3E4R

Crystal structure of the alkanesulfonate binding protein (SsuA) from the phytopathogenic bacteria Xanthomonas axonopodis pv. citri bound to HEPES

• PDB DOI: https://doi.org/10.2210/pdb3E4R/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Xanthomonas citri
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2008-08-12 Released: 2008-09-23 
• Deposition Author(s): Balan, A., Araujo, F.T., Sanches, M., Chirgadze, D.Y., Blundell, T.B., Barbosa, J.A.R.G.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.01 Å
• R-Value Free: 0.220 
• R-Value Work: 0.142 
• R-Value Observed: 0.145 

Literature

Crystal structure of the alkanesulfonate binding protein (SsuA) from the phytopathogenic bacteria Xanthomonas axonopodis pv. citri bound to HEPES

Balan, A., Araujo, F.T., Sanches, M., Chirgadze, D.Y., Blundell, T.L., Barbosa, J.A.R.G.

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: 34.8 kDa 
• Atom Count: 2,570 
• Modelled Residue Count: 291 
• Deposited Residue Count: 324 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Nitrate transport protein	A	324	Xanthomonas citri	Mutation(s): 0  Gene Names: ssuA

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EPE	B [auth A]	4-(2-HYDROXYETHYL)-1-PIPERAZINE ETHANESULFONIC ACID C8 H18 N2 O4 S JKMHFZQWWAIEOD-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.01 Å
• R-Value Free: 0.220 
• R-Value Work: 0.142 
• R-Value Observed: 0.145 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 30.66	α = 90
b = 85.5	β = 98.08
c = 46.83	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
HKL-2000	data collection
XDS	data reduction
SCALA	data scaling
SHARP	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-09-23 
Deposition Author(s): Balan, A., Araujo, F.T., Sanches, M., Chirgadze, D.Y., Blundell, T.B., Barbosa, J.A.R.G.

Revision History  

• Version 1.0: 2008-09-23
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2024-02-21
  Changes: Data collection, Database references, Derived calculations