data_A1AS0
# 
_chem_comp.id                                    A1AS0 
_chem_comp.name                                  5-selanyl-L-histidine 
_chem_comp.type                                  "L-peptide linking" 
_chem_comp.pdbx_type                             ATOMP 
_chem_comp.formula                               "C6 H9 N3 O2 Se" 
_chem_comp.mon_nstd_parent_comp_id               HIS 
_chem_comp.pdbx_synonyms                         ? 
_chem_comp.pdbx_formal_charge                    0 
_chem_comp.pdbx_initial_date                     2024-05-23 
_chem_comp.pdbx_modified_date                    2025-01-03 
_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                        234.115 
_chem_comp.one_letter_code                       ? 
_chem_comp.three_letter_code                     A1AS0 
_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        9BXK 
_chem_comp.pdbx_subcomponent_list                ? 
_chem_comp.pdbx_processing_site                  RCSB 
_chem_comp.pdbx_pcm                              ? 
# 
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 
A1AS0 N   N1  N  0 1 N N N Y Y N -18.972 -5.740 3.377 1.133  0.804  1.158  N   A1AS0 1  
A1AS0 CA  C1  C  0 1 N N S N Y N -18.783 -7.213 3.446 1.817  -0.299 0.468  CA  A1AS0 2  
A1AS0 C   C2  C  0 1 N N N N Y Y -20.100 -7.877 3.842 3.186  0.154  0.032  C   A1AS0 3  
A1AS0 O   O1  O  0 1 N N N N Y Y -20.161 -9.127 3.755 3.430  1.334  -0.066 O   A1AS0 4  
A1AS0 CB  C3  C  0 1 N N N N N N -17.698 -7.597 4.463 1.003  -0.716 -0.758 CB  A1AS0 5  
A1AS0 CG  C4  C  0 1 Y N N N N N -18.152 -7.627 5.892 -0.320 -1.283 -0.314 CG  A1AS0 6  
A1AS0 ND1 N2  N  0 1 Y N N N N N -18.542 -8.766 6.554 -0.617 -2.605 -0.119 ND1 A1AS0 7  
A1AS0 CD2 C5  C  0 1 Y N N N N N -18.225 -6.587 6.811 -1.437 -0.587 -0.027 CD2 A1AS0 8  
A1AS0 CE1 C6  C  0 1 Y N N N N N -18.853 -8.408 7.816 -1.907 -2.671 0.276  CE1 A1AS0 9  
A1AS0 NE2 N3  N  0 1 Y N N N N N -18.655 -7.073 7.970 -2.391 -1.460 0.329  NE2 A1AS0 10 
A1AS0 SE2 SE1 SE 0 0 N N N N N N -17.816 -4.747 6.529 -1.633 1.361  -0.113 SE2 A1AS0 11 
A1AS0 OXT O2  O  0 1 N Y N N Y Y -20.998 -7.124 4.260 4.136  -0.753 -0.248 OXT A1AS0 12 
A1AS0 H   H1  H  0 1 N N N Y Y N -18.110 -5.305 3.118 1.031  1.603  0.550  H1  A1AS0 13 
A1AS0 H2  H2  H  0 1 N N N Y Y N -19.672 -5.525 2.696 0.238  0.506  1.516  H2  A1AS0 14 
A1AS0 HA  H4  H  0 1 N N N N Y N -18.483 -7.587 2.456 1.913  -1.147 1.146  H4  A1AS0 15 
A1AS0 HB2 H5  H  0 1 N N N N N N -17.325 -8.598 4.202 0.831  0.154  -1.393 H5  A1AS0 16 
A1AS0 HB3 H6  H  0 1 N N N N N N -16.879 -6.867 4.380 1.553  -1.472 -1.319 H6  A1AS0 17 
A1AS0 HD1 H7  H  0 1 N N N N N N -18.587 -9.689 6.171 -0.014 -3.355 -0.242 H7  A1AS0 18 
A1AS0 HE1 H8  H  0 1 N N N N N N -19.205 -9.079 8.586 -2.448 -3.576 0.511  H8  A1AS0 19 
A1AS0 H10 H10 H  0 1 N N N N N N -18.050 -4.001 7.762 -2.107 1.548  -1.587 H10 A1AS0 20 
A1AS0 HXT H11 H  0 1 N N N N Y Y -21.755 -7.641 4.510 4.998  -0.414 -0.523 H11 A1AS0 21 
# 
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 
A1AS0 N   CA  SING N N 1  
A1AS0 CA  C   SING N N 2  
A1AS0 CA  CB  SING N N 3  
A1AS0 O   C   DOUB N N 4  
A1AS0 C   OXT SING N N 5  
A1AS0 CB  CG  SING N N 6  
A1AS0 CG  ND1 SING Y N 7  
A1AS0 CG  CD2 DOUB Y N 8  
A1AS0 SE2 CD2 SING N N 9  
A1AS0 ND1 CE1 SING Y N 10 
A1AS0 CD2 NE2 SING Y N 11 
A1AS0 CE1 NE2 DOUB Y N 12 
A1AS0 N   H   SING N N 13 
A1AS0 N   H2  SING N N 14 
A1AS0 CA  HA  SING N N 15 
A1AS0 CB  HB2 SING N N 16 
A1AS0 CB  HB3 SING N N 17 
A1AS0 ND1 HD1 SING N N 18 
A1AS0 CE1 HE1 SING N N 19 
A1AS0 SE2 H10 SING N N 20 
A1AS0 OXT HXT SING N N 21 
# 
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 
A1AS0 SMILES           ACDLabs              12.01 "NC(Cc1[NH]cnc1[SeH])C(=O)O"                                                                  
A1AS0 InChI            InChI                1.06  "InChI=1S/C6H9N3O2Se/c7-3(6(10)11)1-4-5(12)9-2-8-4/h2-3,12H,1,7H2,(H,8,9)(H,10,11)/t3-/m0/s1" 
A1AS0 InChIKey         InChI                1.06  ANMUHIJZJXWBFT-VKHMYHEASA-N                                                                   
A1AS0 SMILES_CANONICAL CACTVS               3.385 "N[C@@H](Cc1[nH]cnc1[SeH])C(O)=O"                                                             
A1AS0 SMILES           CACTVS               3.385 "N[CH](Cc1[nH]cnc1[SeH])C(O)=O"                                                               
A1AS0 SMILES_CANONICAL "OpenEye OEToolkits" 2.0.7 "c1[nH]c(c(n1)[SeH])C[C@@H](C(=O)O)N"                                                         
A1AS0 SMILES           "OpenEye OEToolkits" 2.0.7 "c1[nH]c(c(n1)[SeH])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 
A1AS0 "SYSTEMATIC NAME" ACDLabs              12.01 5-selanyl-L-histidine                                              
A1AS0 "SYSTEMATIC NAME" "OpenEye OEToolkits" 2.0.7 "(2~{S})-2-azanyl-3-(4-selanyl-1~{H}-imidazol-5-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 
A1AS0 "Create component" 2024-05-23 RCSB 
A1AS0 "Initial release"  2025-01-08 RCSB 
# 
