data_MS6
# 
_chem_comp.id                                    MS6 
_chem_comp.name                                  "(2S)-2-amino-4-(methylsulfanyl)butane-1-thiol" 
_chem_comp.type                                  "L-peptide linking" 
_chem_comp.pdbx_type                             ATOMP 
_chem_comp.formula                               "C5 H11 N O S2" 
_chem_comp.mon_nstd_parent_comp_id               MET 
_chem_comp.pdbx_synonyms                         "(2S)-2-amino-4-(methylsulfanyl)butanethioic O-acid" 
_chem_comp.pdbx_formal_charge                    0 
_chem_comp.pdbx_initial_date                     2020-09-03 
_chem_comp.pdbx_modified_date                    2025-12-15 
_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                        165.277 
_chem_comp.one_letter_code                       ? 
_chem_comp.three_letter_code                     MS6 
_chem_comp.pdbx_model_coordinates_details        ? 
_chem_comp.pdbx_model_coordinates_missing_flag   Y 
_chem_comp.pdbx_ideal_coordinates_details        Corina 
_chem_comp.pdbx_ideal_coordinates_missing_flag   N 
_chem_comp.pdbx_model_coordinates_db_code        7K00 
_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_n_terminal_atom_flag 
_chem_comp_atom.pdbx_backbone_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 
MS6 CA  CA  C 0 1 N N S N Y N 201.666 147.529 169.717 0.835  -0.261 -0.649 CA  MS6 1  
MS6 C   C   C 0 1 N N N N Y Y 201.853 148.346 168.430 2.110  0.421  -0.223 C   MS6 2  
MS6 CB  CB  C 0 1 N N N N N N 201.571 146.035 169.408 -0.345 0.340  0.116  CB  MS6 3  
MS6 CG  CG  C 0 1 N N N N N N 201.440 145.174 170.659 -1.651 -0.263 -0.405 CG  MS6 4  
MS6 SD  SD  S 0 1 N N N N N N 202.890 145.327 171.720 -3.051 0.451  0.502  SD  MS6 5  
MS6 CE  CE  C 0 1 N N N N N N 202.315 146.569 172.878 -4.484 -0.374 -0.245 CE  MS6 6  
MS6 N   N1  N 0 1 N N N Y Y N 200.442 147.975 170.430 0.927  -1.698 -0.358 N   MS6 7  
MS6 S   S   S 0 1 N N N N Y Y 200.523 148.830 167.522 3.243  -0.409 0.541  S   MS6 8  
MS6 HA  H1  H 0 1 N N N N Y N 202.540 147.696 170.364 0.686  -0.116 -1.719 HA  MS6 9  
MS6 HB2 H4  H 0 1 N N N N N N 200.690 145.864 168.771 -0.241 0.118  1.178  HB2 MS6 10 
MS6 HB3 H5  H 0 1 N N N N N N 202.479 145.731 168.867 -0.360 1.421  -0.030 HB3 MS6 11 
MS6 HG2 H6  H 0 1 N N N N N N 200.550 145.493 171.221 -1.756 -0.041 -1.467 HG2 MS6 12 
MS6 HG3 H7  H 0 1 N N N N N N 201.326 144.122 170.359 -1.636 -1.343 -0.260 HG3 MS6 13 
MS6 HE1 H8  H 0 1 N N N N N N 203.106 146.781 173.612 -4.517 -0.149 -1.311 HE1 MS6 14 
MS6 HE2 H9  H 0 1 N N N N N N 202.065 147.491 172.333 -4.398 -1.451 -0.103 HE2 MS6 15 
MS6 HE3 H10 H 0 1 N N N N N N 201.421 146.198 173.400 -5.397 -0.016 0.231  HE3 MS6 16 
MS6 H   H11 H 0 1 N N N Y Y N 200.328 147.438 171.266 1.066  -1.858 0.629  H   MS6 17 
MS6 H2  H12 H 0 1 N Y N Y Y N 200.527 148.943 170.665 0.111  -2.188 -0.693 H2  MS6 18 
MS6 OXT OXT O 0 1 N Y N N Y Y ?       ?       ?       2.294  1.727  -0.486 OXT MS6 19 
MS6 HXT HXT H 0 1 N Y N N Y Y ?       ?       ?       3.128  2.120  -0.193 HXT MS6 20 
# 
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 
MS6 S   C   DOUB N N 1  
MS6 C   CA  SING N N 2  
MS6 CB  CA  SING N N 3  
MS6 CB  CG  SING N N 4  
MS6 CA  N   SING N N 5  
MS6 CG  SD  SING N N 6  
MS6 SD  CE  SING N N 7  
MS6 CA  HA  SING N N 8  
MS6 CB  HB2 SING N N 9  
MS6 CB  HB3 SING N N 10 
MS6 CG  HG2 SING N N 11 
MS6 CG  HG3 SING N N 12 
MS6 CE  HE1 SING N N 13 
MS6 CE  HE2 SING N N 14 
MS6 CE  HE3 SING N N 15 
MS6 N   H   SING N N 16 
MS6 N   H2  SING N N 17 
MS6 C   OXT SING N N 18 
MS6 OXT HXT SING N N 19 
# 
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 
MS6 SMILES           ACDLabs              12.01 "C(N)(CS)CCSC"                                                            
MS6 InChI            InChI                1.06  "InChI=1S/C5H11NOS2/c1-9-3-2-4(6)5(7)8/h4H,2-3,6H2,1H3,(H,7,8)/t4-/m0/s1" 
MS6 InChIKey         InChI                1.06  IXNUCNJMRZVHDV-BYPYZUCNSA-N                                               
MS6 SMILES_CANONICAL CACTVS               3.385 "CSCC[C@H](N)C(O)=S"                                                      
MS6 SMILES           CACTVS               3.385 "CSCC[CH](N)C(O)=S"                                                       
MS6 SMILES_CANONICAL "OpenEye OEToolkits" 2.0.7 "CSCC[C@@H](C(=S)O)N"                                                     
MS6 SMILES           "OpenEye OEToolkits" 2.0.7 "CSCCC(C(=S)O)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 
MS6 "SYSTEMATIC NAME" ACDLabs              12.01 "(2S)-2-amino-4-(methylsulfanyl)butane-1-thiol"         
MS6 "SYSTEMATIC NAME" "OpenEye OEToolkits" 2.0.7 "(2~{S})-2-azanyl-4-methylsulfanyl-butanethioic O-acid" 
# 
_pdbx_chem_comp_pcm.pcm_id                             1 
_pdbx_chem_comp_pcm.comp_id                            MS6 
_pdbx_chem_comp_pcm.modified_residue_id                MET 
_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      ? 
# 
loop_
_pdbx_chem_comp_audit.comp_id 
_pdbx_chem_comp_audit.action_type 
_pdbx_chem_comp_audit.date 
_pdbx_chem_comp_audit.processing_site 
MS6 "Create component"   2020-09-03 RCSB 
MS6 "Initial release"    2020-09-23 RCSB 
MS6 "Modify backbone"    2023-11-03 PDBE 
MS6 "Modify PCM"         2024-09-27 PDBE 
MS6 "Other modification" 2025-10-23 PDBE 
MS6 "Other modification" 2025-12-15 PDBE 
# 
_pdbx_chem_comp_synonyms.ordinal      1 
_pdbx_chem_comp_synonyms.comp_id      MS6 
_pdbx_chem_comp_synonyms.name         "(2S)-2-amino-4-(methylsulfanyl)butanethioic O-acid" 
_pdbx_chem_comp_synonyms.provenance   AUTHOR 
_pdbx_chem_comp_synonyms.type         ? 
# 
