2BAT

THE STRUCTURE OF THE COMPLEX BETWEEN INFLUENZA VIRUS NEURAMINIDASE AND SIALIC ACID, THE VIRAL RECEPTOR


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Work: 0.210 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The structure of the complex between influenza virus neuraminidase and sialic acid, the viral receptor.

Varghese, J.N.McKimm-Breschkin, J.L.Caldwell, J.B.Kortt, A.A.Colman, P.M.

(1992) Proteins 14: 327-332

  • DOI: 10.1002/prot.340140302

  • PubMed Abstract: 
  • Crystallographic studies of neuraminidase-sialic acid complexes indicate that sialic acid is distorted on binding the enzyme. Three arginine residues on the enzyme interact with the carboxylate group of the sugar which is observed to be equatorial to ...

    Crystallographic studies of neuraminidase-sialic acid complexes indicate that sialic acid is distorted on binding the enzyme. Three arginine residues on the enzyme interact with the carboxylate group of the sugar which is observed to be equatorial to the saccharide ring as a consequence of its distorted geometry. The glycosidic oxygen is positioned within hydrogen-bonding distance of Asp-151, implicating this residue in catalysis.


    Related Citations: 
    • 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
    • Amino Acid Sequence of the Pronase-Released Heads of Neuraminidase Subtype N2 from the Asian Strain A(Slash)Tokyo(Slash)3(Slash)67 of Influenza Virus
      Ward, C.W.,Elleman, T.C.,Azad, A.A.
      (1982) Biochem.J. 207: 91


    Organizational Affiliation

    CSIRO, Division of Biomolecular Engineering, Parkville, Victoria, Australia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
NEURAMINIDASE N2
A
388Influenza A virus (strain A/Tokyo/3/1967 H2N2)Mutation(s): 0 
Gene Names: NA
EC: 3.2.1.18
Find proteins for P06820 (Influenza A virus (strain A/Tokyo/3/1967 H2N2))
Go to UniProtKB:  P06820
Small Molecules
Ligands 7 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

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Download CCD File 
A
ALPHA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-PQMKYFCFSA-N
 Ligand Interaction
NGK
Query on NGK

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Download CCD File 
A
2-(ACETYLAMINO)-2-DEOXY-4-O-SULFO-ALPHA-D-GALACTOPYRANOSE
C8 H15 N O9 S
WHCJUIFHMJFEFZ-YQXRAVKXSA-N
 Ligand Interaction
BMA
Query on BMA

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Download CCD File 
A
BETA-D-MANNOSE
C6 H12 O6
WQZGKKKJIJFFOK-RWOPYEJCSA-N
 Ligand Interaction
NAG
Query on NAG

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Download CCD File 
A
N-ACETYL-D-GLUCOSAMINE
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
FUL
Query on FUL

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Download CCD File 
A
BETA-L-FUCOSE
6-DEOXY-BETA-L-GALACTOSE
C6 H12 O5
SHZGCJCMOBCMKK-KGJVWPDLSA-N
 Ligand Interaction
SIA
Query on SIA

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Download CCD File 
A
O-SIALIC ACID
C11 H19 N O9
SQVRNKJHWKZAKO-YRMXFSIDSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Work: 0.210 
  • Space Group: I 4 2 2
Unit Cell:
Length (Å)Angle (°)
a = 139.600α = 90.00
b = 139.600β = 90.00
c = 191.000γ = 90.00
Software Package:
Software NamePurpose
X-PLORmodel building
X-PLORphasing
X-PLORrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1994-01-31
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Derived calculations, Version format compliance