data_CXM # _chem_comp.id CXM _chem_comp.name N-CARBOXYMETHIONINE _chem_comp.type "L-PEPTIDE LINKING" _chem_comp.pdbx_type ATOMP _chem_comp.formula "C6 H11 N O4 S" _chem_comp.mon_nstd_parent_comp_id MET _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 193.221 _chem_comp.one_letter_code M _chem_comp.three_letter_code CXM _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 CXM N N N 0 1 N N N Y Y N 39.214 48.152 36.422 0.691 0.455 -1.020 N CXM 1 CXM CA CA C 0 1 N N S Y N N 37.856 47.966 36.947 -0.499 -0.322 -0.668 CA CXM 2 CXM CB CB C 0 1 N N N N N N 36.984 47.214 35.974 -0.960 0.059 0.739 CB CXM 3 CXM CG CG C 0 1 N N N N N N 36.759 47.954 34.672 0.157 -0.238 1.740 CG CXM 4 CXM SD SD S 0 1 N N N N N N 35.891 46.901 33.485 -0.388 0.214 3.409 SD CXM 5 CXM CE CE C 0 1 N N N N N N 37.295 45.994 32.900 1.091 -0.233 4.358 CE CXM 6 CXM C C C 0 1 N N N Y N Y 37.946 47.148 38.220 -1.600 -0.029 -1.654 C CXM 7 CXM O O O 0 1 N N N Y N Y 38.782 46.229 38.253 -2.422 -0.876 -1.912 O CXM 8 CXM CN CN C 0 1 N N N N N N 39.662 49.338 35.982 1.610 -0.062 -1.858 CN CXM 9 CXM ON1 O1 O 0 1 N N N N N N 40.719 49.110 35.410 1.452 -1.174 -2.322 ON1 CXM 10 CXM ON2 O2 O 0 1 N N N N N N 39.175 50.458 35.879 2.704 0.652 -2.182 ON2 CXM 11 CXM OXT OXT O 0 1 N Y N Y N Y 37.106 47.349 39.250 -1.669 1.173 -2.246 OXT CXM 12 CXM H HN H 0 1 N N N Y Y N 39.899 47.399 36.358 0.817 1.343 -0.650 H CXM 13 CXM HA HA H 0 1 N N N Y N N 37.408 48.971 37.127 -0.260 -1.385 -0.696 HA CXM 14 CXM HB2 1HB H 0 1 N N N N N N 37.392 46.194 35.783 -1.846 -0.519 1.001 HB2 CXM 15 CXM HB3 2HB H 0 1 N N N N N N 36.011 46.938 36.445 -1.199 1.122 0.767 HB3 CXM 16 CXM HG2 1HG H 0 1 N N N N N N 36.229 48.922 34.831 1.043 0.340 1.478 HG2 CXM 17 CXM HG3 2HG H 0 1 N N N N N N 37.711 48.353 34.252 0.396 -1.301 1.712 HG3 CXM 18 CXM HE1 1HE H 0 1 N N N N N N 36.759 45.344 32.168 0.925 -0.018 5.413 HE1 CXM 19 CXM HE2 2HE H 0 1 N N N N N N 38.151 46.591 32.508 1.295 -1.296 4.232 HE2 CXM 20 CXM HE3 3HE H 0 1 N N N N N N 37.915 45.477 33.669 1.942 0.345 3.998 HE3 CXM 21 CXM HO2 HO2 H 0 1 N N N N N N 39.492 51.297 35.567 3.364 0.281 -2.783 HO2 CXM 22 CXM HXT HXT H 0 1 N Y N Y N Y 37.162 46.836 40.047 -2.375 1.361 -2.879 HXT CXM 23 # 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 CXM N CA SING N N 1 CXM N CN SING N N 2 CXM N H SING N N 3 CXM CA CB SING N N 4 CXM CA C SING N N 5 CXM CA HA SING N N 6 CXM CB CG SING N N 7 CXM CB HB2 SING N N 8 CXM CB HB3 SING N N 9 CXM CG SD SING N N 10 CXM CG HG2 SING N N 11 CXM CG HG3 SING N N 12 CXM SD CE SING N N 13 CXM CE HE1 SING N N 14 CXM CE HE2 SING N N 15 CXM CE HE3 SING N N 16 CXM C O DOUB N N 17 CXM C OXT SING N N 18 CXM CN ON1 DOUB N N 19 CXM CN ON2 SING N N 20 CXM ON2 HO2 SING N N 21 CXM OXT HXT SING N N 22 # 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 CXM SMILES ACDLabs 10.04 "O=C(O)NC(C(=O)O)CCSC" CXM SMILES_CANONICAL CACTVS 3.341 "CSCC[C@H](NC(O)=O)C(O)=O" CXM SMILES CACTVS 3.341 "CSCC[CH](NC(O)=O)C(O)=O" CXM SMILES_CANONICAL "OpenEye OEToolkits" 1.5.0 "CSCC[C@@H](C(=O)O)NC(=O)O" CXM SMILES "OpenEye OEToolkits" 1.5.0 "CSCCC(C(=O)O)NC(=O)O" CXM InChI InChI 1.03 "InChI=1S/C6H11NO4S/c1-12-3-2-4(5(8)9)7-6(10)11/h4,7H,2-3H2,1H3,(H,8,9)(H,10,11)/t4-/m0/s1" CXM InChIKey InChI 1.03 LWQBAQJPCYBWJQ-BYPYZUCNSA-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 CXM "SYSTEMATIC NAME" ACDLabs 10.04 N-carboxy-L-methionine CXM "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.5.0 "(2S)-2-(carboxyamino)-4-methylsulfanyl-butanoic 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 CXM "Create component" 1999-07-08 RCSB CXM "Modify descriptor" 2011-06-04 RCSB CXM "Modify backbone" 2023-11-03 PDBE CXM "Modify PCM" 2024-09-27 PDBE # _pdbx_chem_comp_pcm.pcm_id 1 _pdbx_chem_comp_pcm.comp_id CXM _pdbx_chem_comp_pcm.modified_residue_id MET _pdbx_chem_comp_pcm.type Carboxylation _pdbx_chem_comp_pcm.category "Named protein modification" _pdbx_chem_comp_pcm.position "Amino-acid backbone" _pdbx_chem_comp_pcm.polypeptide_position N-terminal _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 ? #