Structure of PDB 8tj6 Chain C Binding Site BS01

Receptor Information
>8tj6 Chain C (length=316) Species: 380949 (Influenza A virus (A/Beijing/353/1989(H3N2))) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
GATLCLGHHAVPNGTLVKTITNDQIEVTNATELVQSSSTGRICDSPHRIL
DGKNCTLIDALLGDPHCDGFQNKEWDLFVERSKAYSNCYPYDVPDYASLR
SLVASSGTLEFINEDFNWTGVAQSGESYACKRGSVKSFFSRLNWLHESEY
KYPALNVTMPNNGKFDKLYIWGVHHPSTDREQTNLYVRASGRVTVSTKRS
QQTVIPNIGSRPWVRGLSSRISIYWTIVKPGDILLINSTGNLIAPRGYFK
IRTGKSSIMRSDAPIGTCSSECITPNGSIPNDKPFQNVNRITYGACPRYV
KQNTLKLATGMRNVPE
Ligand information
Ligand IDSIA
InChIInChI=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
InChIKeySQVRNKJHWKZAKO-YRMXFSIDSA-N
SMILES
SoftwareSMILES
CACTVS 3.341CC(=O)N[CH]1[CH](O)C[C](O)(O[CH]1[CH](O)[CH](O)CO)C(O)=O
OpenEye OEToolkits 1.5.0CC(=O)NC1C(CC(OC1C(C(CO)O)O)(C(=O)O)O)O
OpenEye OEToolkits 1.5.0CC(=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
ACDLabs 10.04O=C(O)C1(O)OC(C(O)C(O)CO)C(NC(=O)C)C(O)C1
CACTVS 3.341CC(=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
FormulaC11 H19 N O9
NameN-acetyl-alpha-neuraminic acid;
N-acetylneuraminic acid;
sialic acid;
alpha-sialic acid;
O-SIALIC ACID
ChEMBLCHEMBL1234621
DrugBankDB03721
ZINCZINC000004081651
PDB chain8tj6 Chain U Residue 3 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
Global viewLocal viewStructure summary

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PDB8tj6 Evolution of human H3N2 influenza virus receptor specificity has substantially expanded the receptor-binding domain site.
Resolution2.85 Å
Binding residue
(original residue number in PDB)		Y98 E135 S136 Y137 K145 W153 H183 E190 L194
Binding residue
(residue number reindexed from 1)		Y89 E126 S127 Y128 K136 W144 H174 E181 L185
Annotation score4
Enzymatic activity
Enzyme Commision number ?
Gene Ontology
Molecular Function
GO:0046789 host cell surface receptor binding
Biological Process
GO:0019064 fusion of virus membrane with host plasma membrane
Cellular Component
GO:0019031 viral envelope

View graph for
Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:8tj6, PDBe:8tj6, PDBj:8tj6
PDBsum8tj6
PubMed38307019
UniProtO11283|HEMA_I89A2 Hemagglutinin (Gene Name=HA)

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