data_SMC # _chem_comp.id SMC _chem_comp.name S-METHYLCYSTEINE _chem_comp.type "L-PEPTIDE LINKING" _chem_comp.pdbx_type ATOMP _chem_comp.formula "C4 H9 N O2 S" _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 CYM _chem_comp.formula_weight 135.185 _chem_comp.one_letter_code C _chem_comp.three_letter_code SMC _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 1CZI _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 SMC N N N 0 1 N N N Y Y N 89.125 16.244 32.120 -1.756 0.147 -0.531 N SMC 1 SMC CA CA C 0 1 N N R Y N N 89.871 17.282 31.364 -0.324 0.459 -0.633 CA SMC 2 SMC CB CB C 0 1 N N N N N N 89.608 17.089 29.876 0.430 -0.233 0.503 CB SMC 3 SMC SG SG S 0 1 N N N N N N 91.058 16.158 29.336 -0.205 0.353 2.097 SG SMC 4 SMC CS CS C 0 1 N N N N N N 91.343 16.417 27.571 0.840 -0.607 3.226 CS SMC 5 SMC C C C 0 1 N N N Y N Y 89.258 18.656 31.701 0.203 -0.028 -1.957 C SMC 6 SMC O O O 0 1 N N N Y N Y 88.481 19.181 30.903 -0.293 -0.993 -2.487 O SMC 7 SMC OXT OXT O 0 1 N Y N Y N Y 89.536 19.272 32.813 1.226 0.609 -2.548 OXT SMC 8 SMC H 1HN H 0 1 N N N Y Y N 89.301 16.373 33.116 -2.041 0.395 0.403 H SMC 9 SMC H2 2HN H 0 1 N Y N Y Y N 89.344 15.299 31.804 -1.840 -0.855 -0.604 H2 SMC 10 SMC HA HA H 0 1 N N N Y N N 90.955 17.215 31.615 -0.181 1.537 -0.559 HA SMC 11 SMC HB2 1HB H 0 1 N N N N N N 88.629 16.613 29.631 1.492 -0.002 0.427 HB2 SMC 12 SMC HB3 2HB H 0 1 N N N N N N 89.418 18.029 29.308 0.287 -1.311 0.429 HB3 SMC 13 SMC HCS1 1HCS H 0 0 N N N N N N 92.238 15.842 27.237 0.579 -0.365 4.256 HCS1 SMC 14 SMC HCS2 2HCS H 0 0 N N N N N N 90.440 16.172 26.963 0.681 -1.671 3.051 HCS2 SMC 15 SMC HCS3 3HCS H 0 0 N N N N N N 91.424 17.499 27.316 1.887 -0.361 3.049 HCS3 SMC 16 SMC HXT HXT H 0 1 N Y N Y N Y 89.158 20.118 33.020 1.564 0.296 -3.398 HXT SMC 17 # 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 SMC N CA SING N N 1 SMC N H SING N N 2 SMC N H2 SING N N 3 SMC CA CB SING N N 4 SMC CA C SING N N 5 SMC CA HA SING N N 6 SMC CB SG SING N N 7 SMC CB HB2 SING N N 8 SMC CB HB3 SING N N 9 SMC SG CS SING N N 10 SMC CS HCS1 SING N N 11 SMC CS HCS2 SING N N 12 SMC CS HCS3 SING N N 13 SMC C O DOUB N N 14 SMC C OXT SING N N 15 SMC 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 SMC SMILES ACDLabs 10.04 "O=C(O)C(N)CSC" SMC SMILES_CANONICAL CACTVS 3.341 "CSC[C@H](N)C(O)=O" SMC SMILES CACTVS 3.341 "CSC[CH](N)C(O)=O" SMC SMILES_CANONICAL "OpenEye OEToolkits" 1.5.0 "CSC[C@@H](C(=O)O)N" SMC SMILES "OpenEye OEToolkits" 1.5.0 "CSCC(C(=O)O)N" SMC InChI InChI 1.03 "InChI=1S/C4H9NO2S/c1-8-2-3(5)4(6)7/h3H,2,5H2,1H3,(H,6,7)/t3-/m0/s1" SMC InChIKey InChI 1.03 IDIDJDIHTAOVLG-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 SMC "SYSTEMATIC NAME" ACDLabs 10.04 S-methyl-L-cysteine SMC "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.5.0 "(2R)-2-amino-3-methylsulfanyl-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 SMC "Create component" 1999-07-08 RCSB SMC "Modify descriptor" 2011-06-04 RCSB SMC "Modify backbone" 2023-11-03 PDBE SMC "Modify PCM" 2024-09-27 PDBE # _pdbx_chem_comp_pcm.pcm_id 1 _pdbx_chem_comp_pcm.comp_id SMC _pdbx_chem_comp_pcm.modified_residue_id CYS _pdbx_chem_comp_pcm.type Methylation _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-0279 _pdbx_chem_comp_pcm.uniprot_generic_ptm_accession ? #