Biological Assembly 1  

 3D View: Structure | Electron Density

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

Biological assembly 1 generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 221.00 kDa 
• Atom Count: 13935 
• Residue Count: 1702 
• Unique protein chains: 1

4WYV

Crystal Structure of Human Translin in Open Conformation

• DOI: 10.2210/pdb4WYV/pdb
• Entry: 4WYV supersedes: 4JHF

• Classification: RNA BINDING PROTEIN
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• 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: 3.00 Å
• R-Value Free: 0.272 
• R-Value Work: 0.226 
• R-Value Observed: 0.228 

Re-refinement Note

This entry reflects an alternative modeling of the original data in:4JHF

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
• Primary Citation of Related Structures:  
  4WYV


• 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. Electronic address: [e-mail].

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
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) Explore Q15631  Go to UniProtKB:  Q15631
NIH Common Fund Data Resources
PHAROS:  Q15631 GTEx:  ENSG00000211460

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 3.00 Å
• R-Value Free: 0.272 
• R-Value Work: 0.226 
• R-Value Observed: 0.228 
• Space Group: P 4₁ 2₁ 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 82.308	α = 90
b = 82.308	β = 90
c = 635.164	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
SCALA	data scaling
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.
• This entry supersedes: 4JHF

Revision History 

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