6HCX

Influenza Virus N9 Neuraminidase A complex with Zanamivir molecule (Tern).

• PDB DOI: https://doi.org/10.2210/pdb6HCX/pdb

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


• Deposited: 2018-08-16 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: 1.30 Å
• R-Value Free: 0.125 
• R-Value Work: 0.097 
• R-Value Observed: 0.098 

Literature

High Resolution Structures of Viral Neuraminidase with Drugs Bound in the Active Site. (In preparation)

Salinger, M.T., Hobbs, J.R., Murray, J.W., Laver, W.G., Kuhn, P., Garman, E.F.

To be published.

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: 46.86 kDa 
• Atom Count: 4,098 
• 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  Gene Names: NA 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
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	B	9		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G68668TB GlyCosmos:  G68668TB GlyGen:  G68668TB

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

Small Molecules

Ligands 4 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ZMR	J [auth A]	ZANAMIVIR C12 H20 N4 O7 ARAIBEBZBOPLMB-UFGQHTETSA-N
GOL	G [auth A], H [auth A], I [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
CA	E [auth A], F [auth A]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N
K	K [auth A]	POTASSIUM ION K NPYPAHLBTDXSSS-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.30 Å
• R-Value Free: 0.125 
• R-Value Work: 0.097 
• R-Value Observed: 0.098 
• Space Group: I 4 3 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 180.935	α = 90
b = 180.935	β = 90
c = 180.935	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 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: Data collection, Database references, Derived calculations, Refinement description, Structure summary