Biological Assembly 1  

 3D View: Structure | Electron Density

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Global Symmetry: Helical - H  (3D View)
Global Stoichiometry: Homo 8-mer - A8 

Biological assembly 1 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 221003.98 
• Atom Count: 13917 
• Residue Count: 1920 
• Unique protein chains: 1

4WYV

Crystal Structure of Human Translin in Open Conformation

• DOI: 10.2210/pdb4WYV/pdb

• Classification: RNA BINDING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli


• Deposited: 2014-11-18 Released: 2014-11-26 
• Deposition Author(s): Dvir, H., Eliahoo, E., Alian, A.

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Experimental Data Snapshot

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

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

• PubMed: 25433126 
• 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 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.

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Organizational Affiliation: 

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

Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details
Translin	A, B, C, D, E, F, G, H	240	Homo sapiens	Mutation(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 = 82.308	α = 90.00
b = 82.308	β = 90.00
c = 635.164	γ = 90.00

Software Package:

Software Name	Purpose
SCALA	data scaling
REFMAC	refinement
MOSFLM	data reduction
PHASER	phasing

Structure Validation

Entry History 

Deposition Data

• Deposited Date: 2014-11-18 
• Released Date: 2014-11-26 
• Deposition Author(s): Dvir, H., Eliahoo, E., Alian, A.

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