4ZXK

Carbohydrate binding domain from Streptococcus pneumoniae NanA sialidase

• PDB DOI: https://doi.org/10.2210/pdb4ZXK/pdb

• Classification: SUGAR BINDING PROTEIN
• Organism(s): Streptococcus pneumoniae
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2015-05-20 Released: 2015-05-27 
• Deposition Author(s): Yang, L., Connaris, H., Potter, J.A., Taylor, G.L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.84 Å
• R-Value Free: 0.208 
• R-Value Work: 0.162 
• R-Value Observed: 0.165 

Literature

Carbohydrate binding domain from Streptococcus pneumoniae NanA sialidase

Yang, L., Connaris, H., Potter, J.A., Taylor, G.L.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Biological Assembly 2  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Macromolecule Content

• Total Structure Weight: 42.13 kDa 
• Atom Count: 3,343 
• Modelled Residue Count: 376 
• Deposited Residue Count: 376 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Sialidase A	A, B	188	Streptococcus pneumoniae	Mutation(s): 0  Gene Names: nanA EC: 3.2.1.18
UniProt
Find proteins for P62575 (Streptococcus pneumoniae) Explore P62575  Go to UniProtKB:  P62575

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.84 Å
• R-Value Free: 0.208 
• R-Value Work: 0.162 
• R-Value Observed: 0.165 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 39.234	α = 90
b = 66.984	β = 92.43
c = 66.792	γ = 90

Software Package:

Software Name	Purpose
SCALEPACK	data scaling
REFMAC	refinement
PDB_EXTRACT	data extraction
HKL-2000	data reduction
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2015-05-27 
Deposition Author(s): Yang, L., Connaris, H., Potter, J.A., Taylor, G.L.

Revision History  

• Version 1.0: 2015-05-27
  Type: Initial release
  
• Version 1.1: 2024-01-10
  Changes: Data collection, Database references, Refinement description