Structure of PDB 1inf Chain A

Receptor sequence
>1infA (length=390) Species: 11520 (Influenza B virus) [Search protein sequence]
EPEWTYPRLSCQGSTFQKALLISPHRFGEIKGNSAPLIIREPFVACGPKE
CRHFALTHYAAQPGGYYNGTRKDRNKLRHLVSVKLGKIPTVENSIFHMAA
WSGSACHDGREWTYIGVDGPDNDALVKIKYGEAYTDTYHSYAHNILRTQE
SACNCIGGDCYLMITDGSASGISKCRFLKIREGRIIKEILPTGRVEHTEE
CTCGFASNKTIECACRDNSYTAKRPFVKLNVETDTAEIRLMCTKTYLDTP
RPDDGSIAGPCESNGDKWLGGIKGGFVHQRMASKIGRWYSRTMSKTNRMG
MELYVKYDGDPWTDSDALTLSGVMVSIEEPGWYSFGFEIKDKKCDVPCIG
IEMVHDGGKDTWHSAATAIYCLMGSGQLLWDTVTGVDMAL
3D structure
PDB1inf Structure-based inhibitors of influenza virus sialidase. A benzoic acid lead with novel interaction.
ChainA
Resolution2.4 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) D149 E276 R292 R374 Y409
Catalytic site (residue number reindexed from 1) D73 E200 R216 R298 Y333
Enzyme Commision number 3.2.1.18: exo-alpha-sialidase.
Interaction with ligand
Site
#		 Ligand Ligand
chain		 Binding residues on receptor
(original residue number in PDB)		 Binding residues on receptor
(residue number reindexed from 1)		 Binding affinity
BS01 CA A D293 T297 D324 G346 D217 T221 D248 G270
BS02 ST4 A R116 E117 D149 W177 R223 E275 E276 R292 R374 Y409 R40 E41 D73 W101 R147 E199 E200 R216 R298 Y333 MOAD: ic50=10uM
PDBbind-CN: -logKd/Ki=5.00,IC50=10uM
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:1inf, PDBe:1inf, PDBj:1inf
PDBsum1inf
PubMed7650674
UniProtP03474|NRAM_INBLE Neuraminidase (Gene Name=NA)

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