Structure of PDB 1w21 Chain D Binding Site BS02

Receptor Information
>1w21 Chain D (length=389) Species: 11320 (Influenza A virus) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
RTFLNLTKPLCEVNSWHILSKDNAIRIGEDAHILVTREPYLSCDPQGCRM
FALSQGTTLRGRHANGTIHDRSPFRALISWEMGQAPSPYNTRVECIGWSS
TSCHDGMSRMSICMSGPNNNASAVVWYGGRPITEIPSWAGNILRTQESEC
VCHKGVCPVVMTDGPANNRAATKIIYFKEGKIQKIEELAGNAQHIEECSC
YGAGGVIKCICRDNWKGANRPVITIDPEMMTHTSKYLCSKVLTDTSRPND
PTNGNCDAPITGGSPDPGVKGFAFLDGENSWLGRTISKDSRSGYEMLKVP
NAETDIQSGPISNQVIVNNQNWSGYSGAFIDYWANKECFNPCFYVELIRG
RPKESSVLWTSNSIVALCGSKKRLGSWSWHDGAEIIYFE
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 chain1w21 Chain D Residue 4477 [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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PDB1w21 The Crystal Structure of Type a Influenza Virus Neuraminidase of the N6 Subtype Reveals the Existence of Two Separate Neu5Ac Binding Sites
Resolution2.08 Å
Binding residue
(original residue number in PDB)		E3125 D3157 A3253 E3283 E3284 R3299 R3378 Y3412
Binding residue
(residue number reindexed from 1)		E38 D70 A166 E196 E197 R212 R291 Y325
Annotation score4
Enzymatic activity
Catalytic site (original residue number in PDB) D3157 E3284 R3299 R3378 Y3412
Catalytic site (residue number reindexed from 1) D70 E197 R212 R291 Y325
Enzyme Commision number 3.2.1.18: exo-alpha-sialidase.
Gene Ontology
Molecular Function
GO:0004308 exo-alpha-sialidase activity
Biological Process
GO:0005975 carbohydrate metabolic process
Cellular Component
GO:0016020 membrane
GO:0033644 host cell membrane
GO:0055036 virion membrane

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1w21, PDBe:1w21, PDBj:1w21
PDBsum1w21
PubMed
UniProtQ6XV27|NRAM_I56A2 Neuraminidase (Gene Name=NA)

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