data_OBF
# 
_chem_comp.id                                    OBF 
_chem_comp.name                                  "(2S)-2-amino-4,4-difluorobutanoic acid" 
_chem_comp.type                                  "L-peptide linking" 
_chem_comp.pdbx_type                             ATOMP 
_chem_comp.formula                               "C4 H7 F2 N O2" 
_chem_comp.mon_nstd_parent_comp_id               ? 
_chem_comp.pdbx_synonyms                         ? 
_chem_comp.pdbx_formal_charge                    0 
_chem_comp.pdbx_initial_date                     2008-03-14 
_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                        139.101 
_chem_comp.one_letter_code                       X 
_chem_comp.three_letter_code                     OBF 
_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        2K1Q 
_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 
OBF N   N   N 0 1 N N N Y Y N 9.243  -2.752 -2.698 -0.388 -1.651 0.241  N   OBF 1  
OBF CA  CA  C 0 1 N N S Y N N 9.559  -1.299 -2.843 -0.604 -0.218 0.478  CA  OBF 2  
OBF CB  CB  C 0 1 N N N N N N 9.789  -1.089 -4.339 0.449  0.590  -0.283 CB  OBF 3  
OBF CG  CG  C 0 1 N N N N N N 11.214 -1.511 -4.699 1.835  0.289  0.292  CG  OBF 4  
OBF FG1 FG1 F 0 1 N N N N N N 11.594 -1.013 -5.894 2.156  -1.052 0.058  FG1 OBF 5  
OBF FG2 FG2 F 0 1 N N N N N N 11.336 -2.855 -4.750 2.784  1.111  -0.326 FG2 OBF 6  
OBF C   C   C 0 1 N N N Y N Y 8.387  -0.445 -2.352 -1.979 0.169  -0.005 C   OBF 7  
OBF O   O   O 0 1 N N N Y N Y 8.156  0.646  -2.840 -2.559 -0.530 -0.801 O   OBF 8  
OBF H   HN  H 0 1 N N N Y Y N 9.971  -3.201 -2.179 -1.031 -2.208 0.783  HN  OBF 9  
OBF HA  HA  H 0 1 N N N Y N N 10.436 -1.005 -2.248 -0.522 -0.009 1.544  HA  OBF 10 
OBF H1B H1B H 0 1 N N N N N N 9.071  -1.697 -4.909 0.426  0.315  -1.338 H1B OBF 11 
OBF H2B H2B H 0 1 N N N N N N 9.647  -0.027 -4.587 0.236  1.654  -0.180 H2B OBF 12 
OBF HG  HG  H 0 1 N N N N N N 11.860 -1.107 -3.905 1.832  0.480  1.365  HG  OBF 13 
OBF H2  HNA H 0 1 N Y N Y Y N 9.172  -3.170 -3.604 -0.459 -1.870 -0.742 HNA OBF 14 
OBF OXT OXT O 0 1 N Y N Y N Y 7.549  -0.937 -1.303 -2.558 1.291  0.450  OXT OBF 15 
OBF HXT HXT H 0 1 N Y N Y N Y 6.872  -0.298 -1.112 -3.440 1.498  0.112  HXT OBF 16 
# 
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 
OBF N   H2  SING N N 1  
OBF CA  N   SING N N 2  
OBF CA  C   SING N N 3  
OBF CA  HA  SING N N 4  
OBF CB  CA  SING N N 5  
OBF CG  CB  SING N N 6  
OBF CG  HG  SING N N 7  
OBF FG1 CG  SING N N 8  
OBF FG2 CG  SING N N 9  
OBF C   OXT SING N N 10 
OBF O   C   DOUB N N 11 
OBF H   N   SING N N 12 
OBF H1B CB  SING N N 13 
OBF H2B CB  SING N N 14 
OBF OXT HXT SING N N 15 
# 
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 
OBF SMILES           ACDLabs              10.04 "FC(F)CC(N)C(=O)O"                                                    
OBF SMILES_CANONICAL CACTVS               3.341 "N[C@@H](CC(F)F)C(O)=O"                                               
OBF SMILES           CACTVS               3.341 "N[CH](CC(F)F)C(O)=O"                                                 
OBF SMILES_CANONICAL "OpenEye OEToolkits" 1.5.0 "C([C@@H](C(=O)O)N)C(F)F"                                             
OBF SMILES           "OpenEye OEToolkits" 1.5.0 "C(C(C(=O)O)N)C(F)F"                                                  
OBF InChI            InChI                1.03  "InChI=1S/C4H7F2NO2/c5-3(6)1-2(7)4(8)9/h2-3H,1,7H2,(H,8,9)/t2-/m0/s1" 
OBF InChIKey         InChI                1.03  VIUCNIMDPZQXAD-REOHCLBHSA-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 
OBF "SYSTEMATIC NAME" ACDLabs              10.04 "(2S)-2-amino-4,4-difluorobutanoic acid"  
OBF "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.5.0 "(2S)-2-amino-4,4-difluoro-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 
OBF "Create component"  2008-03-14 RCSB 
OBF "Modify descriptor" 2011-06-04 RCSB 
OBF "Modify backbone"   2023-11-03 PDBE 
OBF "Modify PCM"        2024-09-27 PDBE 
# 
_pdbx_chem_comp_pcm.pcm_id                             1 
_pdbx_chem_comp_pcm.comp_id                            OBF 
_pdbx_chem_comp_pcm.modified_residue_id                ? 
_pdbx_chem_comp_pcm.type                               None 
_pdbx_chem_comp_pcm.category                           "Non-standard residue" 
_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      ? 
# 
