4PWX

Crystal structure of an ATP-bound Get3-Get4-Get5 complex from S.cerevisiae


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 5.4 Å
  • R-Value Free: 0.328 
  • R-Value Work: 0.270 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structure of ATP-bound Get3-Get4-Get5 complex reveals regulation of Get3 by Get4.

Gristick, H.B.Rao, M.Chartron, J.W.Rome, M.E.Shan, S.O.Clemons, W.M.

(2014) Nat.Struct.Mol.Biol. 21: 437-442

  • DOI: 10.1038/nsmb.2813

  • PubMed Abstract: 
  • Correct localization of membrane proteins is essential to all cells. Chaperone cascades coordinate the capture and handover of substrate proteins from the ribosomes to the target membranes, yet the mechanistic and structural details of these processe ...

    Correct localization of membrane proteins is essential to all cells. Chaperone cascades coordinate the capture and handover of substrate proteins from the ribosomes to the target membranes, yet the mechanistic and structural details of these processes remain unclear. Here we investigate the conserved GET pathway, in which the Get4-Get5 complex mediates the handover of tail-anchor (TA) substrates from the cochaperone Sgt2 to the Get3 ATPase, the central targeting factor. We present a crystal structure of a yeast Get3-Get4-Get5 complex in an ATP-bound state and show how Get4 primes Get3 by promoting the optimal configuration for substrate capture. Structure-guided biochemical analyses demonstrate that Get4-mediated regulation of ATP hydrolysis by Get3 is essential to efficient TA-protein targeting. Analogous regulation of other chaperones or targeting factors could provide a general mechanism for ensuring effective substrate capture during protein biogenesis.


    Organizational Affiliation

    Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
ATPase GET3
A, B
356Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: GET3 (ARR4)
EC: 3.6.-.-
Find proteins for Q12154 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q12154
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Golgi to ER traffic protein 4
E, C
288Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: GET4
Find proteins for Q12125 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: GET4
Go to UniProtKB:  Q12125
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Ubiquitin-like protein MDY2
F, D
54Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: MDY2 (GET5, TMA24)
Find proteins for Q12285 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  Q12285
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ATP
Query on ATP

Download SDF File 
Download CCD File 
A, B
ADENOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O13 P3
ZKHQWZAMYRWXGA-KQYNXXCUSA-N
 Ligand Interaction
ZN
Query on ZN

Download SDF File 
Download CCD File 
A
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A, B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 5.4 Å
  • R-Value Free: 0.328 
  • R-Value Work: 0.270 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 166.341α = 90.00
b = 134.501β = 113.37
c = 84.060γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
Web-Icedata collection
MOSFLMdata reduction
PHASERphasing
CNSrefinement
Blu-Icedata collection
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-04-09
    Type: Initial release
  • Version 1.1: 2014-05-21
    Type: Database references
  • Version 1.2: 2017-11-22
    Type: Refinement description