5I21

Y55W Hfq from Pseudomonas aeruginosa

• PDB DOI: https://doi.org/10.2210/pdb5I21/pdb

• Classification: RNA BINDING PROTEIN
• Organism(s): Pseudomonas aeruginosa PA7
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2016-02-08 Released: 2016-03-16 
• Deposition Author(s): Nikulin, A.D., Lekontseva, N.V.
• Funding Organization(s): Russian Foundation for Basic Research

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.55 Å
• R-Value Free: 0.213 
• R-Value Work: 0.188 
• R-Value Observed: 0.189 

Literature

Y55W Hfq from Pseudomonas aeruginosa

Nikulin, A.D., Lekontseva, N.V.

To be published.

Biological Assembly 1  

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

Biological assembly 1 generated by PISA (software)

Biological Assembly 2  

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

Biological assembly 2 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 27.45 kDa 
• Atom Count: 1,791 
• Modelled Residue Count: 196 
• Deposited Residue Count: 246 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
RNA-binding protein Hfq	A, B, C	82	Pseudomonas aeruginosa PA7	Mutation(s): 1  Gene Names: hfq, PSPA7_5673
UniProt
Find proteins for A6VD57 (Pseudomonas aeruginosa (strain PA7)) Explore A6VD57  Go to UniProtKB:  A6VD57

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
CL	D [auth A]	CHLORIDE ION Cl VEXZGXHMUGYJMC-UHFFFAOYSA-M

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.55 Å
• R-Value Free: 0.213 
• R-Value Work: 0.188 
• R-Value Observed: 0.189 
• Space Group: P 6

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 114.362	α = 90
b = 114.362	β = 90
c = 28.343	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
XDS	data reduction
SCALA	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2016-03-16 
Deposition Author(s): Nikulin, A.D., Lekontseva, N.V.

---

Funding Organization	Location	Grant Number
Russian Foundation for Basic Research	Russian Federation	14-04-31215

Revision History  

• Version 1.0: 2016-03-16
  Type: Initial release
  
• Version 2.0: 2024-01-10
  Changes: Atomic model, Data collection, Database references, Refinement description