Biological Assembly 1  

 3D View: Structure | Ligand Interaction

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Global Symmetry: Cyclic - C4  (3D View)
Global Stoichiometry: Homo 4-mer - A4 

Biological assembly 1 assigned by authors and generated by PISA,PQS (software)

Macromolecule Content

• Total Structure Weight: 46584.20 
• Atom Count: 3236 
• Residue Count: 388 
• Unique protein chains: 1

2BAT

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

• DOI: 10.2210/pdb2BAT/pdb

• Classification: HYDROLASE(O-GLYCOSYL)
• Organism(s): Influenza A virus (strain A/Tokyo/3/1967 H2N2)


• Deposited: 1992-08-10 Released: 1994-01-31 
• Deposition Author(s): Varghese, J.N., Colman, P.M.

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Experimental Data Snapshot

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

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

• PubMed: 1438172 
• 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 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.

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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




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Organizational Affiliation: 

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

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
NEURAMINIDASE N2	A	388	Influenza 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
ID	Chains	Name / Formula / InChI Key	2D Diagram & Interactions
CA	A	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N
MAN	A	ALPHA-D-MANNOSE C6 H12 O6 WQZGKKKJIJFFOK-PQMKYFCFSA-N
NGK	A	2-(ACETYLAMINO)-2-DEOXY-4-O-SULFO-ALPHA-D-GALACTOPYRANOSE C8 H15 N O9 S WHCJUIFHMJFEFZ-YQXRAVKXSA-N
BMA	A	BETA-D-MANNOSE C6 H12 O6 WQZGKKKJIJFFOK-RWOPYEJCSA-N
NAG	A	N-ACETYL-D-GLUCOSAMINE C8 H15 N O6 OVRNDRQMDRJTHS-FMDGEEDCSA-N
FUL	A	BETA-L-FUCOSE 6-DEOXY-BETA-L-GALACTOSE C6 H12 O5 SHZGCJCMOBCMKK-KGJVWPDLSA-N
SIA	A	O-SIALIC ACID C11 H19 N O9 SQVRNKJHWKZAKO-YRMXFSIDSA-N

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 = 139.600	α = 90.00
b = 139.600	β = 90.00
c = 191.000	γ = 90.00

Software Package:

Software Name	Purpose
X-PLOR	model building
X-PLOR	phasing
X-PLOR	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1992-08-10 
• Released Date: 1994-01-31 
• Deposition Author(s): Varghese, J.N., Colman, P.M.

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