data_OYL
# 
_chem_comp.id                                    OYL 
_chem_comp.name                                  1-ethyl-L-histidine 
_chem_comp.type                                  "L-peptide linking" 
_chem_comp.pdbx_type                             ATOMP 
_chem_comp.formula                               "C8 H13 N3 O2" 
_chem_comp.mon_nstd_parent_comp_id               HIS 
_chem_comp.pdbx_synonyms                         ? 
_chem_comp.pdbx_formal_charge                    0 
_chem_comp.pdbx_initial_date                     2014-02-28 
_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                        183.208 
_chem_comp.one_letter_code                       ? 
_chem_comp.three_letter_code                     OYL 
_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        4OYL 
_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 
OYL C   C   C 0 1 N N N Y N Y -16.506 37.160 3.754  3.307  0.054  0.133  C   OYL 1  
OYL O   O   O 0 1 N N N Y N Y -15.417 37.421 4.332  3.918  -0.967 0.347  O   OYL 2  
OYL CA  CA  C 0 1 N N S Y N N -16.452 36.654 2.312  1.900  -0.009 -0.402 CA  OYL 3  
OYL N   N   N 0 1 N N N Y Y N -17.637 35.820 2.005  1.668  -1.322 -1.019 N   OYL 4  
OYL CB  CB  C 0 1 N N N N N N -16.257 37.764 1.267  0.909  0.197  0.745  CB  OYL 5  
OYL CG  CG  C 0 1 Y N N N N N -17.337 38.844 1.249  -0.493 0.257  0.193  CG  OYL 6  
OYL CD2 CD2 C 0 1 Y N N N N N -18.427 38.963 0.413  -1.529 -0.511 0.580  CD2 OYL 7  
OYL NE2 NE2 N 0 1 Y N N N N N -19.094 40.090 0.750  -2.607 -0.129 -0.171 NE2 OYL 8  
OYL CE1 CE1 C 0 1 Y N N N N N -18.439 40.701 1.750  -2.192 0.860  -0.992 CE1 OYL 9  
OYL ND1 ND1 N 0 1 Y N N N N N -17.383 39.937 2.068  -0.928 1.089  -0.764 ND1 OYL 10 
OYL CZ  CZ  C 0 1 N N N N N N -20.336 40.620 0.130  -3.959 -0.689 -0.100 CZ  OYL 11 
OYL CT  CT  C 0 1 N N N N N N -20.532 40.159 -1.299 -4.781 0.093  0.927  CT  OYL 12 
OYL OXT OXT O 0 1 N Y N Y N Y -17.708 37.465 4.297  3.880  1.243  0.376  OXT OYL 13 
OYL HA  H1  H 0 1 N N N Y N N -15.570 36.001 2.242  1.760  0.772  -1.148 H1  OYL 14 
OYL H2  H2  H 0 1 N Y N Y Y N -17.735 35.110 2.702  1.792  -2.064 -0.346 H2  OYL 15 
OYL H   H3  H 0 1 N N N Y Y N -18.456 36.394 1.997  0.753  -1.367 -1.442 H3  OYL 16 
OYL H5  H5  H 0 1 N N N N N N -16.231 37.294 0.273  0.988  -0.633 1.447  H5  OYL 17 
OYL H6  H6  H 0 1 N N N N N N -15.292 38.252 1.467  1.137  1.131  1.259  H6  OYL 18 
OYL H7  H7  H 0 1 N N N N N N -18.700 38.276 -0.374 -1.512 -1.281 1.337  H7  OYL 19 
OYL H8  H8  H 0 1 N N N N N N -18.712 41.637 2.214  -2.806 1.379  -1.713 H8  OYL 20 
OYL H9  H9  H 0 1 N N N N N N -20.290 41.719 0.140  -4.435 -0.617 -1.078 H9  OYL 21 
OYL H10 H10 H 0 1 N N N N N N -21.196 40.283 0.727  -3.903 -1.735 0.201  H10 OYL 22 
OYL H11 H11 H 0 1 N N N N N N -21.465 40.585 -1.697 -4.305 0.021  1.905  H11 OYL 23 
OYL H12 H12 H 0 1 N N N N N N -19.684 40.496 -1.913 -4.837 1.140  0.626  H12 OYL 24 
OYL H13 H13 H 0 1 N N N N N N -20.590 39.061 -1.325 -5.787 -0.323 0.980  H13 OYL 25 
OYL HXT HXT H 0 1 N Y N Y N Y -17.578 37.885 5.139  4.783  1.232  0.723  HXT OYL 26 
# 
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 
OYL CT  CZ  SING N N 1  
OYL CZ  NE2 SING N N 2  
OYL CD2 NE2 SING Y N 3  
OYL CD2 CG  DOUB Y N 4  
OYL NE2 CE1 SING Y N 5  
OYL CG  CB  SING N N 6  
OYL CG  ND1 SING Y N 7  
OYL CB  CA  SING N N 8  
OYL CE1 ND1 DOUB Y N 9  
OYL N   CA  SING N N 10 
OYL CA  C   SING N N 11 
OYL C   O   DOUB N N 12 
OYL C   OXT SING N N 13 
OYL CA  HA  SING N N 14 
OYL N   H2  SING N N 15 
OYL N   H   SING N N 16 
OYL CB  H5  SING N N 17 
OYL CB  H6  SING N N 18 
OYL CD2 H7  SING N N 19 
OYL CE1 H8  SING N N 20 
OYL CZ  H9  SING N N 21 
OYL CZ  H10 SING N N 22 
OYL CT  H11 SING N N 23 
OYL CT  H12 SING N N 24 
OYL CT  H13 SING N N 25 
OYL OXT HXT SING N N 26 
# 
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 
OYL SMILES           ACDLabs              12.01 "O=C(O)C(N)Cc1ncn(c1)CC"                                                                       
OYL InChI            InChI                1.03  "InChI=1S/C8H13N3O2/c1-2-11-4-6(10-5-11)3-7(9)8(12)13/h4-5,7H,2-3,9H2,1H3,(H,12,13)/t7-/m0/s1" 
OYL InChIKey         InChI                1.03  OAXCYOTUTFGTCJ-ZETCQYMHSA-N                                                                    
OYL SMILES_CANONICAL CACTVS               3.385 "CCn1cnc(C[C@H](N)C(O)=O)c1"                                                                   
OYL SMILES           CACTVS               3.385 "CCn1cnc(C[CH](N)C(O)=O)c1"                                                                    
OYL SMILES_CANONICAL "OpenEye OEToolkits" 1.9.2 "CCn1cc(nc1)C[C@@H](C(=O)O)N"                                                                  
OYL SMILES           "OpenEye OEToolkits" 1.9.2 "CCn1cc(nc1)CC(C(=O)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 
OYL "SYSTEMATIC NAME" ACDLabs              12.01 1-ethyl-L-histidine                                    
OYL "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.9.2 "(2S)-2-azanyl-3-(1-ethylimidazol-4-yl)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 
OYL "Create component"  2014-02-28 RCSB 
OYL "Initial release"   2014-06-25 RCSB 
OYL "Modify descriptor" 2014-09-05 RCSB 
OYL "Modify backbone"   2023-11-03 PDBE 
OYL "Modify PCM"        2024-09-27 PDBE 
# 
_pdbx_chem_comp_pcm.pcm_id                             1 
_pdbx_chem_comp_pcm.comp_id                            OYL 
_pdbx_chem_comp_pcm.modified_residue_id                HIS 
_pdbx_chem_comp_pcm.type                               Ethylation 
_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      ? 
# 
