4WYV

Crystal Structure of Human Translin in Open Conformation


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.226 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Re-refinement Note

This entry reflects an alternative modeling of the original data in: 

  • 4JHF - determined by Dvir, H., Eliahoo, E., Alian, A.  

Literature

A novel open-barrel structure of octameric translin reveals a potential RNA entryway.

Eliahoo, E.Marx, A.Manor, H.Alian, A.

(2015) J.Mol.Biol. 427: 756-762

  • DOI: 10.1016/j.jmb.2014.11.013

  • PubMed Abstract: 
  • The single-stranded DNA (ssDNA)/RNA binding protein translin was suggested to be involved in chromosomal translocations, telomere metabolism, and mRNA transport and translation. Oligonucleotide binding surfaces map within a closed cavity of translin ...

    The single-stranded DNA (ssDNA)/RNA binding protein translin was suggested to be involved in chromosomal translocations, telomere metabolism, and mRNA transport and translation. Oligonucleotide binding surfaces map within a closed cavity of translin octameric barrels, raising the question as to how DNA/RNA gain access to this inner cavity, particularly given that, to date, none of the barrel structures reported hint to an entryway. Here, we argue against a mechanism by which translin octamers may "dissociate and reassemble" upon RNA binding and report a novel "open"-barrel structure of human translin revealing a feasible DNA/RNA entryway into the cavity. Additionally, we report that translin not only is confined to binding of ssDNA oligonucleotides, or single-stranded extensions of double-stranded DNA (dsDNA), but also can bind single-stranded sequences internally embedded in dsDNA molecules.


    Organizational Affiliation

    Department of Biology, Technion-Israel Institute of Technology, Haifa 320003, Israel.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Translin
A, B, C, D, E, F, G, H
240Homo sapiensMutation(s): 0 
Gene Names: TSN
EC: 3.1.-.-
Find proteins for Q15631 (Homo sapiens)
Go to Gene View: TSN
Go to UniProtKB:  Q15631
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.226 
  • Space Group: P 41 21 2
Unit Cell:
Length (Å)Angle (°)
a = 82.308α = 90.00
b = 82.308β = 90.00
c = 635.164γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
REFMACrefinement
MOSFLMdata reduction
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-11-26
    Type: Initial release
  • Version 1.1: 2014-12-17
    Type: Database references
  • Version 1.2: 2015-02-18
    Type: Database references