7RG1

Importin alpha2 in complex with MERS ORF4B H26A mutant

• PDB DOI: https://doi.org/10.2210/pdb7RG1/pdb

• Classification: TRANSPORT PROTEIN/Viral Protein
• Organism(s): Mus musculus, Middle East respiratory syndrome-related coronavirus
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2021-07-14 Released: 2021-07-28 
• Deposition Author(s): Munasinghe, T.S., Tsimbalyuk, S., Roby, J.A., Aragao, D., Forwood, J.K.
• Funding Organization(s): National Health and Medical Research Council (NHMRC, Australia)

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 0.211 
• R-Value Work: 0.200 
• R-Value Observed: 0.201 

Literature

Importin alpha2 in complex with MERS ORF4B NLS H26A mutant

Munasinghe, T.S., Tsimbalyuk, S., Roby, J.A., Aragao, D., Forwood, J.K.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

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

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 57.91 kDa 
• Atom Count: 3,697 
• Modelled Residue Count: 444 
• Deposited Residue Count: 531 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Importin subunit alpha-1	A	510	Mus musculus	Mutation(s): 0  Gene Names: Kpna2, Rch1
UniProt & NIH Common Fund Data Resources
Find proteins for P52293 (Mus musculus) Explore P52293  Go to UniProtKB:  P52293
IMPC:  MGI:103561

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
ORF4b	B	21	Middle East respiratory syndrome-related coronavirus	Mutation(s): 1
UniProt
Find proteins for K9N643 (Middle East respiratory syndrome-related coronavirus (isolate United Kingdom/H123990006/2012)) Explore K9N643  Go to UniProtKB:  K9N643

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 0.211 
• R-Value Work: 0.200 
• R-Value Observed: 0.201 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 78.951	α = 90
b = 89.65	β = 90
c = 100.649	γ = 90

Software Package:

Software Name	Purpose
PHASER	phasing
PHENIX	refinement
iMOSFLM	data reduction
Aimless	data scaling
Coot	model building

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2021-07-28 
Deposition Author(s): Munasinghe, T.S., Tsimbalyuk, S., Roby, J.A., Aragao, D., Forwood, J.K.

---

Funding Organization	Location	Grant Number
National Health and Medical Research Council (NHMRC, Australia)	Australia	APP2003636

Revision History  

• Version 1.0: 2021-07-28
  Type: Initial release
  
• Version 1.1: 2023-10-18
  Changes: Data collection, Database references, Refinement description