2GW1

Crystal Structure of the Yeast Tom70


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.316 
  • R-Value Work: 0.259 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Crystal structure of yeast mitochondrial outer membrane translocon member Tom70p.

Wu, Y.Sha, B.

(2006) Nat.Struct.Mol.Biol. 13: 589-593

  • DOI: 10.1038/nsmb1106

  • PubMed Abstract: 
  • A majority of the proteins targeted to the mitochondria are transported through the translocase of the outer membrane (TOM) complex. Tom70 is a major surface receptor for mitochondrial protein precursors in the TOM complex. To investigate how Tom70 r ...

    A majority of the proteins targeted to the mitochondria are transported through the translocase of the outer membrane (TOM) complex. Tom70 is a major surface receptor for mitochondrial protein precursors in the TOM complex. To investigate how Tom70 receives the mitochondrial protein precursors, we have determined the crystal structure of yeast Tom70p to 3.0 A. Tom70p forms a homodimer in the crystal. Each subunit consists primarily of tetratricopeptide repeat (TPR) motifs, which are organized into a right-handed superhelix. The TPR motifs in the N-terminal domain of Tom70p form a peptide-binding groove for the C-terminal EEVD motif of Hsp70, whereas the C-terminal domain of Tom70p contains a large pocket that may be the binding site for mitochondrial precursors. The crystal structure of Tom70p provides insights into the mechanisms of precursor transport across the mitochondrion's outer membrane.


    Organizational Affiliation

    Department of Cell Biology, Center for Biophysical Sciences and Engineering, MCLM 364, 1918 Univ. Blvd., University of Alabama at Birmingham, Birmingham, Alabama 35294-0005, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Mitochondrial precursor proteins import receptor
A, B
514Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: TOM70 (MAS70, OMP1)
Find proteins for P07213 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P07213
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3 Å
  • R-Value Free: 0.316 
  • R-Value Work: 0.259 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 44.880α = 90.00
b = 168.597β = 102.59
c = 82.987γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
CNSrefinement
SOLVEphasing
HKL-2000data scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

  • Deposited Date: 2006-05-03 
  • Released Date: 2006-06-27 
  • Deposition Author(s): Wu, Y., Sha, B.

Revision History 

  • Version 1.0: 2006-06-27
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2018-02-14
    Type: Experimental preparation