data_AIB
# 
_chem_comp.id                                    AIB 
_chem_comp.name                                  "ALPHA-AMINOISOBUTYRIC ACID" 
_chem_comp.type                                  "L-PEPTIDE LINKING" 
_chem_comp.pdbx_type                             ATOMP 
_chem_comp.formula                               "C4 H9 N O2" 
_chem_comp.mon_nstd_parent_comp_id               ALA 
_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                        103.120 
_chem_comp.one_letter_code                       A 
_chem_comp.three_letter_code                     AIB 
_chem_comp.pdbx_model_coordinates_details        ? 
_chem_comp.pdbx_model_coordinates_missing_flag   N 
_chem_comp.pdbx_ideal_coordinates_details        ? 
_chem_comp.pdbx_ideal_coordinates_missing_flag   N 
_chem_comp.pdbx_model_coordinates_db_code        1AMT 
_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 
AIB N    N    N 0 1 N N N Y Y N 48.065 2.462 -1.964 -1.298 0.711  0.969  N    AIB 1  
AIB CA   CA   C 0 1 N N N Y N N 46.920 3.266 -2.573 -0.053 0.002  0.646  CA   AIB 2  
AIB C    C    C 0 1 N N N Y N Y 45.865 2.301 -3.116 0.144  -0.009 -0.847 C    AIB 3  
AIB O    O    O 0 1 N N N Y N Y 44.700 2.587 -2.746 1.261  -0.025 -1.308 O    AIB 4  
AIB OXT  OXT  O 0 1 N Y N Y N Y 46.136 1.294 -3.808 -0.919 -0.003 -1.665 OXT  AIB 5  
AIB CB1  CB1  C 0 1 N N N N N N 47.457 4.132 -3.656 1.126  0.715  1.311  CB1  AIB 6  
AIB CB2  CB2  C 0 1 N N N N N N 46.329 4.215 -1.516 -0.136 -1.435 1.161  CB2  AIB 7  
AIB H    H    H 0 1 N N N Y Y N 48.768 3.105 -1.601 -1.199 1.649  0.612  H    AIB 8  
AIB H2   H2   H 0 1 N Y N Y Y N 48.457 1.787 -2.620 -2.030 0.272  0.430  H2   AIB 9  
AIB HXT  HO2  H 0 1 N Y N Y N Y 45.480 0.694 -4.145 -0.792 -0.010 -2.624 HO2  AIB 10 
AIB HB11 HB11 H 0 0 N N N N N N 46.620 4.719 -4.101 0.983  0.723  2.391  HB11 AIB 11 
AIB HB12 HB12 H 0 0 N N N N N N 48.291 4.782 -3.304 2.050  0.189  1.071  HB12 AIB 12 
AIB HB13 HB13 H 0 0 N N N N N N 48.022 3.551 -4.422 1.185  1.739  0.944  HB13 AIB 13 
AIB HB21 HB21 H 0 0 N N N N N N 45.492 4.802 -1.961 0.787  -1.961 0.921  HB21 AIB 14 
AIB HB22 HB22 H 0 0 N N N N N N 46.015 3.672 -0.593 -0.279 -1.426 2.242  HB22 AIB 15 
AIB HB23 HB23 H 0 0 N N N N N N 47.106 4.871 -1.060 -0.976 -1.943 0.687  HB23 AIB 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 
AIB N   CA   SING N N 1  
AIB N   H    SING N N 2  
AIB N   H2   SING N N 3  
AIB CA  C    SING N N 4  
AIB CA  CB1  SING N N 5  
AIB CA  CB2  SING N N 6  
AIB C   O    DOUB N N 7  
AIB C   OXT  SING N N 8  
AIB OXT HXT  SING N N 9  
AIB CB1 HB11 SING N N 10 
AIB CB1 HB12 SING N N 11 
AIB CB1 HB13 SING N N 12 
AIB CB2 HB21 SING N N 13 
AIB CB2 HB22 SING N N 14 
AIB CB2 HB23 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 
AIB SMILES           ACDLabs              10.04 "O=C(O)C(N)(C)C"                                     
AIB SMILES_CANONICAL CACTVS               3.341 "CC(C)(N)C(O)=O"                                     
AIB SMILES           CACTVS               3.341 "CC(C)(N)C(O)=O"                                     
AIB SMILES_CANONICAL "OpenEye OEToolkits" 1.5.0 "CC(C)(C(=O)O)N"                                     
AIB SMILES           "OpenEye OEToolkits" 1.5.0 "CC(C)(C(=O)O)N"                                     
AIB InChI            InChI                1.03  "InChI=1S/C4H9NO2/c1-4(2,5)3(6)7/h5H2,1-2H3,(H,6,7)" 
AIB InChIKey         InChI                1.03  FUOOLUPWFVMBKG-UHFFFAOYSA-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 
AIB "SYSTEMATIC NAME" ACDLabs              10.04 2-methyl-L-alanine                
AIB "SYSTEMATIC NAME" "OpenEye OEToolkits" 1.5.0 "2-amino-2-methyl-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 
AIB "Create component"  1999-07-08 RCSB 
AIB "Modify descriptor" 2011-06-04 RCSB 
AIB "Modify backbone"   2023-11-03 PDBE 
AIB "Modify PCM"        2024-09-27 PDBE 
# 
_pdbx_chem_comp_pcm.pcm_id                             1 
_pdbx_chem_comp_pcm.comp_id                            AIB 
_pdbx_chem_comp_pcm.modified_residue_id                ALA 
_pdbx_chem_comp_pcm.type                               Methylation 
_pdbx_chem_comp_pcm.category                           "Named protein modification" 
_pdbx_chem_comp_pcm.position                           "Amino-acid backbone" 
_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      ? 
# 
