data_NEN
# 
_chem_comp.id                                    NEN 
_chem_comp.name                                  1-ETHYL-PYRROLIDINE-2,5-DIONE 
_chem_comp.type                                  NON-POLYMER 
_chem_comp.pdbx_type                             HETAIN 
_chem_comp.formula                               "C6 H9 N O2" 
_chem_comp.mon_nstd_parent_comp_id               ? 
_chem_comp.pdbx_synonyms                         ? 
_chem_comp.pdbx_formal_charge                    0 
_chem_comp.pdbx_initial_date                     1999-08-17 
_chem_comp.pdbx_modified_date                    2024-09-27 
_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                        127.141 
_chem_comp.one_letter_code                       ? 
_chem_comp.three_letter_code                     NEN 
_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        1CR5 
_chem_comp.pdbx_subcomponent_list                ? 
_chem_comp.pdbx_processing_site                  RCSB 
_chem_comp.pdbx_pcm                              Y 
# 
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.pdbx_backbone_atom_flag 
_chem_comp_atom.pdbx_n_terminal_atom_flag 
_chem_comp_atom.pdbx_c_terminal_atom_flag 
_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 
NEN O1  O1  O 0 1 N N N N N N 14.581 15.756 42.631 -2.250 0.175  -0.005 O1  NEN 1  
NEN N1  N1  N 0 1 N N N N N N 15.712 17.646 43.391 0.000  0.231  0.256  N1  NEN 2  
NEN C1  C1  C 0 1 N N N N N N 15.662 17.293 41.080 -0.775 -0.253 -1.882 C1  NEN 3  
NEN O2  O2  O 0 1 N N N N N N 16.857 19.666 43.491 2.251  0.174  -0.016 O2  NEN 4  
NEN C2  C2  C 0 1 N N N N N N 15.231 16.777 42.408 -1.126 0.073  -0.447 C2  NEN 5  
NEN C3  C3  C 0 1 N N N N N N 16.309 18.785 42.852 1.125  0.074  -0.453 C3  NEN 6  
NEN C4  C4  C 0 1 N N N N N N 16.173 18.718 41.315 0.766  -0.256 -1.885 C4  NEN 7  
NEN C5  C5  C 0 1 N N N N N N 15.634 17.400 44.833 0.004  0.556  1.685  C5  NEN 8  
NEN C6  C6  C 0 1 N N N N N N 16.877 16.674 45.349 0.003  -0.737 2.502  C6  NEN 9  
NEN H11 1H1 H 0 1 N N N N N N 16.404 16.635 40.569 -1.161 -1.235 -2.158 H11 NEN 10 
NEN H12 2H1 H 0 1 N N N N N N 14.865 17.231 40.302 -1.159 0.513  -2.555 H12 NEN 11 
NEN H41 1H4 H 0 1 N N N N N N 17.099 18.979 40.752 1.148  -1.239 -2.162 H41 NEN 12 
NEN H42 2H4 H 0 1 N N N N N N 15.540 19.519 40.867 1.150  0.509  -2.560 H42 NEN 13 
NEN H51 1H5 H 0 1 N N N N N N 15.450 18.343 45.397 -0.884 1.139  1.927  H51 NEN 14 
NEN H52 2H5 H 0 1 N N N N N N 14.701 16.851 45.102 0.895  1.136  1.923  H52 NEN 15 
NEN H61 1H6 H 0 1 N N N N N N 16.817 16.486 46.446 0.006  -0.495 3.565  H61 NEN 16 
NEN H62 2H6 H 0 1 N N N N N N 17.060 15.730 44.784 -0.887 -1.317 2.263  H62 NEN 17 
NEN H63 3H6 H 0 1 N N N N N N 17.809 17.222 45.079 0.892  -1.320 2.260  H63 NEN 18 
# 
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 
NEN O1 C2  DOUB N N 1  
NEN N1 C2  SING N N 2  
NEN N1 C3  SING N N 3  
NEN N1 C5  SING N N 4  
NEN C1 C2  SING N N 5  
NEN C1 C4  SING N N 6  
NEN C1 H11 SING N N 7  
NEN C1 H12 SING N N 8  
NEN O2 C3  DOUB N N 9  
NEN C3 C4  SING N N 10 
NEN C4 H41 SING N N 11 
NEN C4 H42 SING N N 12 
NEN C5 C6  SING N N 13 
NEN C5 H51 SING N N 14 
NEN C5 H52 SING N N 15 
NEN C6 H61 SING N N 16 
NEN C6 H62 SING N N 17 
NEN C6 H63 SING N N 18 
# 
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 
NEN SMILES           ACDLabs              10.04 "O=C1N(C(=O)CC1)CC"                                
NEN SMILES_CANONICAL CACTVS               3.341 "CCN1C(=O)CCC1=O"                                  
NEN SMILES           CACTVS               3.341 "CCN1C(=O)CCC1=O"                                  
NEN SMILES_CANONICAL "OpenEye OEToolkits" 1.5.0 "CCN1C(=O)CCC1=O"                                  
NEN SMILES           "OpenEye OEToolkits" 1.5.0 "CCN1C(=O)CCC1=O"                                  
NEN InChI            InChI                1.03  "InChI=1S/C6H9NO2/c1-2-7-5(8)3-4-6(7)9/h2-4H2,1H3" 
NEN InChIKey         InChI                1.03  GHAZCVNUKKZTLG-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 
NEN "SYSTEMATIC NAME" ACDLabs              10.04 1-ethylpyrrolidine-2,5-dione 
NEN "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.5.0 1-ethylpyrrolidine-2,5-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 
NEN "Create component"  1999-08-17 RCSB 
NEN "Modify descriptor" 2011-06-04 RCSB 
NEN "Modify PCM"        2024-09-27 PDBE 
# 
loop_
_pdbx_chem_comp_pcm.pcm_id 
_pdbx_chem_comp_pcm.comp_id 
_pdbx_chem_comp_pcm.modified_residue_id 
_pdbx_chem_comp_pcm.type 
_pdbx_chem_comp_pcm.category 
_pdbx_chem_comp_pcm.position 
_pdbx_chem_comp_pcm.polypeptide_position 
_pdbx_chem_comp_pcm.comp_id_linking_atom 
_pdbx_chem_comp_pcm.modified_residue_id_linking_atom 
_pdbx_chem_comp_pcm.uniprot_specific_ptm_accession 
_pdbx_chem_comp_pcm.uniprot_generic_ptm_accession 
1 NEN CYS None "Covalent chemical modification" "Amino-acid side chain" "Any position" C1 SG ? ? 
2 NEN CYS None "Covalent chemical modification" "Amino-acid side chain" "Any position" C4 SG ? ? 
# 
