data_SIA
# 
_chem_comp.id                                    SIA 
_chem_comp.name                                  "N-acetyl-alpha-neuraminic acid" 
_chem_comp.type                                  "D-saccharide, alpha linking" 
_chem_comp.pdbx_type                             ATOMS 
_chem_comp.formula                               "C11 H19 N O9" 
_chem_comp.mon_nstd_parent_comp_id               ? 
_chem_comp.pdbx_synonyms                         "N-acetylneuraminic acid; sialic acid; alpha-sialic acid; O-SIALIC ACID" 
_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                         NAN 
_chem_comp.formula_weight                        309.270 
_chem_comp.one_letter_code                       ? 
_chem_comp.three_letter_code                     SIA 
_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        ? 
_chem_comp.pdbx_subcomponent_list                ? 
_chem_comp.pdbx_processing_site                  EBI 
_chem_comp.pdbx_pcm                              Y 
# 
loop_
_pdbx_chem_comp_synonyms.ordinal 
_pdbx_chem_comp_synonyms.comp_id 
_pdbx_chem_comp_synonyms.name 
_pdbx_chem_comp_synonyms.provenance 
_pdbx_chem_comp_synonyms.type 
1 SIA "N-acetylneuraminic acid" PDB ? 
2 SIA "sialic acid"             PDB ? 
3 SIA "alpha-sialic acid"       PDB ? 
4 SIA "O-SIALIC ACID"           PDB ? 
# 
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 
SIA C1   C1   C 0 1 N N N N N N -2.196 58.872 -5.981  -2.502 -0.832 0.174  C1   SIA 1  
SIA C2   C2   C 0 1 N N R N N N -1.870 58.021 -7.211  -2.171 0.628  0.342  C2   SIA 2  
SIA C3   C3   C 0 1 N N N N N N -0.844 56.899 -7.306  -1.789 0.898  1.800  C3   SIA 3  
SIA C4   C4   C 0 1 N N S N N N -1.157 55.904 -8.413  -0.586 0.023  2.171  C4   SIA 4  
SIA C5   C5   C 0 1 N N R N N N -2.015 56.516 -9.517  0.529  0.264  1.148  C5   SIA 5  
SIA C6   C6   C 0 1 N N R N N N -3.352 56.956 -8.912  -0.026 0.043  -0.259 C6   SIA 6  
SIA C7   C7   C 0 1 N N R N N N -4.224 57.698 -9.942  1.088  0.251  -1.286 C7   SIA 7  
SIA C8   C8   C 0 1 N N R N N N -5.571 58.131 -9.360  0.535  0.021  -2.694 C8   SIA 8  
SIA C9   C9   C 0 1 N N N N N N -6.601 58.674 -10.381 1.650  0.229  -3.721 C9   SIA 9  
SIA C10  C10  C 0 1 N N N N N N -1.897 55.374 -11.759 2.632  -0.329 2.226  C10  SIA 10 
SIA C11  C11  C 0 1 N N N N N N -2.200 54.057 -12.454 3.763  -1.292 2.478  C11  SIA 11 
SIA N5   N5   N 0 1 N N N N N N -2.202 55.444 -10.478 1.629  -0.671 1.394  N5   SIA 12 
SIA O1A  O1A  O 0 1 N N N N N N -1.289 58.815 -5.130  -2.191 -1.408 -0.841 O1A  SIA 13 
SIA O1B  O1B  O 0 1 N N N N N N -3.210 59.504 -5.631  -3.141 -1.493 1.152  O1B  SIA 14 
SIA O2   O2   O 0 1 N Y N N N N -1.768 59.214 -7.992  -3.312 1.416  -0.003 O2   SIA 15 
SIA O4   O4   O 0 1 N N N N N N 0.072  55.523 -8.986  -0.123 0.370  3.478  O4   SIA 16 
SIA O6   O6   O 0 1 N N N N N N -3.149 57.908 -7.847  -1.082 0.968  -0.513 O6   SIA 17 
SIA O7   O7   O 0 1 N N N N N N -3.594 58.883 -10.402 1.588  1.586  -1.183 O7   SIA 18 
SIA O8   O8   O 0 1 N N N N N N -6.119 56.946 -8.828  0.035  -1.313 -2.797 O8   SIA 19 
SIA O9   O9   O 0 1 N N N N N N -6.931 57.687 -11.346 1.133  0.014  -5.035 O9   SIA 20 
SIA O10  O10  O 0 1 N N N N N N -1.423 56.357 -12.331 2.624  0.753  2.772  O10  SIA 21 
SIA H32  H31  H 0 1 N N N N N N -0.702 56.484 -6.300  -2.631 0.655  2.448  H32  SIA 22 
SIA H31  H32  H 0 1 N N N N N N 0.120  57.408 -7.182  -1.526 1.949  1.919  H31  SIA 23 
SIA H4   H4   H 0 1 N N N N N N -1.651 55.060 -7.897  -0.878 -1.026 2.153  H4   SIA 24 
SIA H5   H5   H 0 1 N N N N N N -1.506 57.375 -9.979  0.893  1.287  1.240  H5   SIA 25 
SIA H6   H6   H 0 1 N N N N N N -3.850 56.075 -8.492  -0.408 -0.973 -0.341 H6   SIA 26 
SIA H7   H7   H 0 1 N N N N N N -4.339 57.176 -10.907 1.896  -0.454 -1.093 H7   SIA 27 
SIA H8   H8   H 0 1 N N N N N N -5.473 58.871 -8.553  -0.272 0.728  -2.887 H8   SIA 28 
SIA H92  H91  H 0 1 N N N N N N -6.054 59.459 -10.925 2.031  1.247  -3.642 H92  SIA 29 
SIA H91  H92  H 0 1 N N N N N N -7.587 59.029 -10.055 2.457  -0.476 -3.528 H91  SIA 30 
SIA H111 H111 H 0 0 N N N N N N -3.215 53.728 -12.207 4.474  -0.844 3.172  H111 SIA 31 
SIA H113 H112 H 0 0 N N N N N N -1.550 53.279 -12.033 3.368  -2.213 2.907  H113 SIA 32 
SIA H112 H113 H 0 0 N N N N N N -2.005 54.041 -13.531 4.266  -1.516 1.537  H112 SIA 33 
SIA HN5  HN5  H 0 1 N N N N N N -2.566 54.658 -10.003 1.635  -1.538 0.957  HN5  SIA 34 
SIA HO1B HOB1 H 0 0 N N N N N N -3.412 60.032 -4.867  -3.353 -2.430 1.044  HO1B SIA 35 
SIA HO2  HO2  H 0 1 N Y N N N N -0.905 59.113 -8.438  -3.519 1.217  -0.926 HO2  SIA 36 
SIA HO4  HO4  H 0 1 N Y N N N N 0.427  54.801 -8.430  -0.854 0.203  4.087  HO4  SIA 37 
SIA HO7  HO7  H 0 1 N Y N N N N -3.109 58.884 -9.548  0.844  2.177  -1.360 HO7  SIA 38 
SIA HO8  HO8  H 0 1 N Y N N N N -7.071 57.051 -8.962  0.779  -1.904 -2.620 HO8  SIA 39 
SIA HO9  HO9  H 0 1 N Y N N N N -6.783 56.885 -10.808 1.866  0.155  -5.650 HO9  SIA 40 
# 
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 
SIA C1  C2   SING N N 1  
SIA C1  O1A  DOUB N N 2  
SIA C1  O1B  SING N N 3  
SIA C2  C3   SING N N 4  
SIA C2  O2   SING N N 5  
SIA C2  O6   SING N N 6  
SIA C3  C4   SING N N 7  
SIA C3  H32  SING N N 8  
SIA C3  H31  SING N N 9  
SIA C4  C5   SING N N 10 
SIA C4  O4   SING N N 11 
SIA C4  H4   SING N N 12 
SIA C5  C6   SING N N 13 
SIA C5  N5   SING N N 14 
SIA C5  H5   SING N N 15 
SIA C6  C7   SING N N 16 
SIA C6  O6   SING N N 17 
SIA C6  H6   SING N N 18 
SIA C7  C8   SING N N 19 
SIA C7  O7   SING N N 20 
SIA C7  H7   SING N N 21 
SIA C8  C9   SING N N 22 
SIA C8  O8   SING N N 23 
SIA C8  H8   SING N N 24 
SIA C9  O9   SING N N 25 
SIA C9  H92  SING N N 26 
SIA C9  H91  SING N N 27 
SIA C10 C11  SING N N 28 
SIA C10 N5   SING N N 29 
SIA C10 O10  DOUB N N 30 
SIA C11 H111 SING N N 31 
SIA C11 H113 SING N N 32 
SIA C11 H112 SING N N 33 
SIA N5  HN5  SING N N 34 
SIA O1B HO1B SING N N 35 
SIA O2  HO2  SING N N 36 
SIA O4  HO4  SING N N 37 
SIA O7  HO7  SING N N 38 
SIA O8  HO8  SING N N 39 
SIA O9  HO9  SING N N 40 
# 
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 
SIA SMILES           ACDLabs              10.04 "O=C(O)C1(O)OC(C(O)C(O)CO)C(NC(=O)C)C(O)C1"                                                                                                            
SIA SMILES_CANONICAL CACTVS               3.341 "CC(=O)N[C@@H]1[C@@H](O)C[C@@](O)(O[C@H]1[C@H](O)[C@H](O)CO)C(O)=O"                                                                                    
SIA SMILES           CACTVS               3.341 "CC(=O)N[CH]1[CH](O)C[C](O)(O[CH]1[CH](O)[CH](O)CO)C(O)=O"                                                                                             
SIA SMILES_CANONICAL "OpenEye OEToolkits" 1.5.0 "CC(=O)N[C@@H]1[C@H](C[C@@](O[C@H]1[C@@H]([C@@H](CO)O)O)(C(=O)O)O)O"                                                                                   
SIA SMILES           "OpenEye OEToolkits" 1.5.0 "CC(=O)NC1C(CC(OC1C(C(CO)O)O)(C(=O)O)O)O"                                                                                                              
SIA InChI            InChI                1.03  "InChI=1S/C11H19NO9/c1-4(14)12-7-5(15)2-11(20,10(18)19)21-9(7)8(17)6(16)3-13/h5-9,13,15-17,20H,2-3H2,1H3,(H,12,14)(H,18,19)/t5-,6+,7+,8+,9+,11+/m0/s1" 
SIA InChIKey         InChI                1.03  SQVRNKJHWKZAKO-YRMXFSIDSA-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 
SIA "SYSTEMATIC NAME"                     ACDLabs              10.04 "5-(acetylamino)-3,5-dideoxy-D-glycero-alpha-D-galacto-non-2-ulopyranosonic acid"                   
SIA "SYSTEMATIC NAME"                     "OpenEye OEToolkits" 1.5.0 "(2R,4S,5R,6R)-5-acetamido-2,4-dihydroxy-6-[(1R,2R)-1,2,3-trihydroxypropyl]oxane-2-carboxylic acid" 
SIA "CONDENSED IUPAC CARBOHYDRATE SYMBOL" GMML                 1.0   DNeup5Aca                                                                                           
SIA "COMMON NAME"                         GMML                 1.0   "N-acetyl-a-D-neuraminic acid"                                                                      
SIA "IUPAC CARBOHYDRATE SYMBOL"           PDB-CARE             1.0   a-D-Neup5Ac                                                                                         
SIA "SNFG CARBOHYDRATE SYMBOL"            GMML                 1.0   Neu5Ac                                                                                              
# 
loop_
_pdbx_chem_comp_feature.comp_id 
_pdbx_chem_comp_feature.type 
_pdbx_chem_comp_feature.value 
_pdbx_chem_comp_feature.source 
_pdbx_chem_comp_feature.support 
SIA "CARBOHYDRATE ISOMER"                 D        PDB ? 
SIA "CARBOHYDRATE RING"                   pyranose PDB ? 
SIA "CARBOHYDRATE ANOMER"                 alpha    PDB ? 
SIA "CARBOHYDRATE PRIMARY CARBONYL GROUP" ketose   PDB ? 
# 
loop_
_pdbx_chem_comp_audit.comp_id 
_pdbx_chem_comp_audit.action_type 
_pdbx_chem_comp_audit.date 
_pdbx_chem_comp_audit.processing_site 
SIA "Create component"         1999-07-08 EBI  
SIA "Modify descriptor"        2011-06-04 RCSB 
SIA "Other modification"       2019-08-12 RCSB 
SIA "Other modification"       2019-12-19 RCSB 
SIA "Other modification"       2020-07-03 RCSB 
SIA "Modify name"              2020-07-17 RCSB 
SIA "Modify synonyms"          2020-07-17 RCSB 
SIA "Modify atom id"           2020-07-17 RCSB 
SIA "Modify component atom id" 2020-07-17 RCSB 
SIA "Modify PCM"               2024-09-27 PDBE 
# 
_pdbx_chem_comp_pcm.pcm_id                             1 
_pdbx_chem_comp_pcm.comp_id                            SIA 
_pdbx_chem_comp_pcm.modified_residue_id                THR 
_pdbx_chem_comp_pcm.type                               None 
_pdbx_chem_comp_pcm.category                           Carbohydrate 
_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               C2 
_pdbx_chem_comp_pcm.modified_residue_id_linking_atom   OG1 
_pdbx_chem_comp_pcm.uniprot_specific_ptm_accession     ? 
_pdbx_chem_comp_pcm.uniprot_generic_ptm_accession      ? 
# 
