8FZK | pdb_00008fzk

Dimeric human importin alpha subunit

• PDB DOI: https://doi.org/10.2210/pdb8FZK/pdb

• Classification: TRANSPORT PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2023-01-29 Released: 2023-02-08 
• Deposition Author(s): Donnelly, C.M., Stewart, M., Forwood, J.K.
• Funding Organization(s): Not funded

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 
  0.247 (Depositor), 0.250 (DCC) 
• R-Value Work: 
  0.201 (Depositor), 0.200 (DCC) 
• R-Value Observed: 
  0.204 (Depositor) 

Starting Model: experimental

Literature

Dimeric human importin alpha subunit

Donnelly, C.M., Stewart, M., Forwood, J.K.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Biological Assembly 2  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 2 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 199.39 kDa 
• Atom Count: 13,375 
• Modeled Residue Count: 1,687 
• Deposited Residue Count: 1,840 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Importin subunit alpha-1	A, B, C, D	460	Homo sapiens	Mutation(s): 0  Gene Names: KPNA2, RCH1, SRP1
UniProt & NIH Common Fund Data Resources
Find proteins for P52292 (Homo sapiens) Explore P52292  Go to UniProtKB:  P52292
PHAROS:  P52292 GTEx:  ENSG00000182481

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MES	E [auth A]	2-(N-MORPHOLINO)-ETHANESULFONIC ACID C6 H13 N O4 S SXGZJKUKBWWHRA-UHFFFAOYSA-N
MG	F [auth C]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free:  0.247 (Depositor), 0.250 (DCC) 
• R-Value Work:  0.201 (Depositor), 0.200 (DCC) 
• R-Value Observed: 0.204 (Depositor) 

Space Group: P 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 50.107	α = 103.19
b = 90.838	β = 90.37
c = 94.603	γ = 97.39

Software Package:

Software Name	Purpose
PHENIX	refinement
DIALS	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2023-02-08 
Deposition Author(s): Donnelly, C.M., Stewart, M., Forwood, J.K.

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Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2023-02-08
  Type: Initial release
  
• Version 1.1: 2024-05-22
  Changes: Data collection