3MVB

Crystal structure of a triple RFY mutant of human MTERF1 bound to the termination sequence


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.79 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.206 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Helix unwinding and base flipping enable human MTERF1 to terminate mitochondrial transcription.

Yakubovskaya, E.Mejia, E.Byrnes, J.Hambardjieva, E.Garcia-Diaz, M.

(2010) Cell 141: 982-993

  • DOI: 10.1016/j.cell.2010.05.018
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Defects in mitochondrial gene expression are associated with aging and disease. Mterf proteins have been implicated in modulating transcription, replication and protein synthesis. We have solved the structure of a member of this family, the human mit ...

    Defects in mitochondrial gene expression are associated with aging and disease. Mterf proteins have been implicated in modulating transcription, replication and protein synthesis. We have solved the structure of a member of this family, the human mitochondrial transcriptional terminator MTERF1, bound to dsDNA containing the termination sequence. The structure indicates that upon sequence recognition MTERF1 unwinds the DNA molecule, promoting eversion of three nucleotides. Base flipping is critical for stable binding and transcriptional termination. Additional structural and biochemical results provide insight into the DNA binding mechanism and explain how MTERF1 recognizes its target sequence. Finally, we have demonstrated that the mitochondrial pathogenic G3249A and G3244A mutations interfere with key interactions for sequence recognition, eliminating termination. Our results provide insight into the role of mterf proteins and suggest a link between mitochondrial disease and the regulation of mitochondrial transcription.


    Organizational Affiliation

    Department of Pharmacological Sciences. Stony Brook University, Stony Brook, NY 11794, USA.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Transcription termination factor, mitochondrial
O
343Homo sapiensMutation(s): 3 
Gene Names: MTERF1MTERF
Find proteins for Q99551 (Homo sapiens)
Go to UniProtKB:  Q99551
NIH Common Fund Data Resources
PHAROS  Q99551

Find similar nucleic acids by: Sequence  |  Structure

Entity ID: 2
MoleculeChainsLengthOrganism
5'-D(*AP*TP*TP*AP*CP*CP*GP*GP*GP*CP*TP*CP*TP*GP*CP*CP*AP*TP*CP*TP*TP*A)-3'D22N/A

Find similar nucleic acids by: Sequence  |  Structure

Entity ID: 3
MoleculeChainsLengthOrganism
5'-D(*TP*AP*AP*GP*AP*TP*GP*GP*CP*AP*GP*AP*GP*CP*CP*CP*GP*GP*TP*AP*AP*T)-3'E22N/A
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.79 Å
  • R-Value Free: 0.263 
  • R-Value Work: 0.202 
  • R-Value Observed: 0.206 
  • Space Group: C 2 2 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 87.526α = 90
b = 91.431β = 90
c = 159.047γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
MOLREPphasing
PHENIXrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-06-30
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2017-11-08
    Changes: Refinement description