4DAP

The structure of Escherichia coli SfsA

• PDB DOI: https://doi.org/10.2210/pdb4DAP/pdb

• Classification: DNA BINDING PROTEIN
• Organism(s): Escherichia coli K-12
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2012-01-13 Released: 2013-08-14 
• Deposition Author(s): Baker, P.J., Allen, F.L.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.231 
• R-Value Work: 0.205 
• R-Value Observed: 0.206 

Literature

The structure of SfsA and its DNA complex; A DNA/RNA nuclease with a novel domain combination

Allen, F.L., Akerboom, J., Bliss, S.J., Blombach, F., Sedelnikova, S.E., van der Oost, J., Baker, P.J.

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)

Macromolecule Content

• Total Structure Weight: 26.28 kDa 
• Atom Count: 1,979 
• Modelled Residue Count: 232 
• Deposited Residue Count: 234 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Sugar fermentation stimulation protein A	A	234	Escherichia coli K-12	Mutation(s): 0  Gene Names: sfsA, sfs1, b0146, JW0142
UniProt
Find proteins for P0A823 (Escherichia coli (strain K12)) Explore P0A823  Go to UniProtKB:  P0A823

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NA	B [auth A]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.20 Å
• R-Value Free: 0.231 
• R-Value Work: 0.205 
• R-Value Observed: 0.206 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 117.728	α = 90
b = 117.728	β = 90
c = 77.594	γ = 90

Software Package:

Software Name	Purpose
GDA	data collection
SOLVE	phasing
REFMAC	refinement
MOSFLM	data reduction
SCALA	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2013-08-14 
Deposition Author(s): Baker, P.J., Allen, F.L.

Revision History  

• Version 1.0: 2013-08-14
  Type: Initial release
  
• Version 1.1: 2014-10-15
  Changes: Structure summary
• Version 1.2: 2024-02-28
  Changes: Data collection, Database references, Derived calculations