4HPQ

Crystal Structure of the Atg17-Atg31-Atg29 Complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.06 Å
  • R-Value Free: 0.336 
  • R-Value Work: 0.303 
  • R-Value Observed: 0.305 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Architecture of the atg17 complex as a scaffold for autophagosome biogenesis.

Ragusa, M.J.Stanley, R.E.Hurley, J.H.

(2012) Cell 151: 1501-1512

  • DOI: 10.1016/j.cell.2012.11.028
  • Primary Citation of Related Structures:  
    4HPQ

  • PubMed Abstract: 
  • Macroautophagy is a bulk clearance mechanism in which the double-membraned phagophore grows and engulfs cytosolic material. In yeast, the phagophore nucleates from a cluster of 20-30 nm diameter Atg9-containing vesicles located at a multiprotein asse ...

    Macroautophagy is a bulk clearance mechanism in which the double-membraned phagophore grows and engulfs cytosolic material. In yeast, the phagophore nucleates from a cluster of 20-30 nm diameter Atg9-containing vesicles located at a multiprotein assembly known as the preautophagosomal structure (PAS). The crystal structure of a 2:2:2 complex of the earliest acting PAS proteins, Atg17, Atg29, and Atg31, was solved at 3.05 Å resolution. Atg17 is crescent shaped with a 10 nm radius of curvature. Dimerization of the Atg17-Atg31-Atg29 complex is critical for both PAS formation and autophagy, and each dimer contains two separate and complete crescents. Upon induction of autophagy, Atg17-Atg31-Atg29 assembles with Atg1 and Atg13, which in turn initiates the formation of the phagophore. The C-terminal EAT domain of Atg1 was shown to sense membrane curvature, dimerize, and tether lipid vesicles. These data suggest a structural mechanism for the organization of Atg9 vesicles into the early phagophore.


    Organizational Affiliation

    Laboratory of Molecular Biology, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Atg29AD69Lachancea thermotolerans CBS 6340Mutation(s): 0 
Gene Names: KLTH0D11660g
Find proteins for C5DF24 (Lachancea thermotolerans (strain ATCC 56472 / CBS 6340 / NRRL Y-8284))
Explore C5DF24 
Go to UniProtKB:  C5DF24
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Atg31BE159Lachancea thermotolerans CBS 6340Mutation(s): 2 
Gene Names: KLTH0C07942g
Find proteins for C5DEB9 (Lachancea thermotolerans (strain ATCC 56472 / CBS 6340 / NRRL Y-8284))
Explore C5DEB9 
Go to UniProtKB:  C5DEB9
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Atg17CF413Lachancea thermotolerans CBS 6340Mutation(s): 0 
Gene Names: KLTH0D15642g
Find proteins for C5DFJ6 (Lachancea thermotolerans (strain ATCC 56472 / CBS 6340 / NRRL Y-8284))
Explore C5DFJ6 
Go to UniProtKB:  C5DFJ6
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.06 Å
  • R-Value Free: 0.336 
  • R-Value Work: 0.303 
  • R-Value Observed: 0.305 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 144.37α = 90
b = 64.2β = 110.79
c = 184.21γ = 90
Software Package:
Software NamePurpose
HKL-2000data collection
SOLVEphasing
REFMACrefinement
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-12-26
    Type: Initial release
  • Version 1.1: 2013-01-09
    Changes: Database references
  • Version 1.2: 2018-01-10
    Changes: Source and taxonomy, Structure summary
  • Version 1.3: 2018-01-24
    Changes: Structure summary