Structure of the Neuraminidase from the B/Lyon/CHU/15.216/2011 virus in complex with Oseltamivir

Experimental Data Snapshot

  • Resolution: 1.80 Å
  • R-Value Free: 0.179 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.172 

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A Novel I221 L Substitution in Neuraminidase Confers High Level Resistance to Oseltamivir in Influenza B Viruses.

Escuret, V.Collins, P.J.Casalegno, J.Vachieri, S.G.Cattle, N.Ferraris, O.Sabatier, M.Frobert, E.Caro, V.Skehel, J.J.Gamblin, S.Valla, F.Valette, M.Ottmann, M.Mccauley, J.W.Daniels, R.S.Lina, B.

(2014) J Infect Dis 210: 1260

  • DOI: 10.1093/infdis/jiu244
  • Primary Citation of Related Structures:  
    4CPY, 4CPZ, 4CPL, 4CPM, 4CPN, 4CPO

  • PubMed Abstract: 
  • Influenza B viruses with a novel I221L substitution in neuraminidase (NA) conferring high-level resistance to oseltamivir were isolated from an immunocompromised patient after prolonged oseltamivir treatment.

    Organizational Affiliation

    Laboratoire de Virologie et Centre National de Référence virus influenzae Laboratoire Virpath EA4610, Faculté de Médecine Lyon Est, Université Claude Bernard Lyon 1, Université de Lyon, and.

Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
NEURAMINIDASEA, B466Influenza B virusMutation(s): 0 
Find proteins for U5XBU0 (Influenza B virus)
Explore U5XBU0 
Go to UniProtKB:  U5XBU0
Protein Feature View
  • Reference Sequence


Entity ID: 2
MoleculeChainsChain Length2D DiagramGlycosylation3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranoseC, D2N-Glycosylation Oligosaccharides Interaction
Glycosylation Resources
GlyTouCan:  G42666HT
GlyCosmos:  G42666HT
GlyGen:  G42666HT
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
G39 (Subject of Investigation/LOI)
Query on G39

Download Ideal Coordinates CCD File 
G [auth A], U [auth B](3R,4R,5S)-4-(acetylamino)-5-amino-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylic acid
C14 H24 N2 O4
 Ligand Interaction
NAG (Subject of Investigation/LOI)
Query on NAG

Download Ideal Coordinates CCD File 
F [auth A], T [auth B]2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
 Ligand Interaction
Query on EDO

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AA [auth B] , H [auth A] , I [auth A] , J [auth A] , K [auth A] , L [auth A] , M [auth A] , N [auth A] , 
AA [auth B],  H [auth A],  I [auth A],  J [auth A],  K [auth A],  L [auth A],  M [auth A],  N [auth A],  O [auth A],  P [auth A],  Q [auth A],  R [auth A],  V [auth B],  W [auth B],  X [auth B],  Y [auth B],  Z [auth B]
C2 H6 O2
 Ligand Interaction
Query on CA

Download Ideal Coordinates CCD File 
E [auth A], S [auth B]CALCIUM ION
 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
G39 Binding MOAD:  4CPY Ki: 491.35 (nM) from 1 assay(s)
BindingDB:  4CPY Ki: 1.1 (nM) from 1 assay(s)
IC50: min: 3, max: 61 (nM) from 4 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 1.80 Å
  • R-Value Free: 0.179 
  • R-Value Work: 0.172 
  • R-Value Observed: 0.172 
  • Space Group: P 32 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 160.094α = 90
b = 160.094β = 90
c = 89.8γ = 120
Software Package:
Software NamePurpose
XDSdata reduction
Aimlessdata scaling

Structure Validation

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Ligand Structure Quality Assessment  

Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2014-05-14
    Type: Initial release
  • Version 1.1: 2014-10-08
    Changes: Database references
  • Version 1.2: 2019-10-09
    Changes: Advisory, Data collection, Derived calculations, Other
  • Version 2.0: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Atomic model, Data collection, Derived calculations, Structure summary