5FR3

X-ray crystal structure of aggregation-resistant protective antigen of Bacillus anthracis (mutant S559L T576E)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.935 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.178 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structural Hot Spots for the Solubility of Globular Proteins

Ganesan, A.Siekierska, A.Beerten, J.Brams, M.Van Durme, J.De Baets, G.Van Der Kant, R.Gallardo, R.Ramakers, M.Langenberg, T.Wilkinson, H.De Smet, F.Ulens, C.Rousseau, F.Schymkowitz, J.

(2016) Nat.Commun. 7: 10816

  • DOI: 10.1038/ncomms10816

  • PubMed Abstract: 
  • Natural selection shapes protein solubility to physiological requirements and recombinant applications that require higher protein concentrations are often problematic. This raises the question whether the solubility of natural protein sequences can ...

    Natural selection shapes protein solubility to physiological requirements and recombinant applications that require higher protein concentrations are often problematic. This raises the question whether the solubility of natural protein sequences can be improved. We here show an anti-correlation between the number of aggregation prone regions (APRs) in a protein sequence and its solubility, suggesting that mutational suppression of APRs provides a simple strategy to increase protein solubility. We show that mutations at specific positions within a protein structure can act as APR suppressors without affecting protein stability. These hot spots for protein solubility are both structure and sequence dependent but can be computationally predicted. We demonstrate this by reducing the aggregation of human α-galactosidase and protective antigen of Bacillus anthracis through mutation. Our results indicate that many proteins possess hot spots allowing to adapt protein solubility independently of structure and function.


    Organizational Affiliation

    VIB Switch Laboratory, Flanders Institute for Biotechnology (VIB), 3000 Leuven, Belgium.,Vrije Universiteit Brussel, Pleinlaan 2, 1050 Brussel, Belgium.,KU Leuven, Switch Laboratory, Department of Cellular and Molecular Medicine, Herestraat 49, PB 802, 3000 Leuven, Belgium.,KU Leuven, Laboratory for Structural Neurobiology, Department of Cellular and Molecular Medicine, Herestraat 49, PB 601, B-3000 Leuven, Belgium.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTECTIVE ANTIGEN
A
722Bacillus anthracisMutation(s): 2 
Gene Names: pagA (pag)
Find proteins for P13423 (Bacillus anthracis)
Go to UniProtKB:  P13423
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
GOL
Query on GOL

Download SDF File 
Download CCD File 
A
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
CA
Query on CA

Download SDF File 
Download CCD File 
A
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.935 Å
  • R-Value Free: 0.227 
  • R-Value Work: 0.178 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 84.547α = 90.00
b = 94.714β = 90.00
c = 100.627γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
PHENIXrefinement
XDSdata reduction
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-01-27
    Type: Initial release
  • Version 1.1: 2016-03-02
    Type: Database references, Structure summary
  • Version 1.2: 2016-03-09
    Type: Database references