4GSK

Crystal structure of an Atg7-Atg10 crosslinked complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.236 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Noncanonical E2 recruitment by the autophagy E1 revealed by Atg7-Atg3 and Atg7-Atg10 structures.

Kaiser, S.E.Mao, K.Taherbhoy, A.M.Yu, S.Olszewski, J.L.Duda, D.M.Kurinov, I.Deng, A.Fenn, T.D.Klionsky, D.J.Schulman, B.A.

(2012) Nat.Struct.Mol.Biol. 19: 1242-1249

  • DOI: 10.1038/nsmb.2415
  • Primary Citation of Related Structures:  4GSJ, 4GSL

  • PubMed Abstract: 
  • Core functions of autophagy are mediated by ubiquitin-like protein (UBL) cascades, in which a homodimeric E1 enzyme, Atg7, directs the UBLs Atg8 and Atg12 to their respective E2 enzymes, Atg3 and Atg10. Crystallographic and mutational analyses of yea ...

    Core functions of autophagy are mediated by ubiquitin-like protein (UBL) cascades, in which a homodimeric E1 enzyme, Atg7, directs the UBLs Atg8 and Atg12 to their respective E2 enzymes, Atg3 and Atg10. Crystallographic and mutational analyses of yeast (Atg7-Atg3)(2) and (Atg7-Atg10)(2) complexes reveal noncanonical, multisite E1-E2 recognition in autophagy. Atg7's unique N-terminal domain recruits distinctive elements from the Atg3 and Atg10 'backsides'. This, along with E1 and E2 conformational variability, allows presentation of 'frontside' Atg3 and Atg10 active sites to the catalytic cysteine in the C-terminal domain from the opposite Atg7 protomer in the homodimer. Despite different modes of binding, the data suggest that common principles underlie conjugation in both noncanonical and canonical UBL cascades, whereby flexibly tethered E1 domains recruit E2s through surfaces remote from their active sites to juxtapose the E1 and E2 catalytic cysteines.


    Organizational Affiliation

    Department of Structural Biology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Ubiquitin-like modifier-activating enzyme ATG7
A, B
615Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: ATG7 (APG7, CVT2)
Find proteins for P38862 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: ATG7
Go to UniProtKB:  P38862
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Ubiquitin-like-conjugating enzyme ATG10
Y, Z
173Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: ATG10 (APG10)
EC: 6.3.2.-
Find proteins for Q07879 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to Gene View: ATG10
Go to UniProtKB:  Q07879
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.9 Å
  • R-Value Free: 0.285 
  • R-Value Work: 0.236 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 120.556α = 90.00
b = 146.186β = 90.00
c = 108.442γ = 90.00
Software Package:
Software NamePurpose
HKL-2000data reduction
PHASERphasing
SCALEPACKdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction
HKL-2000data scaling
DENZOdata reduction
HKL-2000data collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-11-14
    Type: Initial release
  • Version 1.1: 2012-11-28
    Type: Database references
  • Version 1.2: 2012-12-19
    Type: Database references
  • Version 1.3: 2017-11-15
    Type: Refinement description