data_UN2 # _chem_comp.id UN2 _chem_comp.name "2-AMINO-4,4-DIHYDROXYBUTANOIC ACID" _chem_comp.type "L-PEPTIDE LINKING" _chem_comp.pdbx_type ATOMP _chem_comp.formula "C4 H9 N O4" _chem_comp.mon_nstd_parent_comp_id ? _chem_comp.pdbx_synonyms ? _chem_comp.pdbx_formal_charge 0 _chem_comp.pdbx_initial_date 2002-06-19 _chem_comp.pdbx_modified_date 2011-06-04 _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 135.119 _chem_comp.one_letter_code X _chem_comp.three_letter_code UN2 _chem_comp.pdbx_model_coordinates_details ? _chem_comp.pdbx_model_coordinates_missing_flag Y _chem_comp.pdbx_ideal_coordinates_details ? _chem_comp.pdbx_ideal_coordinates_missing_flag N _chem_comp.pdbx_model_coordinates_db_code 1H0G _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.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 UN2 N N N 0 1 N N N 48.685 75.111 53.242 1.905 -1.549 -0.347 N UN2 1 UN2 CA CA C 0 1 N N S 47.959 74.835 51.978 1.658 -0.974 0.978 CA UN2 2 UN2 C C C 0 1 N N N 46.520 75.274 52.115 2.967 -1.065 1.742 C UN2 3 UN2 O O O 0 1 N N N 46.168 76.451 52.155 3.986 -1.603 1.329 O UN2 4 UN2 CB CB C 0 1 N N N 47.819 73.318 51.707 0.539 -1.746 1.689 CB UN2 5 UN2 CG CG C 0 1 N N N 46.397 72.951 52.203 -0.829 -1.636 1.010 CG UN2 6 UN2 OD1 OD1 O 0 1 N N N 46.485 72.410 53.524 -1.751 -2.417 1.761 OD1 UN2 7 UN2 OD2 OD2 O 0 1 N N N ? ? ? -1.231 -0.274 0.986 OD2 UN2 8 UN2 OXT OXT O 0 1 N Y N 45.688 74.258 52.222 2.901 -0.450 2.951 OXT UN2 9 UN2 HN1 1HN H 0 1 N N N 48.794 75.659 54.095 2.052 -0.922 -1.105 HN1 UN2 10 UN2 HN2 2HN H 0 1 N N N 49.515 75.453 53.726 1.715 -2.517 -0.475 HN2 UN2 11 UN2 HA HA H 0 1 N N N 48.450 75.348 51.118 1.390 0.077 0.828 HA UN2 12 UN2 HBC1 1HBC H 0 0 N N N 48.629 72.701 52.162 0.801 -2.809 1.782 HBC1 UN2 13 UN2 HBC2 2HBC H 0 0 N N N 48.017 73.028 50.649 0.442 -1.368 2.717 HBC2 UN2 14 UN2 HGC1 1HGC H 0 0 N N N 45.825 73.903 52.107 -0.786 -2.026 -0.012 HGC1 UN2 15 UN2 HD1 HD1 H 0 1 N N N 45.613 72.185 53.828 -2.480 -2.653 1.162 HD1 UN2 16 UN2 HDT HDT H 0 1 N N N -0.871 -0.225 0.304 -1.867 -0.176 0.258 HDT UN2 17 UN2 HXT HXT H 0 1 N Y N 44.783 74.534 52.308 3.729 -0.464 3.477 HXT UN2 18 # 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 UN2 N CA SING N N 1 UN2 N HN1 SING N N 2 UN2 N HN2 SING N N 3 UN2 CA C SING N N 4 UN2 CA CB SING N N 5 UN2 CA HA SING N N 6 UN2 C O DOUB N N 7 UN2 C OXT SING N N 8 UN2 CB CG SING N N 9 UN2 CB HBC1 SING N N 10 UN2 CB HBC2 SING N N 11 UN2 CG OD1 SING N N 12 UN2 CG OD2 SING N N 13 UN2 CG HGC1 SING N N 14 UN2 OD1 HD1 SING N N 15 UN2 OD2 HDT SING N N 16 UN2 OXT HXT SING N N 17 # 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 UN2 SMILES ACDLabs 10.04 "O=C(O)C(N)CC(O)O" UN2 SMILES_CANONICAL CACTVS 3.341 "N[C@@H](CC(O)O)C(O)=O" UN2 SMILES CACTVS 3.341 "N[CH](CC(O)O)C(O)=O" UN2 SMILES_CANONICAL "OpenEye OEToolkits" 1.5.0 "C([C@@H](C(=O)O)N)C(O)O" UN2 SMILES "OpenEye OEToolkits" 1.5.0 "C(C(C(=O)O)N)C(O)O" UN2 InChI InChI 1.03 "InChI=1S/C4H9NO4/c5-2(4(8)9)1-3(6)7/h2-3,6-7H,1,5H2,(H,8,9)/t2-/m0/s1" UN2 InChIKey InChI 1.03 NVZWSDYYWDDQAN-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 UN2 "SYSTEMATIC NAME" ACDLabs 10.04 4-hydroxy-L-homoserine UN2 "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.5.0 "(2S)-2-amino-4,4-dihydroxy-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 UN2 "Create component" 2002-06-19 RCSB UN2 "Modify descriptor" 2011-06-04 RCSB #