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 2023-11-03 _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 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 # 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 #