data_CSS # _chem_comp.id CSS _chem_comp.name S-MERCAPTOCYSTEINE _chem_comp.type "L-PEPTIDE LINKING" _chem_comp.pdbx_type ATOMP _chem_comp.formula "C3 H7 N O2 S2" _chem_comp.mon_nstd_parent_comp_id CYS _chem_comp.pdbx_synonyms ? _chem_comp.pdbx_formal_charge 0 _chem_comp.pdbx_initial_date 1999-07-08 _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 153.223 _chem_comp.one_letter_code C _chem_comp.three_letter_code CSS _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 _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 CSS N N N 0 1 N N N Y Y N 12.713 30.986 7.305 -1.818 -0.475 1.901 N CSS 1 CSS CA CA C 0 1 N N R Y N N 12.265 29.648 7.704 -0.739 -0.390 0.908 CA CSS 2 CSS CB CB C 0 1 N N N N N N 10.783 29.652 8.102 -0.998 0.794 -0.025 CB CSS 3 CSS SG SG S 0 1 N N N N N N 10.441 30.435 9.708 0.350 0.920 -1.231 SG CSS 4 CSS SD SD S 0 1 N N N N N N 10.674 28.919 11.032 -0.130 -0.642 -2.468 SD CSS 5 CSS C C C 0 1 N N N Y N Y 12.450 28.660 6.583 0.578 -0.196 1.612 C CSS 6 CSS O O O 0 1 N N N Y N Y 12.518 27.459 6.806 0.617 0.386 2.670 O CSS 7 CSS OXT OXT O 0 1 N Y N Y N Y 12.468 29.172 5.362 1.708 -0.669 1.064 OXT CSS 8 CSS H H H 0 1 N N N Y Y N 12.587 31.655 8.064 -1.871 0.427 2.350 H CSS 9 CSS H2 HN2 H 0 1 N Y N Y Y N 12.252 31.297 6.449 -2.678 -0.594 1.387 HN2 CSS 10 CSS HA HA H 0 1 N N N Y N N 12.886 29.348 8.579 -0.708 -1.311 0.325 HA CSS 11 CSS HB2 HB2 H 0 1 N N N N N N 10.165 30.121 7.300 -1.942 0.643 -0.550 HB2 CSS 12 CSS HB3 HB3 H 0 1 N N N N N N 10.370 28.616 8.078 -1.050 1.712 0.559 HB3 CSS 13 CSS HD HD H 0 1 N N N N N N 10.495 29.327 11.870 0.869 -0.548 -3.362 HD CSS 14 CSS HXT HXT H 0 1 N Y N Y N Y 12.584 28.548 4.654 2.554 -0.545 1.516 HXT CSS 15 # 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 CSS N CA SING N N 1 CSS N H SING N N 2 CSS N H2 SING N N 3 CSS CA CB SING N N 4 CSS CA C SING N N 5 CSS CA HA SING N N 6 CSS CB SG SING N N 7 CSS CB HB2 SING N N 8 CSS CB HB3 SING N N 9 CSS SG SD SING N N 10 CSS SD HD SING N N 11 CSS C O DOUB N N 12 CSS C OXT SING N N 13 CSS OXT HXT SING N N 14 # 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 CSS SMILES ACDLabs 10.04 "O=C(O)C(N)CSS" CSS SMILES_CANONICAL CACTVS 3.341 "N[C@@H](CSS)C(O)=O" CSS SMILES CACTVS 3.341 "N[CH](CSS)C(O)=O" CSS SMILES_CANONICAL "OpenEye OEToolkits" 1.5.0 "C([C@@H](C(=O)O)N)SS" CSS SMILES "OpenEye OEToolkits" 1.5.0 "C(C(C(=O)O)N)SS" CSS InChI InChI 1.03 "InChI=1S/C3H7NO2S2/c4-2(1-8-7)3(5)6/h2,7H,1,4H2,(H,5,6)/t2-/m0/s1" CSS InChIKey InChI 1.03 XBKONSCREBSMCS-REOHCLBHSA-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 CSS "SYSTEMATIC NAME" ACDLabs 10.04 3-disulfanyl-L-alanine CSS "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.5.0 "(2R)-2-amino-3-disulfanyl-propanoic 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 CSS "Create component" 1999-07-08 RCSB CSS "Modify descriptor" 2011-06-04 RCSB CSS "Modify leaving atom flag" 2021-08-28 PDBE CSS "Modify backbone" 2023-11-03 PDBE CSS "Modify PCM" 2024-09-27 PDBE # _pdbx_chem_comp_pcm.pcm_id 1 _pdbx_chem_comp_pcm.comp_id CSS _pdbx_chem_comp_pcm.modified_residue_id CYS _pdbx_chem_comp_pcm.type Sulfhydration _pdbx_chem_comp_pcm.category "Named protein modification" _pdbx_chem_comp_pcm.position "Amino-acid side chain" _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 PTM-0106 _pdbx_chem_comp_pcm.uniprot_generic_ptm_accession ? #