5EKZ

Crystal structure of mouse Taco1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.202 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Loss of the RNA-binding protein TACO1 causes late-onset mitochondrial dysfunction in mice.

Richman, T.R.Spahr, H.Ermer, J.A.Davies, S.M.Viola, H.M.Bates, K.A.Papadimitriou, J.Hool, L.C.Rodger, J.Larsson, N.G.Rackham, O.Filipovska, A.

(2016) Nat Commun 7: 11884-11884

  • DOI: 10.1038/ncomms11884

  • PubMed Abstract: 
  • The recognition and translation of mammalian mitochondrial mRNAs are poorly understood. To gain further insights into these processes in vivo, we characterized mice with a missense mutation that causes loss of the translational activator of cytochrom ...

    The recognition and translation of mammalian mitochondrial mRNAs are poorly understood. To gain further insights into these processes in vivo, we characterized mice with a missense mutation that causes loss of the translational activator of cytochrome oxidase subunit I (TACO1). We report that TACO1 is not required for embryonic survival, although the mutant mice have substantially reduced COXI protein, causing an isolated complex IV deficiency. We show that TACO1 specifically binds the mt-Co1 mRNA and is required for translation of COXI through its association with the mitochondrial ribosome. We determined the atomic structure of TACO1, revealing three domains in the shape of a hook with a tunnel between domains 1 and 3. Mutations in the positively charged domain 1 reduce RNA binding by TACO1. The Taco1 mutant mice develop a late-onset visual impairment, motor dysfunction and cardiac hypertrophy and thus provide a useful model for future treatment trials for mitochondrial disease.


    Organizational Affiliation

    Harry Perkins Institute of Medical Research and Centre for Medical Research, University of Western Australia, Nedlands, Western Australia 6009, Australia.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Translational activator of cytochrome c oxidase 1
A
294Mus musculusMutation(s): 0 
Gene Names: Taco1 (Ccdc44)
Find proteins for Q8K0Z7 (Mus musculus)
Go to UniProtKB:  Q8K0Z7
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.202 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 48.550α = 90.00
b = 55.380β = 90.00
c = 92.050γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
BUSTERrefinement
XSCALEdata scaling
PHENIXrefinement
XDSdata reduction
AutoSolphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-06-29
    Type: Initial release
  • Version 1.1: 2017-08-16
    Type: Data collection