8RX2

Domains 1 and 2 of Sap S-layer protein from Bacillus anthracis

• PDB DOI: https://doi.org/10.2210/pdb8RX2/pdb

• Classification: STRUCTURAL PROTEIN
• Organism(s): Bacillus anthracis
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2024-02-06 Released: 2024-11-20 
• Deposition Author(s): Sogues, A., Remaut, H.
• Funding Organization(s): European Molecular Biology Organization (EMBO)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.01 Å
• R-Value Free: 0.237 
• R-Value Work: 0.201 
• R-Value Observed: 0.203 

Starting Model: in silico

Literature

Architecture of the Sap S-layer of Bacillus anthracis revealed by integrative structural biology

Sogues, A., Remaut, H.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Biological Assembly 3  

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

Biological assembly 3 assigned by authors.

Biological Assembly 4  

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

Biological assembly 4 assigned by authors.

Macromolecule Content

• Total Structure Weight: 76.98 kDa 
• Atom Count: 5,657 
• Modelled Residue Count: 685 
• Deposited Residue Count: 708 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
S-layer protein sap	A, B, C, D	177	Bacillus anthracis	Mutation(s): 0  Gene Names: sap, BA_0885, GBAA_0885, BAS0841
UniProt
Find proteins for P49051 (Bacillus anthracis) Explore P49051  Go to UniProtKB:  P49051

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MSE	A, B, C, D	L-PEPTIDE LINKING	C5 H11 N O2 Se		MET

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.01 Å
• R-Value Free: 0.237 
• R-Value Work: 0.201 
• R-Value Observed: 0.203 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 48.444	α = 90
b = 128.612	β = 95.76
c = 55.128	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
autoPROC	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-11-20 
Deposition Author(s): Sogues, A., Remaut, H.

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Funding Organization	Location	Grant Number
European Molecular Biology Organization (EMBO)	European Union	ALTF 709-2021

Revision History  

• Version 1.0: 2024-11-20
  Type: Initial release