Crystal Structure of B/Perth Neuraminidase D197E mutant in complex with Oseltamivir

Experimental Data Snapshot

  • Resolution: 2.59 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.207 
  • R-Value Observed: 0.208 

wwPDB Validation   3D Report Full Report

This is version 1.4 of the entry. See complete history


Structural and Functional Basis of Resistance to Neuraminidase Inhibitors of Influenza B Viruses.

Oakley, A.J.Barrett, S.Peat, T.S.Newman, J.Streltsov, V.A.Waddington, L.Saito, T.Tashiro, M.McKimm-Breschkin, J.L.

(2010) J Med Chem 

  • DOI: https://doi.org/10.1021/jm100621s
  • Primary Citation of Related Structures:  
    3K36, 3K37, 3K38, 3K39, 3K3A

  • PubMed Abstract: 

    We have identified a virus, B/Perth/211/2001, with a spontaneous mutation, D197E in the neuraminidase (NA), which confers cross-resistance to all NA inhibitors. We analyzed enzyme properties of the D197 and E197 NAs and compared these to a D197N NA, known to arise after oseltamivir treatment. Zanamivir and peramivir bound slowly to the wild type NA, but binding of oseltamivir was more rapid. The D197E/N mutations resulted in faster binding of all three inhibitors. Analysis of the crystal structures of D197 and E197 NAs with and without inhibitors showed that the D197E mutation compromised the interaction of neighboring R150 with the N-acetyl group, common to the substrate sialic acid and all NA inhibitors. Although rotation of the E275 in the NA active site occurs upon binding peramivir in both the D197 and E197 NAs, this does not occur upon binding oseltamivir in the E197 NA. Lack of the E275 rotation would also account for the loss of slow binding and the partial resistance of influenza B wild type NAs to oseltamivir.

  • Organizational Affiliation

    CSIRO Materials Science and Engineering, Parkville, 343 Royal Parade, Parkville, Victoria, 3052, Australia.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B, C, D, E
A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P
397Influenza B virus (B/Perth/211/2001)Mutation(s): 1 
Gene Names: NA
Find proteins for Q3S340 (Influenza B virus)
Explore Q3S340 
Go to UniProtKB:  Q3S340
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ3S340
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on G39

Download Ideal Coordinates CCD File 
CA [auth D]
CB [auth L]
FB [auth M]
GA [auth E]
IB [auth N]
CA [auth D],
CB [auth L],
FB [auth M],
GA [auth E],
IB [auth N],
JA [auth F],
LB [auth O],
MA [auth G],
PA [auth H],
PB [auth P],
S [auth A],
SA [auth I],
W [auth B],
WA [auth J],
Z [auth C],
ZA [auth K]
(3R,4R,5S)-4-(acetylamino)-5-amino-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylic acid
C14 H24 N2 O4
Query on NAG

Download Ideal Coordinates CCD File 
AA [auth D]
AB [auth L]
DB [auth M]
EA [auth E]
GB [auth N]
AA [auth D],
AB [auth L],
DB [auth M],
EA [auth E],
GB [auth N],
HA [auth F],
JB [auth O],
KA [auth G],
NA [auth H],
NB [auth P],
Q [auth A],
QA [auth I],
U [auth B],
UA [auth J],
X [auth C],
XA [auth K]
C8 H15 N O6
Query on YT3

Download Ideal Coordinates CCD File 
DA [auth E],
MB [auth P],
T [auth A],
TA [auth J]
Query on CA

Download Ideal Coordinates CCD File 
BA [auth D]
BB [auth L]
EB [auth M]
FA [auth E]
HB [auth N]
BA [auth D],
BB [auth L],
EB [auth M],
FA [auth E],
HB [auth N],
IA [auth F],
KB [auth O],
LA [auth G],
OA [auth H],
OB [auth P],
R [auth A],
RA [auth I],
V [auth B],
VA [auth J],
Y [auth C],
YA [auth K]
Binding Affinity Annotations 
IDSourceBinding Affinity
G39 PDBBind:  3K3A Ki: 84 (nM) from 1 assay(s)
BindingDB:  3K3A Ki: 1.1 (nM) from 1 assay(s)
IC50: min: 3, max: 61 (nM) from 4 assay(s)
Experimental Data & Validation

Experimental Data

  • Resolution: 2.59 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.207 
  • R-Value Observed: 0.208 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 111.802α = 90.04
b = 123.836β = 90.17
c = 123.967γ = 90.1
Software Package:
Software NamePurpose
ADSCdata collection
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2010-09-01
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Structure summary
  • Version 1.3: 2021-11-10
    Changes: Database references, Structure summary
  • Version 1.4: 2023-11-01
    Changes: Data collection, Refinement description