4NN9

REFINED ATOMIC STRUCTURES OF N9 SUBTYPE INFLUENZA VIRUS NEURAMINIDASE AND ESCAPE MUTANTS


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Work: 0.163 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Refined atomic structures of N9 subtype influenza virus neuraminidase and escape mutants.

Tulip, W.R.Varghese, J.N.Baker, A.T.van Donkelaar, A.Laver, W.G.Webster, R.G.Colman, P.M.

(1991) J.Mol.Biol. 221: 487-497

  • Primary Citation of Related Structures:  3NN9, 5NN9, 6NN9

  • PubMed Abstract: 
  • The crystal structure of the N9 subtype neuraminidase of influenza virus was refined by simulated annealing and conventional techniques to an R-factor of 0.172 for data in the resolution range 6.0 to 2.2 A. The r.m.s. deviation from ideal values of b ...

    The crystal structure of the N9 subtype neuraminidase of influenza virus was refined by simulated annealing and conventional techniques to an R-factor of 0.172 for data in the resolution range 6.0 to 2.2 A. The r.m.s. deviation from ideal values of bond lengths is 0.014 A. The structure is similar to that of N2 subtype neuraminidase both in secondary structure elements and in their connections. The three-dimensional structures of several escape mutants of neuraminidase, selected with antineuraminidase monoclonal antibodies, are also reported. In every case, structural changes associated with the point mutation are confined to the mutation site or to residues that are spatially immediately adjacent to it. The failure of antisera to cross-react between N2 and N9 subtypes may be correlated with the absence of conserved, contiguous surface structures of area 700 A2 or more.


    Related Citations: 
    • Influenza Virus Neuraminidase with Hemmagglutinin Activity
      Laver, W.G.,Colman, P.M.,Webster, R.G.,Hinshaw, V.S.,Air, G.M.
      (1984) Virology 137: 314
    • Three-Dimensional Structure of the Neuraminidase of Influenza Virus A(Slash)Tokyo(Slash)3(Slash)67 at 2.2 Angstroms Resolution
      Varghese, J.N.,Colman, P.M.
      (1991) J.Mol.Biol. 221: 473
    • Gene and Protein Sequence of an Influenza Virus Neuraminidase with Hemagglutinin Activity
      Air, G.M.,Ritchie, L.R.,Laver, W.G.,Colman, P.M.
      (1985) Virology 145: 117
    • Three Dimensional Structure of Neuraminidase of Subtype N9 from an Avian Influenza Virus
      Baker, A.T.,Varghese, J.N.,Laver, W.G.,Air, G.M.,Colman, P.M.
      (1987) Proteins 2: 111


    Organizational Affiliation

    CSIRO Division of Biomolecular Engineering, Parkville, Australia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NEURAMINIDASE N9
A
388Influenza A virus (strain A/Tern/Australia/G70C/1975 H11N9)Gene Names: NA
EC: 3.2.1.18
Find proteins for P03472 (Influenza A virus (strain A/Tern/Australia/G70C/1975 H11N9))
Go to UniProtKB:  P03472
Small Molecules
Ligands 3 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
MAN
Query on MAN

Download SDF File 
Download CCD File 
A
ALPHA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-PQMKYFCFSA-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
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.3 Å
  • R-Value Work: 0.163 
  • Space Group: I 4 3 2
Unit Cell:
Length (Å)Angle (°)
a = 185.100α = 90.00
b = 185.100β = 90.00
c = 185.100γ = 90.00
Software Package:
Software NamePurpose
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1992-07-15
    Type: Initial release
  • Version 1.1: 2008-03-25
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Source and taxonomy, Version format compliance