data_XAK # _chem_comp.id XAK _chem_comp.name "S-(carboxymethyl)-L-cysteinylglycinamide" _chem_comp.type peptide-like _chem_comp.pdbx_type HETAIN _chem_comp.formula "C7 H13 N3 O4 S" _chem_comp.mon_nstd_parent_comp_id ? _chem_comp.pdbx_synonyms ? _chem_comp.pdbx_formal_charge 0 _chem_comp.pdbx_initial_date 2022-11-08 _chem_comp.pdbx_modified_date 2025-10-10 _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 235.261 _chem_comp.one_letter_code ? _chem_comp.three_letter_code XAK _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 8F1F _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 XAK C7 C1 C 0 1 N N N N N N 20.446 -17.274 8.183 -4.556 -1.174 -0.102 C7 XAK 1 XAK C1 C2 C 0 1 N N R N N N 23.111 -13.177 7.780 -0.303 1.211 -0.457 C1 XAK 2 XAK C6 C3 C 0 1 N N N N N N 20.949 -16.102 8.966 -3.848 0.055 0.407 C6 XAK 3 XAK C4 C4 C 0 1 N N N N N N 25.968 -13.804 5.737 3.241 -0.803 0.617 C4 XAK 4 XAK C3 C5 C 0 1 N N N N N N 22.197 -14.048 8.606 -1.684 1.143 0.141 C3 XAK 5 XAK C2 C6 C 0 1 N N N N N N 24.596 -13.228 8.277 0.632 0.274 0.310 C2 XAK 6 XAK N N1 N 0 1 N N N N N N 22.620 -11.810 7.918 0.203 2.587 -0.367 N XAK 7 XAK C C7 C 0 1 N N N N N N 25.345 -13.666 4.330 4.669 -0.848 0.137 C XAK 8 XAK O O1 O 0 1 N N N N N N 25.551 -14.462 3.377 5.013 -0.169 -0.801 O XAK 9 XAK N5 N2 N 0 1 N N N N N N 21.800 -15.243 8.170 -2.505 0.121 -0.174 N5 XAK 10 XAK O8 O2 O 0 1 N N N N N N 20.596 -17.362 6.957 -3.992 -1.924 -0.871 O8 XAK 11 XAK N9 N3 N 0 1 N N N N N N 19.777 -18.161 8.906 -5.814 -1.443 0.300 N9 XAK 12 XAK O4 O3 O 0 1 N N N N N N 21.742 -13.677 9.663 -2.057 2.007 0.905 O4 XAK 13 XAK S3 S1 S 0 1 N N N N N N 25.663 -12.554 7.026 2.295 0.356 -0.410 S3 XAK 14 XAK H1 H1 H 0 1 N N N N N N 23.075 -13.494 6.727 -0.344 0.907 -1.503 H1 XAK 15 XAK H2 H2 H 0 1 N N N N N N 21.524 -16.471 9.828 -4.412 0.943 0.122 H2 XAK 16 XAK H3 H3 H 0 1 N N N N N N 20.088 -15.517 9.323 -3.772 0.006 1.493 H3 XAK 17 XAK H4 H4 H 0 1 N N N N N N 25.615 -14.764 6.142 2.801 -1.797 0.542 H4 XAK 18 XAK H5 H5 H 0 1 N N N N N N 27.058 -13.845 5.594 3.217 -0.472 1.655 H5 XAK 19 XAK H6 H6 H 0 1 N N N N N N 24.880 -14.272 8.478 0.673 0.578 1.356 H6 XAK 20 XAK H7 H7 H 0 1 N N N N N N 24.694 -12.637 9.200 0.257 -0.748 0.243 H7 XAK 21 XAK H8 H8 H 0 1 N N N N N N 21.672 -11.763 7.604 -0.361 3.216 -0.919 H8 XAK 22 XAK H9 H9 H 0 1 N Y N N N N 22.667 -11.534 8.878 0.250 2.893 0.593 H9 XAK 23 XAK H11 H11 H 0 1 N Y N N N N 24.146 -12.580 3.348 6.463 -1.639 0.408 H11 XAK 24 XAK H12 H12 H 0 1 N N N N N N 22.098 -15.555 7.268 -2.207 -0.570 -0.786 H12 XAK 25 XAK H13 H13 H 0 1 N N N N N N 19.360 -18.955 8.463 -6.263 -0.846 0.918 H13 XAK 26 XAK H14 H14 H 0 1 N N N N N N 19.689 -18.036 9.894 -6.269 -2.234 -0.028 H14 XAK 27 XAK OXT O4 O 0 1 N Y N N N N 24.516 -12.605 4.222 5.559 -1.643 0.752 OXT XAK 28 # 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 XAK O C DOUB N N 1 XAK C C4 SING N N 2 XAK C4 S3 SING N N 3 XAK O8 C7 DOUB N N 4 XAK S3 C2 SING N N 5 XAK C1 N SING N N 6 XAK C1 C2 SING N N 7 XAK C1 C3 SING N N 8 XAK N5 C3 SING N N 9 XAK N5 C6 SING N N 10 XAK C7 N9 SING N N 11 XAK C7 C6 SING N N 12 XAK C3 O4 DOUB N N 13 XAK C1 H1 SING N N 14 XAK C6 H2 SING N N 15 XAK C6 H3 SING N N 16 XAK C4 H4 SING N N 17 XAK C4 H5 SING N N 18 XAK C2 H6 SING N N 19 XAK C2 H7 SING N N 20 XAK N H8 SING N N 21 XAK N H9 SING N N 22 XAK N5 H12 SING N N 23 XAK N9 H13 SING N N 24 XAK N9 H14 SING N N 25 XAK C OXT SING N N 26 XAK OXT H11 SING N N 27 # 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 XAK SMILES ACDLabs 12.01 "O=C(NCC(N)=O)C(N)CSCC(O)=O" XAK InChI InChI 1.06 "InChI=1S/C7H13N3O4S/c8-4(2-15-3-6(12)13)7(14)10-1-5(9)11/h4H,1-3,8H2,(H2,9,11)(H,10,14)(H,12,13)/t4-/m0/s1" XAK InChIKey InChI 1.06 ZZXDBFLMVILUCE-BYPYZUCNSA-N XAK SMILES_CANONICAL CACTVS 3.385 "N[C@@H](CSCC(O)=O)C(=O)NCC(N)=O" XAK SMILES CACTVS 3.385 "N[CH](CSCC(O)=O)C(=O)NCC(N)=O" XAK SMILES_CANONICAL "OpenEye OEToolkits" 2.0.7 "C([C@@H](C(=O)NCC(=O)N)N)SCC(=O)O" XAK SMILES "OpenEye OEToolkits" 2.0.7 "C(C(C(=O)NCC(=O)N)N)SCC(=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 XAK "SYSTEMATIC NAME" ACDLabs 12.01 "S-(carboxymethyl)-L-cysteinylglycinamide" XAK "SYSTEMATIC NAME" "OpenEye OEToolkits" 2.0.7 "2-[(2~{R})-2-azanyl-3-[(2-azanyl-2-oxidanylidene-ethyl)amino]-3-oxidanylidene-propyl]sulfanylethanoic 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 XAK "Create component" 2022-11-08 RCSB XAK "Modify PCM" 2025-10-06 PDBE XAK "Initial release" 2025-10-15 RCSB # _pdbx_chem_comp_pcm.pcm_id 1 _pdbx_chem_comp_pcm.comp_id XAK _pdbx_chem_comp_pcm.modified_residue_id ASN _pdbx_chem_comp_pcm.type None _pdbx_chem_comp_pcm.category "Non-standard residue" _pdbx_chem_comp_pcm.position "Amino-acid backbone" _pdbx_chem_comp_pcm.polypeptide_position "Any 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 ? #