Biological Assembly 1  

 3D View: Structure | 1D-3D View | Validation Report

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

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

Macromolecule Content

• Total Structure Weight: 28.98 kDa 
• Atom Count: 2044 
• Modelled Residue Count: 247 
• Deposited Residue Count: 254 
• Unique protein chains: 1

1GY5

D92N,D94N double point mutant of human Nuclear Transport Factor 2 (NTF2)

• PDB DOI: 10.2210/pdb1GY5/pdb

• Classification: NUCLEAR TRANSPORT
• Organism(s): Homo sapiens
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): Yes 


• Deposited: 2002-04-21 Released: 2002-06-20 
• Deposition Author(s): Bayliss, R., Stewart, M.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.264 
• R-Value Work: 0.222 

Literature

Structural Basis for the Interaction between Ntf2 and Nucleoporin Fxfg Repeats

Bayliss, R., Leung, S., Baker, R., Quimby, B., Corbett, A., Stewart, M.

(2002) EMBO J 21: 2843

• PubMed: 12065398 
• DOI: 10.1093/emboj/cdf305
• Primary Citation of Related Structures:  
  1GY5, 1GY6, 1GY7, 1GYB


• PubMed Abstract: 
  

Interactions with nucleoporins containing FxFG-repeat cores are crucial for the nuclear import of RanGDP mediated by nuclear transport factor 2 (NTF2). We describe here the 1.9 A resolution crystal structure of yeast NTF2-N77Y bound to a FxFG-nucleoporin core, which provides a basis for understanding this interaction and its role in nuclear trafficking. The two identical FxFG binding sites on the dimeric molecule are formed by residues from each chain of NTF2. Engineered mutants at the interaction interface reduce the binding of NTF2 to nuclear pores and cause reduced growth rates and Ran mislocalization when substituted for the wild-type protein in yeast. Comparison with the crystal structure of FG-nucleoporin cores bound to importin-beta and TAP/p15 identified a number of common features of their binding sites. The structure of the binding interfaces on these transport factors provides a rationale for the specificity of their interactions with nucleoporins that, combined with their weak binding constants, facilitates rapid translocation through NPCs during nuclear trafficking.

---

Organizational Affiliation: 

MRC Laboratory of Molecular Biology, Hills Road, Cambridge CB2 2QH, UK.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
NUCLEAR TRANSPORT FACTOR 2	A, B	127	Homo sapiens	Mutation(s): 2  Gene Names: NUTF2, NTF2
UniProt & NIH Common Fund Data Resources
Find proteins for P61970 (Homo sapiens) Explore P61970  Go to UniProtKB:  P61970
PHAROS:  P61970

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.30 Å
• R-Value Free: 0.264 
• R-Value Work: 0.222 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 35.04	α = 90
b = 79.02	β = 104.36
c = 42.14	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2002-04-21 
• Released Date: 2002-06-20 
Deposition Author(s): Bayliss, R., Stewart, M.

Revision History  

• Version 1.0: 2002-06-20
  Type: Initial release
  
• Version 1.1: 2011-05-08
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 2.0: 2019-05-22
  Changes: Atomic model, Data collection, Other, Refinement description