3SAL

Crystal Structure of Influenza A Virus Neuraminidase N5

• PDB DOI: https://doi.org/10.2210/pdb3SAL/pdb

• Classification: HYDROLASE
• Organism(s): Influenza A virus (A/duck/Alberta/60/1976(H12N5))
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2011-06-03 Released: 2011-08-10 
• Deposition Author(s): Wang, M.Y., Qi, J.X., Liu, Y., Vavricka, C.J., Wu, Y., Li, Q., Gao, G.F.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 0.164 
• R-Value Work: 0.126 
• R-Value Observed: 0.128 

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 2  

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

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 89.63 kDa 
• Atom Count: 7,225 
• Modelled Residue Count: 788 
• Deposited Residue Count: 790 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Neuraminidase	A, B	395	Influenza A virus (A/duck/Alberta/60/1976(H12N5))	Mutation(s): 0  Gene Names: NA EC: 3.2.1.18
UniProt
Find proteins for A1ILL9 (Influenza A virus (strain A/Duck/Alberta/60/1976 H12N5)) Explore A1ILL9  Go to UniProtKB:  A1ILL9

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	C, E	2		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G42666HT GlyCosmos:  G42666HT GlyGen:  G42666HT

Entity ID: 3
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
beta-D-mannopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose-(1-4)-2-acetamido-2-deoxy-beta-D-glucopyranose	D, F	3		N-Glycosylation
Glycosylation Resources
GlyTouCan:  G15407YE GlyCosmos:  G15407YE GlyGen:  G15407YE

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
GOL	H [auth A], I [auth A], J [auth A], L [auth B], M [auth B]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N
CA	G [auth A], K [auth B]	CALCIUM ION Ca BHPQYMZQTOCNFJ-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 0.164 
• R-Value Work: 0.126 
• R-Value Observed: 0.128 
• Space Group: P 4

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 111.513	α = 90
b = 111.513	β = 90
c = 66.465	γ = 90

Software Package:

Software Name	Purpose
ADSC	data collection
PHASER	phasing
PHENIX	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-08-10 
Deposition Author(s): Wang, M.Y., Qi, J.X., Liu, Y., Vavricka, C.J., Wu, Y., Li, Q., Gao, G.F.

Revision History  

• Version 1.0: 2011-08-10
  Type: Initial release
  
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Advisory, Atomic model, Data collection, Derived calculations, Structure summary
• Version 2.1: 2023-11-01
  Changes: Data collection, Database references, Refinement description, Structure summary