8P6K

Structure of the hypervariable region of Streptococcus pyogenes M3 protein

• PDB DOI: https://doi.org/10.2210/pdb8P6K/pdb

• Classification: PROTEIN BINDING
• Organism(s): Streptococcus pyogenes serotype M3
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2023-05-26 Released: 2023-07-05 
• Deposition Author(s): Wojnowska, M., Schwarz-Linek, U.
• Funding Organization(s): Medical Research Council (MRC, United Kingdom)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.92 Å
• R-Value Free: 0.268 
• R-Value Work: 0.230 

Starting Model: experimental

Literature

Structural basis for collagen recognition by the Streptococcus pyogenes M3 protein

Wojnowska, M., Yelland, T., Ludewig, H., Hagan, R.M., Watt, G., Hamaia, S., Bihan, D., Farndale, R.W., Schwarz-Linek, U.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: assay for oligomerization

Macromolecule Content

• Total Structure Weight: 26.55 kDa 
• Atom Count: 1,868 
• Modelled Residue Count: 218 
• Deposited Residue Count: 226 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Antiphagocytic M protein, type 3	A [auth BBB], B [auth CCC]	113	Streptococcus pyogenes serotype M3	Mutation(s): 1  Gene Names: emm3, SpyM3_1727
UniProt
Find proteins for A0A0H2UWN1 (Streptococcus pyogenes serotype M3 (strain ATCC BAA-595 / MGAS315)) Explore A0A0H2UWN1  Go to UniProtKB:  A0A0H2UWN1

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.92 Å
• R-Value Free: 0.268 
• R-Value Work: 0.230 
• Space Group: C 1 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 150.474	α = 90
b = 24.107	β = 105.287
c = 78.007	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
xia2	data reduction
xia2	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-07-05 
Deposition Author(s): Wojnowska, M., Schwarz-Linek, U.

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Funding Organization	Location	Grant Number
Medical Research Council (MRC, United Kingdom)	United Kingdom	MR/N009681/1

Revision History  

• Version 1.0: 2023-07-05
  Type: Initial release
  
• Version 1.1: 2024-11-20
  Changes: Data collection, Structure summary