data_CIR
# 
_chem_comp.id                                    CIR 
_chem_comp.name                                  CITRULLINE 
_chem_comp.type                                  "L-PEPTIDE LINKING" 
_chem_comp.pdbx_type                             ATOMP 
_chem_comp.formula                               "C6 H13 N3 O3" 
_chem_comp.mon_nstd_parent_comp_id               ARG 
_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                        175.186 
_chem_comp.one_letter_code                       R 
_chem_comp.three_letter_code                     CIR 
_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        1KOD 
_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 
CIR C    C1   C 0 1 N N N Y N Y 1.787  4.103  36.211 3.505  0.297  -0.037 C1   CIR 1  
CIR O    O1   O 0 1 N N N Y N Y 1.108  3.115  36.448 4.165  -0.036 0.919  O1   CIR 2  
CIR OXT  O2   O 0 1 N Y N Y N Y 2.914  4.278  36.657 3.886  1.346  -0.783 O2   CIR 3  
CIR CA   C2   C 0 1 N N S Y N N 1.187  5.188  35.295 2.258  -0.469 -0.396 C2   CIR 4  
CIR N    N2   N 0 1 N N N Y Y N 1.457  6.536  35.882 2.308  -1.801 0.221  N2   CIR 5  
CIR C3   C3   C 0 1 N N N N N N 1.802  5.110  33.878 1.030  0.286  0.119  C3   CIR 6  
CIR C4   C4   C 0 1 N N N N N N 2.366  3.720  33.614 -0.240 -0.426 -0.352 C4   CIR 7  
CIR C5   C5   C 0 1 N N N N N N 1.224  2.732  33.387 -1.467 0.329  0.162  C5   CIR 8  
CIR N6   N6   N 0 1 N N N N N N 1.736  1.341  33.591 -2.684 -0.352 -0.289 N6   CIR 9  
CIR C7   C7   C 0 1 N N N N N N 0.948  0.312  33.429 -3.894 0.137  0.047  C7   CIR 10 
CIR O7   O7   O 0 1 N N N N N N 0.826  -0.531 34.315 -3.976 1.143  0.724  O7   CIR 11 
CIR N8   N8   N 0 1 N N N N N N 0.295  0.166  32.313 -5.012 -0.490 -0.368 N8   CIR 12 
CIR HXT  HO2  H 0 1 N Y N Y N Y 3.159  3.538  37.200 4.695  1.804  -0.516 HO2  CIR 13 
CIR HA   H2   H 0 1 N N N Y N N 0.102  5.023  35.216 2.194  -0.572 -1.479 H2   CIR 14 
CIR H2   HN21 H 0 0 N Y N Y Y N 1.069  7.242  35.290 2.367  -1.733 1.226  HN21 CIR 15 
CIR H    HN22 H 0 0 N N N Y Y N 1.039  6.595  36.788 1.513  -2.358 -0.057 HN22 CIR 16 
CIR H31  H31  H 0 1 N N N N N N 1.021  5.329  33.134 1.050  0.311  1.208  H31  CIR 17 
CIR H32  H32  H 0 1 N N N N N N 2.613  5.849  33.797 1.041  1.304  -0.269 H32  CIR 18 
CIR H41  H41  H 0 1 N N N N N N 3.005  3.750  32.719 -0.259 -0.452 -1.442 H41  CIR 19 
CIR H42  H42  H 0 1 N N N N N N 2.960  3.397  34.481 -0.251 -1.444 0.035  H42  CIR 20 
CIR H51  H51  H 0 1 N N N N N N 0.412  2.935  34.101 -1.448 0.354  1.251  H51  CIR 21 
CIR H52  H52  H 0 1 N N N N N N 0.842  2.838  32.361 -1.457 1.347  -0.226 H52  CIR 22 
CIR HN6  HN6  H 0 1 N N N N N N 2.690  1.198  33.854 -2.618 -1.156 -0.829 HN6  CIR 23 
CIR HN81 HN81 H 0 0 N N N N N N -0.300 -0.627 32.182 -4.947 -1.293 -0.908 HN81 CIR 24 
CIR HN82 HN82 H 0 0 N Y N N N N 0.388  0.847  31.586 -5.884 -0.138 -0.126 HN82 CIR 25 
# 
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 
CIR C   O    DOUB N N 1  
CIR C   OXT  SING N N 2  
CIR C   CA   SING N N 3  
CIR OXT HXT  SING N N 4  
CIR CA  N    SING N N 5  
CIR CA  C3   SING N N 6  
CIR CA  HA   SING N N 7  
CIR N   H2   SING N N 8  
CIR N   H    SING N N 9  
CIR C3  C4   SING N N 10 
CIR C3  H31  SING N N 11 
CIR C3  H32  SING N N 12 
CIR C4  C5   SING N N 13 
CIR C4  H41  SING N N 14 
CIR C4  H42  SING N N 15 
CIR C5  N6   SING N N 16 
CIR C5  H51  SING N N 17 
CIR C5  H52  SING N N 18 
CIR N6  C7   SING N N 19 
CIR N6  HN6  SING N N 20 
CIR C7  O7   DOUB N N 21 
CIR C7  N8   SING N N 22 
CIR N8  HN81 SING N N 23 
CIR N8  HN82 SING N N 24 
# 
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 
CIR SMILES           ACDLabs              12.01 "O=C(O)C(N)CCCNC(=O)N"                                                                      
CIR SMILES_CANONICAL CACTVS               3.370 "N[C@@H](CCCNC(N)=O)C(O)=O"                                                                 
CIR SMILES           CACTVS               3.370 "N[CH](CCCNC(N)=O)C(O)=O"                                                                   
CIR SMILES_CANONICAL "OpenEye OEToolkits" 1.7.0 "C(C[C@@H](C(=O)O)N)CNC(=O)N"                                                               
CIR SMILES           "OpenEye OEToolkits" 1.7.0 "C(CC(C(=O)O)N)CNC(=O)N"                                                                    
CIR InChI            InChI                1.03  "InChI=1S/C6H13N3O3/c7-4(5(10)11)2-1-3-9-6(8)12/h4H,1-3,7H2,(H,10,11)(H3,8,9,12)/t4-/m0/s1" 
CIR InChIKey         InChI                1.03  RHGKLRLOHDJJDR-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 
CIR "SYSTEMATIC NAME" ACDLabs              12.01 N~5~-carbamoyl-L-ornithine                            
CIR "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.7.0 "(2S)-5-(aminocarbonylamino)-2-azanyl-pentanoic 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 
CIR "Create component"  1999-07-08 RCSB 
CIR "Modify descriptor" 2011-06-04 RCSB 
CIR "Modify backbone"   2023-11-03 PDBE 
CIR "Modify PCM"        2024-09-27 PDBE 
# 
loop_
_pdbx_chem_comp_pcm.pcm_id 
_pdbx_chem_comp_pcm.comp_id 
_pdbx_chem_comp_pcm.modified_residue_id 
_pdbx_chem_comp_pcm.type 
_pdbx_chem_comp_pcm.category 
_pdbx_chem_comp_pcm.position 
_pdbx_chem_comp_pcm.polypeptide_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 
1 CIR ARG Citrullination "Named protein modification"     "Amino-acid side chain" "Any position" ?  ?  PTM-0092 ? 
2 CIR CYS None           "Covalent chemical modification" "Amino-acid side chain" "Any position" C7 SG ?        ? 
3 CIR CYS None           "Covalent chemical modification" "Amino-acid side chain" "Any position" O7 SG ?        ? 
# 
