2V6Y

Structure of the MIT domain from a S. solfataricus Vps4-like ATPase


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.252 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Structural Basis for Selective Recognition of Escrt-III by the Aaa ATPase Vps4

Obita, T.Saksena, S.Ghazi-Tabatabai, S.Gill, D.J.Perisic, O.Emr, S.D.Williams, R.L.

(2007) Nature 449: 735

  • DOI: 10.1038/nature06171
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The AAA+ ATPases are essential for various activities such as membrane trafficking, organelle biogenesis, DNA replication, intracellular locomotion, cytoskeletal remodelling, protein folding and proteolysis. The AAA ATPase Vps4, which is central to e ...

    The AAA+ ATPases are essential for various activities such as membrane trafficking, organelle biogenesis, DNA replication, intracellular locomotion, cytoskeletal remodelling, protein folding and proteolysis. The AAA ATPase Vps4, which is central to endosomal traffic to lysosomes, retroviral budding and cytokinesis, dissociates ESCRT complexes (the endosomal sorting complexes required for transport) from membranes. Here we show that, of the six ESCRT--related subunits in yeast, only Vps2 and Did2 bind the MIT (microtubule interacting and transport) domain of Vps4, and that the carboxy-terminal 30 residues of the subunits are both necessary and sufficient for interaction. We determined the crystal structure of the Vps2 C terminus in a complex with the Vps4 MIT domain, explaining the basis for selective ESCRT-III recognition. MIT helices alpha2 and alpha3 recognize a (D/E)xxLxxRLxxL(K/R) motif, and mutations within this motif cause sorting defects in yeast. Our crystal structure of the amino-terminal domain of an archaeal AAA ATPase of unknown function shows that it is closely related to the MIT domain of Vps4. The archaeal ATPase interacts with an archaeal ESCRT-III-like protein even though these organisms have no endomembrane system, suggesting that the Vps4/ESCRT-III partnership is a relic of a function that pre-dates the divergence of eukaryotes and Archaea.


    Organizational Affiliation

    MRC Laboratory of Molecular Biology, Medical Research Council Centre, Cambridge CB2 0QH, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
AAA FAMILY ATPASE, P60 KATANIN
A
83Sulfolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2)Mutation(s): 0 
Find proteins for Q97ZJ7 (Sulfolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2))
Go to UniProtKB:  Q97ZJ7
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
AAA FAMILY ATPASE, P60 KATANIN
B
83Sulfolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2)Mutation(s): 0 
Find proteins for Q97ZJ7 (Sulfolobus solfataricus (strain ATCC 35092 / DSM 1617 / JCM 11322 / P2))
Go to UniProtKB:  Q97ZJ7
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
SRT
Query on SRT

Download SDF File 
Download CCD File 
A, B
S,R MESO-TARTARIC ACID
C4 H6 O6
FEWJPZIEWOKRBE-XIXRPRMCSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.252 
  • Space Group: I 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 56.178α = 90.00
b = 69.267β = 90.00
c = 123.184γ = 90.00
Software Package:
Software NamePurpose
REFMACrefinement
SCALAdata scaling
MOSFLMdata reduction
autoSHARPphasing
SnBphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-10-16
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Advisory, Refinement description, Version format compliance