4HZZ

Crystal structure of influenza neuraminidase N3-H274Y complexed with oseltamivir


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.601 Å
  • R-Value Free: 0.165 
  • R-Value Work: 0.138 

wwPDB Validation 3D Report Full Report


This is version 1.0 of the entry. See complete history

Literature

Functional and structural analysis of influenza virus neuraminidase N3 offers further insight into the mechanisms of oseltamivir resistance.

Li, Q.Qi, J.Wu, Y.Kiyota, H.Tanaka, K.Suhara, Y.Ohrui, H.Suzuki, Y.Vavricka, C.J.Gao, G.F.

(2013) J.Virol. 87: 10016-10024

  • DOI: 10.1128/JVI.01129-13
  • Primary Citation of Related Structures:  4HZV, 4HZW, 4HZX, 4HZY, 4I00

  • PubMed Abstract: 
  • The influenza virus neuraminidase H274Y substitution is a highly prevalent amino acid substitution associated with resistance to the most heavily used influenza drug, oseltamivir. Previous structural studies suggest that the group specific 252 residu ...

    The influenza virus neuraminidase H274Y substitution is a highly prevalent amino acid substitution associated with resistance to the most heavily used influenza drug, oseltamivir. Previous structural studies suggest that the group specific 252 residue (Y252 in group 1 and T252 in group 2) might be a key factor underlying H274Y resistance. However, H274Y has only been reported in N1 subtypes, which indicates that there must be additional key residues that determine H274Y resistance. Furthermore, we found that members of NA serotype N3 also possess Y252, raising the key question as to whether or not H274Y resistance may also be possible for some group 2 NAs. Here, we demonstrate that the H274Y substitution results in mild oseltamivir resistance for N3. Comparative structural analysis of N3, N1, and their 274Y variants indicates that the interaction of residue 296 (H in N1 and nonaromatic for other serotypes) with conserved W295 is another important determinant of oseltamivir resistance.


    Organizational Affiliation

    School of Life Sciences, University of Science and Technology of China, Hefei, Anhui Province, China.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Neuraminidase
A
387Influenza A virus (A/swine/Missouri/2124514/2006(H2N3))Gene Names: NA
EC: 3.2.1.18
Find proteins for A9YN63 (Influenza A virus (A/swine/Missouri/2124514/2006(H2N3)))
Go to UniProtKB:  A9YN63
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
FUC
Query on FUC

Download SDF File 
Download CCD File 
A
ALPHA-L-FUCOSE
C6 H12 O5
SHZGCJCMOBCMKK-SXUWKVJYSA-N
 Ligand Interaction
G39
Query on G39

Download SDF File 
Download CCD File 
A
(3R,4R,5S)-4-(acetylamino)-5-amino-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylic acid
Oseltamivir carboxylate
C14 H24 N2 O4
NENPYTRHICXVCS-YNEHKIRRSA-N
 Ligand Interaction
NAG
Query on NAG

Download SDF File 
Download CCD File 
A
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
G39IC50: 8.31 nM BINDINGMOAD
G39IC50: 8.31 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.601 Å
  • R-Value Free: 0.165 
  • R-Value Work: 0.138 
  • Space Group: I 4
Unit Cell:
Length (Å)Angle (°)
a = 108.113α = 90.00
b = 108.113β = 90.00
c = 62.226γ = 90.00
Software Package:
Software NamePurpose
PHENIXrefinement
PHASERphasing
HKL-2000data reduction
HKL-2000data scaling
GUGIdata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-11-06
    Type: Initial release