2HQ0

Structure of RafE from Streptococcus pneumoniae

• PDB DOI: https://doi.org/10.2210/pdb2HQ0/pdb

• Classification: SUGAR BINDING PROTEIN
• Organism(s): Streptococcus pneumoniae TIGR4
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2006-07-18 Released: 2007-07-31 
• Deposition Author(s): Paterson, N.G., Riboldi-Tunnicliffe, A., Mitchell, T.J., Isaacs, N.W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.40 Å
• R-Value Free: 0.201 
• R-Value Work: 0.161 
• R-Value Observed: 0.163 

Starting Model: experimental

Literature

High resolution crystal structures of RafE from Streptococcus pneumoniae

Paterson, N.G., Riboldi-Tunnicliffe, A., Mitchell, T.J., Isaacs, N.W.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 43.65 kDa 
• Atom Count: 3,753 
• Modelled Residue Count: 388 
• Deposited Residue Count: 388 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Sugar ABC transporter, sugar-binding protein	A	388	Streptococcus pneumoniae TIGR4	Mutation(s): 0  Gene Names: rafE
UniProt
Find proteins for A0A0H2URJ7 (Streptococcus pneumoniae serotype 4 (strain ATCC BAA-334 / TIGR4)) Explore A0A0H2URJ7  Go to UniProtKB:  A0A0H2URJ7

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ACT	C [auth A], D [auth A], E [auth A]	ACETATE ION C2 H3 O2 QTBSBXVTEAMEQO-UHFFFAOYSA-M
NA	B [auth A]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.40 Å
• R-Value Free: 0.201 
• R-Value Work: 0.161 
• R-Value Observed: 0.163 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 73.754	α = 90
b = 77.7	β = 90
c = 79.226	γ = 90

Software Package:

Software Name	Purpose
d*TREK	data scaling
PHASER	phasing
REFMAC	refinement
PDB_EXTRACT	data extraction
d*TREK	data reduction

Structure Validation

Entry History 

Deposition Data

• Released Date: 2007-07-31 
Deposition Author(s): Paterson, N.G., Riboldi-Tunnicliffe, A., Mitchell, T.J., Isaacs, N.W.

Revision History  

• Version 1.0: 2007-07-31
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Source and taxonomy, Version format compliance
• Version 1.2: 2023-08-30
  Changes: Data collection, Database references, Derived calculations, Refinement description