2YHT

Crystal structure of Hfq riboregulator from E. coli (P1 space group)

• PDB DOI: https://doi.org/10.2210/pdb2YHT/pdb

• Classification: CHAPERONE
• Organism(s): Escherichia coli
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2011-05-06 Released: 2011-11-16 
• Deposition Author(s): Basquin, J., Sauter, C.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.229 
• R-Value Work: 0.181 
• R-Value Observed: 0.183 

Literature

Exploiting Protein Engineering and Crystal Polymorphism for Successful X-Ray Structure Determination

Bonnefond, L., Schellenberger, P., Basquin, J., Demangeat, G., Ritzenthaler, C., Chenevert, R., Balg, C., Frugier, M., Rudinger-Thirion, J., Giege, R., Lorber, B., Sauter, C.

(2011) Cryst Growth Des 11: 4334

• DOI: https://doi.org/10.1021/CG101468P

Biological Assembly 1  

Global Symmetry: Cyclic - C6  (Explore in 3D)
Global Stoichiometry: Homo 6-mer - A6 

Biological assembly 1 assigned by authors and generated by PISA (software)

Biological Assembly 2  

Global Symmetry: Cyclic - C6  (Explore in 3D)
Global Stoichiometry: Homo 6-mer - A6 

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 99.09 kDa 
• Atom Count: 6,048 
• Modelled Residue Count: 756 
• Deposited Residue Count: 888 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PROTEIN HFQ	A, B, C, D, E, F, G, H, I, J, K, L	74	Escherichia coli	Mutation(s): 0
UniProt
Find proteins for P0A6X3 (Escherichia coli (strain K12)) Explore P0A6X3  Go to UniProtKB:  P0A6X3

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.90 Å
• R-Value Free: 0.229 
• R-Value Work: 0.181 
• R-Value Observed: 0.183 
• Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 61.2	α = 82.6
b = 61.2	β = 87.3
c = 53.1	γ = 60

Software Package:

Software Name	Purpose
PHENIX	refinement
DENZO	data reduction
SCALEPACK	data scaling
AMoRE	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2011-11-16 
Deposition Author(s): Basquin, J., Sauter, C.

Revision History  

• Version 1.0: 2011-11-16
  Type: Initial release
  
• Version 1.1: 2015-03-04
  Changes: Database references
• Version 1.2: 2019-05-08
  Changes: Data collection, Experimental preparation, Other
• Version 1.3: 2023-12-20
  Changes: Data collection, Database references, Other, Refinement description