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 ? #