data_PCA # _chem_comp.id PCA _chem_comp.name "PYROGLUTAMIC ACID" _chem_comp.type "L-PEPTIDE LINKING" _chem_comp.pdbx_type ATOMP _chem_comp.formula "C5 H7 N O3" _chem_comp.mon_nstd_parent_comp_id GLN _chem_comp.pdbx_synonyms ? _chem_comp.pdbx_formal_charge 0 _chem_comp.pdbx_initial_date 1999-07-08 _chem_comp.pdbx_modified_date 2023-11-03 _chem_comp.pdbx_ambiguous_flag N _chem_comp.pdbx_release_status REL _chem_comp.pdbx_replaced_by ? _chem_comp.pdbx_replaces PCC _chem_comp.formula_weight 129.114 _chem_comp.one_letter_code Q _chem_comp.three_letter_code PCA _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 ? _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.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 PCA N N N 0 1 N N N Y Y N 38.821 57.719 67.990 0.713 0.531 -0.633 N PCA 1 PCA CA CA C 0 1 N N S Y N N 38.455 58.883 67.183 -0.328 0.539 0.400 CA PCA 2 PCA CB CB C 0 1 N N N N N N 37.375 59.639 67.947 -1.455 -0.368 -0.140 CB PCA 3 PCA CG CG C 0 1 N N N N N N 37.746 59.312 69.375 -1.232 -0.272 -1.667 CG PCA 4 PCA CD CD C 0 1 N N N N N N 38.398 57.930 69.250 0.231 0.082 -1.807 CD PCA 5 PCA OE OE O 0 1 N N N N N N 38.575 57.133 70.197 0.876 -0.019 -2.829 OE PCA 6 PCA C C C 0 1 N N N Y N Y 39.640 59.813 66.967 0.214 -0.015 1.691 C PCA 7 PCA O O O 0 1 N N N Y N Y 40.560 59.863 67.790 1.122 -0.812 1.672 O PCA 8 PCA OXT OXT O 0 1 N Y N Y N Y 39.626 60.540 65.853 -0.311 0.374 2.863 OXT PCA 9 PCA H HN H 0 1 N N N Y Y N 39.309 56.868 67.709 1.631 0.810 -0.489 H PCA 10 PCA HA HA H 0 1 N N N Y N N 38.103 58.540 66.181 -0.700 1.552 0.552 HA PCA 11 PCA HB2 1HB H 0 1 N N N N N N 37.293 60.725 67.710 -1.331 -1.393 0.208 HB2 PCA 12 PCA HB3 2HB H 0 1 N N N N N N 36.325 59.396 67.657 -2.435 0.019 0.136 HB3 PCA 13 PCA HG2 1HG H 0 1 N N N N N N 38.375 60.080 69.881 -1.439 -1.230 -2.144 HG2 PCA 14 PCA HG3 2HG H 0 1 N N N N N N 36.900 59.365 70.100 -1.857 0.511 -2.095 HG3 PCA 15 PCA HXT HXT H 0 1 N Y N Y N Y 40.365 61.120 65.718 0.036 0.018 3.692 HXT PCA 16 # 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 PCA N CA SING N N 1 PCA N CD SING N N 2 PCA N H SING N N 3 PCA CA CB SING N N 4 PCA CA C SING N N 5 PCA CA HA SING N N 6 PCA CB CG SING N N 7 PCA CB HB2 SING N N 8 PCA CB HB3 SING N N 9 PCA CG CD SING N N 10 PCA CG HG2 SING N N 11 PCA CG HG3 SING N N 12 PCA CD OE DOUB N N 13 PCA C O DOUB N N 14 PCA C OXT SING N N 15 PCA OXT HXT SING N N 16 # 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 PCA SMILES ACDLabs 10.04 "O=C(O)C1NC(=O)CC1" PCA SMILES_CANONICAL CACTVS 3.341 "OC(=O)[C@@H]1CCC(=O)N1" PCA SMILES CACTVS 3.341 "OC(=O)[CH]1CCC(=O)N1" PCA SMILES_CANONICAL "OpenEye OEToolkits" 1.5.0 "C1CC(=O)N[C@@H]1C(=O)O" PCA SMILES "OpenEye OEToolkits" 1.5.0 "C1CC(=O)NC1C(=O)O" PCA InChI InChI 1.03 "InChI=1S/C5H7NO3/c7-4-2-1-3(6-4)5(8)9/h3H,1-2H2,(H,6,7)(H,8,9)/t3-/m0/s1" PCA InChIKey InChI 1.03 ODHCTXKNWHHXJC-VKHMYHEASA-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 PCA "SYSTEMATIC NAME" ACDLabs 10.04 5-oxo-L-proline PCA "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.5.0 "(2S)-5-oxopyrrolidine-2-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 PCA "Create component" 1999-07-08 RCSB PCA "Modify descriptor" 2011-06-04 RCSB PCA "Modify parent residue" 2019-11-14 RCSB PCA "Modify backbone" 2023-11-03 PDBE #