4GU3

Crystal structure of the T1L reovirus attachment protein sigma1 in complex with the GM2 glycan

• PDB DOI: https://doi.org/10.2210/pdb4GU3/pdb

• Classification: VIRAL PROTEIN
• Organism(s): Mammalian orthoreovirus 1 Lang
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2012-08-29 Released: 2012-12-05 
• Deposition Author(s): Reiss, K., Stehle, T.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 3.60 Å
• R-Value Free: 0.204 
• R-Value Work: 0.185 
• R-Value Observed: 0.187 

Biological Assembly 1  

Global Symmetry: Cyclic - C3  (Explore in 3D)
Global Stoichiometry: Homo 3-mer - A3 

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

Macromolecule Content

• Total Structure Weight: 76.01 kDa 
• Atom Count: 4,947 
• Modelled Residue Count: 614 
• Deposited Residue Count: 657 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Outer capsid protein sigma-1	A, B, C	219	Mammalian orthoreovirus 1 Lang	Mutation(s): 0  Gene Names: S1
UniProt
Find proteins for P04506 (Reovirus type 1 (strain Lang)) Explore P04506  Go to UniProtKB:  P04506

Oligosaccharides

Help

Entity ID: 2
Molecule	Chains	Length	2D Diagram	Glycosylation	3D Interactions
N-acetyl-alpha-neuraminic acid-(2-3)-[2-acetamido-2-deoxy-beta-D-galactopyranose-(1-4)]beta-D-galactopyranose-(1-4)-beta-D-glucopyranose	D, E, F	4		N/A
Glycosylation Resources
GlyTouCan:  G79389NT GlyCosmos:  G79389NT GlyGen:  G79389NT

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.60 Å
• R-Value Free: 0.204 
• R-Value Work: 0.185 
• R-Value Observed: 0.187 
• Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 147.46	α = 90
b = 147.46	β = 90
c = 164.48	γ = 120

Software Package:

Software Name	Purpose
XDS	data scaling
PHASER	phasing
BUSTER	refinement
XDS	data reduction
XSCALE	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2012-12-05 
Deposition Author(s): Reiss, K., Stehle, T.

Revision History  

• Version 1.0: 2012-12-05
  Type: Initial release
  
• Version 1.1: 2012-12-26
  Changes: Database references
• Version 2.0: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Atomic model, Data collection, Database references, Derived calculations, Structure summary
• Version 2.1: 2024-02-28
  Changes: Data collection, Database references, Structure summary