data_SCH # _chem_comp.id SCH _chem_comp.name S-METHYL-THIO-CYSTEINE _chem_comp.type "L-PEPTIDE LINKING" _chem_comp.pdbx_type ATOMP _chem_comp.formula "C4 H9 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 167.250 _chem_comp.one_letter_code C _chem_comp.three_letter_code SCH _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 1AEX _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 SCH N N N 0 1 N N N Y Y N 12.893 20.925 16.214 0.462 1.030 0.971 N SCH 1 SCH CA CA C 0 1 N N R Y N N 14.090 21.534 15.618 1.140 -0.186 0.502 CA SCH 2 SCH CB CB C 0 1 N N N N N N 13.700 22.526 14.501 0.283 -0.869 -0.565 CB SCH 3 SCH SG SG S 0 1 N N N N N N 12.747 24.016 15.018 -1.327 -1.310 0.144 SG SCH 4 SCH SD SD S 0 1 N N N N N N 11.171 24.053 13.733 -2.230 0.512 0.406 SD SCH 5 SCH CE CE C 0 1 N N N N N N 10.020 22.860 14.484 -2.969 0.838 -1.218 CE SCH 6 SCH C C C 0 1 N N N Y N Y 14.897 22.283 16.680 2.478 0.181 -0.087 C SCH 7 SCH O O O 0 1 N N N Y N Y 14.375 22.611 17.749 2.689 1.314 -0.448 O SCH 8 SCH OXT OXT O 0 1 N Y N Y N Y 16.159 22.573 16.384 3.435 -0.752 -0.211 OXT SCH 9 SCH H H H 0 1 N N N Y Y N 13.166 20.287 16.934 0.977 1.465 1.721 H SCH 10 SCH H2 HN H 0 1 N Y N Y Y N 12.315 21.641 16.605 0.315 1.678 0.211 H2 SCH 11 SCH HA HA H 0 1 N N N Y N N 14.700 20.723 15.193 1.287 -0.866 1.341 HA SCH 12 SCH HB2 HB1 H 0 1 N N N N N N 14.634 22.881 14.041 0.136 -0.189 -1.404 HB2 SCH 13 SCH HB3 HB2 H 0 1 N N N N N N 13.077 21.976 13.781 0.786 -1.771 -0.912 HB3 SCH 14 SCH HE1 HE1 H 0 1 N N N N N N 9.111 22.790 13.869 -2.186 0.864 -1.975 HE1 SCH 15 SCH HE2 HE2 H 0 1 N N N N N N 10.501 21.872 14.541 -3.681 0.049 -1.458 HE2 SCH 16 SCH HE3 HE3 H 0 1 N N N N N N 9.753 23.196 15.497 -3.485 1.798 -1.196 HE3 SCH 17 SCH HXT HXT H 0 1 N Y N Y N Y 16.553 23.049 17.106 4.277 -0.470 -0.594 HXT SCH 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 SCH N CA SING N N 1 SCH N H SING N N 2 SCH N H2 SING N N 3 SCH CA CB SING N N 4 SCH CA C SING N N 5 SCH CA HA SING N N 6 SCH CB SG SING N N 7 SCH CB HB2 SING N N 8 SCH CB HB3 SING N N 9 SCH SG SD SING N N 10 SCH SD CE SING N N 11 SCH CE HE1 SING N N 12 SCH CE HE2 SING N N 13 SCH CE HE3 SING N N 14 SCH C O DOUB N N 15 SCH C OXT SING N N 16 SCH OXT HXT SING N N 17 # 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 SCH SMILES ACDLabs 10.04 "O=C(O)C(N)CSSC" SCH SMILES_CANONICAL CACTVS 3.370 "CSSC[C@H](N)C(O)=O" SCH SMILES CACTVS 3.370 "CSSC[CH](N)C(O)=O" SCH SMILES_CANONICAL "OpenEye OEToolkits" 1.7.0 "CSSC[C@@H](C(=O)O)N" SCH SMILES "OpenEye OEToolkits" 1.7.0 "CSSCC(C(=O)O)N" SCH InChI InChI 1.03 "InChI=1S/C4H9NO2S2/c1-8-9-2-3(5)4(6)7/h3H,2,5H2,1H3,(H,6,7)/t3-/m0/s1" SCH InChIKey InChI 1.03 PYFNLWPQPNXHCS-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 SCH "SYSTEMATIC NAME" ACDLabs 10.04 "3-(methyldisulfanyl)-L-alanine" SCH "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.7.0 "(2R)-2-azanyl-3-methyldisulfanyl-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 SCH "Other modification" 1999-07-08 RCSB SCH "Other modification" 2010-09-09 RCSB SCH "Modify descriptor" 2011-06-04 RCSB SCH "Modify backbone" 2023-11-03 PDBE SCH "Modify PCM" 2024-09-27 PDBE # _pdbx_chem_comp_pcm.pcm_id 1 _pdbx_chem_comp_pcm.comp_id SCH _pdbx_chem_comp_pcm.modified_residue_id CYS _pdbx_chem_comp_pcm.type Methylsulfanylation _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-0104 _pdbx_chem_comp_pcm.uniprot_generic_ptm_accession ? #