Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 46718.32 
• Atom Count: 3243 
• Residue Count: 388 
• Unique protein chains: 1

1NN2

THREE-DIMENSIONAL STRUCTURE OF THE NEURAMINIDASE OF INFLUENZA VIRUS A(SLASH)TOKYO(SLASH)3(SLASH)67 AT 2.2 ANGSTROMS RESOLUTION

• DOI: 10.2210/pdb1NN2/pdb

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


• Deposited: 1991-03-28 Released: 1992-07-15 
• Deposition Author(s): Varghese, J.N., Colman, P.M.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.2 Å
• R-Value Work: 0.210 

Literature

Three-dimensional structure of the neuraminidase of influenza virus A/Tokyo/3/67 at 2.2 A resolution.

Varghese, J.N., Colman, P.M.

(1991) J.Mol.Biol. 221: 473-486

• PubMed: 1920428 


• PubMed Abstract: 
  

An atomic model of the tetrameric surface glycoprotein neuraminidase of influenza virus A/Tokyo/3/67 has been built and refined based on X-ray diffraction data at 2.2 A resolution. The crystallographic residual is 0.21 for data between 6 and 2.2 A resolution and the r.m.s. deviations from ideal geometry are 0.02 A for bond lengths and 3.9 degrees for bond angles. The model includes amino acid residues 83 to 469, four oligosaccharide structures N-linked at asparagine residues 86, 146, 200 and 234, a single putative Ca2+ ion site, and 85 water molecules. One of the oligosaccharides participates in a novel crystal contact. The folding pattern is a beta-sheet propeller as described earlier and details of the intramolecular interactions between the six beta-sheets are presented. Strain-invariant residues are clustered around the propeller axis on the upper surface of the molecule where they line the wall of a cavity into which sialic has been observed to bind. Strain-variable residues implicated in binding to antibodies surround this site.

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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	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 6 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

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.2 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	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 1991-03-28 
• Released Date: 1992-07-15 
• Deposition Author(s): Varghese, J.N., Colman, P.M.

Revision History 

• Version 1.0: 1992-07-15
  Type: Initial release
• Version 1.1: 2008-03-03
  Type: Version format compliance
• Version 1.2: 2011-07-13
  Type: Non-polymer description, Version format compliance