Structure of PDB 4ks5 Chain A

Receptor sequence
>4ks5A (length=388) Species: 385580 (Influenza A virus (A/duck/Ukraine/1/1963(H3N8))) [Search protein sequence]
TYMNNTEAICDVKGFAPFSKDNGIRIGSRGHIFVIREPFVSCSPIECRTF
FLTQGSLLNDKHSNGTVKDRSPFRTLMSVKVGQSPNVYQARFEAVAWSAT
ACHDGKKWMTVGVTGPDSKAVAVIHYGGVPTDVINSWAGDILRTQESSCT
CIQGDCYWVMTDGPANRQAQYRIYKANQGRIIGQADISFNGGHIEECSCY
PNDGKVECVCRDNWTGTNRPVLVISPDLSYRVGYLCAGIPSDTPRGEDAQ
FTGSCTSPMGNQGYGVKGFGFRQGTDVWMGRTISRTSRSGFEILRIKNGW
TQTSKEQVRKQVVVDNLNWSGYSGSFTLPVELSGKDCLVPCFWVEMIRGK
PEEKTIWTSSSSIVMCGVDYEIADWSWHDGAILPFDID
3D structure
PDB4ks5 Structural basis for a class of nanomolar influenza A neuraminidase inhibitors.
ChainA
Resolution2.699 Å
3D
structure
Catalytic site residues are labeled in the structure
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Enzymatic activity
Catalytic site (original residue number in PDB) D151 E277 R292 R371 Y406
Catalytic site (residue number reindexed from 1) D69 E196 R211 R288 Y322
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 G297 D324 Y347 G348 D212 G216 D242 Y264 G265
BS02 1SO A E119 D151 R152 R156 W178 R224 E276 R292 Y406 E37 D69 R70 R74 W97 R143 E195 R211 Y322 PDBbind-CN: -logKd/Ki=6.89,Ki=130nM
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:4ks5, PDBe:4ks5, PDBj:4ks5
PDBsum4ks5
PubMed24129600
UniProtQ0A480

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