Structure of N-terminal domain of nuclear RNA export factor TAP

Experimental Data Snapshot

  • Resolution: 3.00 Å
  • R-Value Free: 0.310 
  • R-Value Work: 0.260 
  • R-Value Observed: 0.262 

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Structure-function studies of nucleocytoplasmic transport of retroviral genomic RNA by mRNA export factor TAP.

Teplova, M.Wohlbold, L.Khin, N.W.Izaurralde, E.Patel, D.J.

(2011) Nat Struct Mol Biol 18: 990-998

  • DOI: https://doi.org/10.1038/nsmb.2094
  • Primary Citation of Related Structures:  
    3RW6, 3RW7

  • PubMed Abstract: 

    mRNA export is mediated by the TAP-p15 heterodimer, which belongs to the family of NTF2-like export receptors. TAP-p15 heterodimers also bind to the constitutive transport element (CTE) present in simian type D retroviral RNAs, and they mediate the export of viral unspliced RNAs to the host cytoplasm. We have solved the crystal structure of the RNA recognition and leucine-rich repeat motifs of TAP bound to one symmetrical half of the CTE RNA. L-shaped conformations of protein and RNA are involved in a mutual molecular embrace on complex formation. We have monitored the impact of structure-guided mutations on binding affinities in vitro and transport assays in vivo. Our studies define the principles by which CTE RNA subverts the mRNA export receptor TAP, thereby facilitating the nuclear export of viral genomic RNAs, and, more generally, provide insights on cargo RNA recognition by mRNA export receptors.

  • Organizational Affiliation

    Structural Biology Program, Memorial Sloan-Kettering Cancer Center, New York, New York, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Nuclear RNA export factor 1
A, B, C, D
267Homo sapiensMutation(s): 0 
Gene Names: NXF1TAPTAP (NXF1)
UniProt & NIH Common Fund Data Resources
Find proteins for Q9UBU9 (Homo sapiens)
Explore Q9UBU9 
Go to UniProtKB:  Q9UBU9
GTEx:  ENSG00000162231 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9UBU9
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 3.00 Å
  • R-Value Free: 0.310 
  • R-Value Work: 0.260 
  • R-Value Observed: 0.262 
  • Space Group: P 41 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 139.373α = 90
b = 139.373β = 90
c = 207.113γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2011-08-10
    Type: Initial release
  • Version 1.1: 2011-11-02
    Changes: Database references
  • Version 1.2: 2024-02-28
    Changes: Data collection, Database references