6HEB

Influenza A Virus N9 Neuraminidase complex with Oseltamivir (Tern).

• PDB DOI: https://doi.org/10.2210/pdb6HEB/pdb

• Classification: HYDROLASE
• Organism(s): Influenza A virus (A/tern/Australia/G70C/1975(H11N9))
• Expression System: Gallus gallus
• Mutation(s): No 


• Deposited: 2018-08-20 Released: 2018-08-29 
• Deposition Author(s): Salinger, M.T., Hobbs, J.R., Murray, J.W., Laver, W.G., Kuhn, P., Garman, E.F.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.75 Å
• R-Value Free: 0.142 
• R-Value Work: 0.119 
• R-Value Observed: 0.120 

Biological Assembly 1  

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

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

Biological Assembly Evidence: homology

Macromolecule Content

• Total Structure Weight: 47.05 kDa 
• Atom Count: 4,005 
• Modelled Residue Count: 388 
• Deposited Residue Count: 388 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Neuraminidase	A	388	Influenza A virus (A/tern/Australia/G70C/1975(H11N9))	Mutation(s): 0  EC: 3.2.1.18
UniProt
Find proteins for P03472 (Influenza A virus (strain A/Tern/Australia/G70C/1975 H11N9)) Explore P03472  Go to UniProtKB:  P03472

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	B, C	2		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G42666HT GlyCosmos:  G42666HT GlyGen:  G42666HT

Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-2)-alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-3)-[alpha-D-mannopyranose-(1-6)]alpha-D-mannopyranose-(1-6)]beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	D	9		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G68668TB GlyCosmos:  G68668TB GlyGen:  G68668TB

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
G39	M [auth A]	(3R,4R,5S)-4-(acetylamino)-5-amino-3-(pentan-3-yloxy)cyclohex-1-ene-1-carboxylic acid C14 H24 N2 O4 NENPYTRHICXVCS-YNEHKIRRSA-N
GOL	G [auth A], H [auth A], I [auth A], J [auth A], K [auth A], L [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
CA	E [auth A], F [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.75 Å
• R-Value Free: 0.142 
• R-Value Work: 0.119 
• R-Value Observed: 0.120 
• Space Group: I 4 3 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 180.691	α = 90
b = 180.691	β = 90
c = 180.691	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling
REFMAC	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2018-08-29 
Deposition Author(s): Salinger, M.T., Hobbs, J.R., Murray, J.W., Laver, W.G., Kuhn, P., Garman, E.F.

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Funding Organization	Location	Grant Number
	United Kingdom	--

Revision History  

• Version 1.0: 2018-08-29
  Type: Initial release
  
• Version 1.1: 2018-09-05
  Changes: Data collection, Database references, Structure summary
• Version 1.2: 2018-12-19
  Changes: Data collection, Derived calculations
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Derived calculations, Structure summary
• Version 2.1: 2024-01-17
  Changes: Advisory, Data collection, Database references, Derived calculations, Refinement description, Structure summary