data_A1IQX # _chem_comp.id A1IQX _chem_comp.name NE2-acetamide-histidine _chem_comp.type "L-peptide linking" _chem_comp.pdbx_type ATOMP _chem_comp.formula "C8 H12 N4 O3" _chem_comp.mon_nstd_parent_comp_id HIS _chem_comp.pdbx_synonyms "(2~{S})-2-azanyl-3-[1-(2-azanyl-2-oxidanylidene-ethyl)imidazol-4-yl]propanoic acid; NE2-ethanamide-histidine" _chem_comp.pdbx_formal_charge 0 _chem_comp.pdbx_initial_date 2024-10-02 _chem_comp.pdbx_modified_date 2025-02-21 _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 212.206 _chem_comp.one_letter_code H _chem_comp.three_letter_code A1IQX _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 9GYH _chem_comp.pdbx_subcomponent_list ? _chem_comp.pdbx_processing_site PDBE _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 A1IQX CA C1 C 0 1 N N S N Y N -5.497 -7.709 24.631 2.644 0.190 0.315 CA A1IQX 1 A1IQX C02 C2 C 0 1 N N N N N N -9.152 -10.115 29.467 -4.111 -0.152 -0.363 C02 A1IQX 2 A1IQX C04 C3 C 0 1 N N N N N N -7.943 -10.945 29.086 -3.207 0.955 0.114 C04 A1IQX 3 A1IQX CE1 C4 C 0 1 Y N N N N N -5.849 -9.865 28.409 -1.400 -0.095 1.511 CE1 A1IQX 4 A1IQX CG C5 C 0 1 Y N N N N N -6.047 -9.629 26.274 0.207 -0.203 0.075 CG A1IQX 5 A1IQX CB C6 C 0 1 N N N N N N -5.723 -9.253 24.801 1.559 -0.482 -0.530 CB A1IQX 6 A1IQX C C7 C 0 1 N N N N Y Y -4.632 -7.422 23.454 4.001 -0.190 -0.217 C A1IQX 7 A1IQX CD2 C8 C 0 1 Y N N N N N -7.227 -10.219 26.775 -0.845 0.350 -0.559 CD2 A1IQX 8 A1IQX N01 N1 N 0 1 N N N N N N -9.544 -10.052 30.849 -5.403 0.107 -0.647 N01 A1IQX 9 A1IQX NE2 N2 N 0 1 Y N N N N N -7.053 -10.338 28.110 -1.864 0.421 0.352 NE2 A1IQX 10 A1IQX ND1 N3 N 0 1 Y N N N N N -5.232 -9.426 27.304 -0.160 -0.463 1.339 ND1 A1IQX 11 A1IQX N N4 N 0 1 N N N Y Y N -6.888 -7.207 24.380 2.482 1.648 0.250 N A1IQX 12 A1IQX O03 O1 O 0 1 N N N N N N -9.761 -9.544 28.593 -3.676 -1.277 -0.492 O03 A1IQX 13 A1IQX O O2 O 0 1 N N N N Y Y -3.474 -7.732 23.474 4.607 0.577 -0.929 O A1IQX 14 A1IQX HA H1 H 0 1 N N N N Y N -5.078 -7.280 25.553 2.554 -0.140 1.350 HA A1IQX 15 A1IQX H1 H2 H 0 1 N N N N N N -8.303 -11.898 28.671 -3.158 1.737 -0.644 H1 A1IQX 16 A1IQX H3 H3 H 0 1 N N N N N N -7.363 -11.139 30.000 -3.602 1.372 1.041 H3 A1IQX 17 A1IQX HE1 H4 H 0 1 N N N N N N -5.427 -9.838 29.403 -1.961 -0.183 2.430 HE1 A1IQX 18 A1IQX HB2 H5 H 0 1 N N N N N N -6.563 -9.563 24.161 1.592 -0.086 -1.545 HB2 A1IQX 19 A1IQX HB3 H6 H 0 1 N N N N N N -4.810 -9.783 24.490 1.731 -1.558 -0.554 HB3 A1IQX 20 A1IQX HD2 H8 H 0 1 N N N N N N -8.095 -10.516 26.206 -0.878 0.675 -1.588 HD2 A1IQX 21 A1IQX H9 H9 H 0 1 N N N N N N -10.348 -9.521 31.117 -5.751 1.007 -0.544 H9 A1IQX 22 A1IQX H10 H10 H 0 1 N N N N N N -9.013 -10.539 31.542 -5.985 -0.605 -0.954 H10 A1IQX 23 A1IQX H H11 H 0 1 N N N Y N N -7.462 -7.404 25.175 3.146 2.113 0.851 H A1IQX 24 A1IQX H2 H12 H 0 1 N N N Y Y N -6.863 -6.220 24.223 2.561 1.979 -0.700 H2 A1IQX 25 A1IQX OXT OXT O 0 1 N N N N Y Y ? ? ? 4.538 -1.378 0.099 OXT A1IQX 26 A1IQX HXT H13 H 0 1 N N N N Y Y ? ? ? 5.411 -1.577 -0.266 HXT A1IQX 27 # 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 A1IQX C O DOUB N N 1 A1IQX C CA SING N N 2 A1IQX N CA SING N N 3 A1IQX CA CB SING N N 4 A1IQX CB CG SING N N 5 A1IQX CG CD2 DOUB Y N 6 A1IQX CG ND1 SING Y N 7 A1IQX CD2 NE2 SING Y N 8 A1IQX ND1 CE1 DOUB Y N 9 A1IQX NE2 CE1 SING Y N 10 A1IQX NE2 C04 SING N N 11 A1IQX O03 C02 DOUB N N 12 A1IQX C04 C02 SING N N 13 A1IQX C02 N01 SING N N 14 A1IQX CA HA SING N N 15 A1IQX C04 H1 SING N N 16 A1IQX C04 H3 SING N N 17 A1IQX CE1 HE1 SING N N 18 A1IQX CB HB2 SING N N 19 A1IQX CB HB3 SING N N 20 A1IQX CD2 HD2 SING N N 21 A1IQX N01 H9 SING N N 22 A1IQX N01 H10 SING N N 23 A1IQX N H SING N N 24 A1IQX N H2 SING N N 25 A1IQX C OXT SING N N 26 A1IQX OXT HXT SING N N 27 # 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 A1IQX InChI InChI 1.06 "InChI=1S/C8H12N4O3/c9-6(8(14)15)1-5-2-12(4-11-5)3-7(10)13/h2,4,6H,1,3,9H2,(H2,10,13)(H,14,15)/t6-/m0/s1" A1IQX InChIKey InChI 1.06 YMBDHBKBPWARBP-LURJTMIESA-N A1IQX SMILES_CANONICAL CACTVS 3.385 "N[C@@H](Cc1cn(CC(N)=O)cn1)C(O)=O" A1IQX SMILES CACTVS 3.385 "N[CH](Cc1cn(CC(N)=O)cn1)C(O)=O" A1IQX SMILES_CANONICAL "OpenEye OEToolkits" 2.0.7 "c1c(ncn1CC(=O)N)C[C@@H](C(=O)O)N" A1IQX SMILES "OpenEye OEToolkits" 2.0.7 "c1c(ncn1CC(=O)N)CC(C(=O)O)N" # _pdbx_chem_comp_identifier.comp_id A1IQX _pdbx_chem_comp_identifier.type "SYSTEMATIC NAME" _pdbx_chem_comp_identifier.program "OpenEye OEToolkits" _pdbx_chem_comp_identifier.program_version 2.0.7 _pdbx_chem_comp_identifier.identifier "(2~{S})-2-azanyl-3-[1-(2-azanyl-2-oxidanylidene-ethyl)imidazol-4-yl]propanoic acid" # loop_ _pdbx_chem_comp_synonyms.ordinal _pdbx_chem_comp_synonyms.comp_id _pdbx_chem_comp_synonyms.name _pdbx_chem_comp_synonyms.provenance _pdbx_chem_comp_synonyms.type 1 A1IQX "(2~{S})-2-azanyl-3-[1-(2-azanyl-2-oxidanylidene-ethyl)imidazol-4-yl]propanoic acid" PDB ? 2 A1IQX NE2-ethanamide-histidine PDB ? # _pdbx_chem_comp_pcm.pcm_id 1 _pdbx_chem_comp_pcm.comp_id A1IQX _pdbx_chem_comp_pcm.modified_residue_id HIS _pdbx_chem_comp_pcm.type Acetamidation _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 ? _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 A1IQX "Create component" 2024-10-02 PDBE A1IQX "Modify synonyms" 2024-10-02 PDBE A1IQX "Modify PCM" 2024-10-02 PDBE A1IQX "Modify PCM" 2025-01-21 PDBE A1IQX "Modify leaving atom flag" 2025-02-19 PDBE A1IQX "Initial release" 2025-02-26 RCSB #