEye OEToolkits" program_version="3.1.0.0" type="SYSTEMATIC NAME">
         <PDBx:identifier>1-methylimidazolidine-2,4-dione</PDBx:identifier>
      </PDBx:pdbx_chem_comp_identifier>
   </PDBx:pdbx_chem_comp_identifierCategory>
</PDBx:datablock>
