4GDK

Crystal Structure of Human Atg12~Atg5 Conjugate in Complex with an N-terminal Fragment of Atg16L1


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.180 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structure of the human ATG12~ATG5 conjugate required for LC3 lipidation in autophagy.

Otomo, C.Metlagel, Z.Takaesu, G.Otomo, T.

(2013) Nat Struct Mol Biol 20: 59-66

  • DOI: 10.1038/nsmb.2431
  • Primary Citation of Related Structures:  
    4GDK, 4GDL

  • PubMed Abstract: 
  • The autophagy factor ATG12~ATG5 conjugate exhibits E3 ligase-like activity which facilitates the lipidation of members of the LC3 family. The crystal structure of the human ATG12~ATG5 conjugate bound to the N-terminal region of ATG16L1, the factor that recruits the conjugate to autophagosomal membranes, reveals an integrated architecture in which ATG12 docks onto ATG5 through conserved residues ...

    The autophagy factor ATG12~ATG5 conjugate exhibits E3 ligase-like activity which facilitates the lipidation of members of the LC3 family. The crystal structure of the human ATG12~ATG5 conjugate bound to the N-terminal region of ATG16L1, the factor that recruits the conjugate to autophagosomal membranes, reveals an integrated architecture in which ATG12 docks onto ATG5 through conserved residues. ATG12 and ATG5 are oriented such that other conserved residues on each molecule, including the conjugation junction, form a continuous surface patch. Mutagenesis data support the importance of both the interface between ATG12 and ATG5 and the continuous patch for E3 activity. The ATG12~ATG5 conjugate interacts with the E2 enzyme ATG3 with high affinity through another surface location that is exclusive to ATG12, suggesting a different role of the continuous patch in E3 activity. These findings provide a foundation for understanding the mechanism of LC3 lipidation.


    Organizational Affiliation

    Department of Molecular Biology, The Scripps Research Institute, La Jolla, California, USA.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Ubiquitin-like protein ATG12A, D91Homo sapiensMutation(s): 0 
Gene Names: APG12APG12LATG12
UniProt & NIH Common Fund Data Resources
Find proteins for O94817 (Homo sapiens)
Explore O94817 
Go to UniProtKB:  O94817
PHAROS:  O94817
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Autophagy protein 5B, E275Homo sapiensMutation(s): 0 
Gene Names: APG5LASPATG5
UniProt & NIH Common Fund Data Resources
Find proteins for Q9H1Y0 (Homo sapiens)
Explore Q9H1Y0 
Go to UniProtKB:  Q9H1Y0
PHAROS:  Q9H1Y0
Protein Feature View
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Autophagy-related protein 16-1C, F36Homo sapiensMutation(s): 0 
Gene Names: APG16LATG16L1UNQ9393/PRO34307
UniProt & NIH Common Fund Data Resources
Find proteins for Q676U5 (Homo sapiens)
Explore Q676U5 
Go to UniProtKB:  Q676U5
PHAROS:  Q676U5
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download Ideal Coordinates CCD File 
G [auth B], H [auth E]SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.70 Å
  • R-Value Free: 0.236 
  • R-Value Work: 0.176 
  • R-Value Observed: 0.180 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 43.757α = 90
b = 113.153β = 90
c = 210.685γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
PHENIXrefinement
PDB_EXTRACTdata extraction

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2012-12-05
    Type: Initial release
  • Version 1.1: 2013-01-02
    Changes: Database references
  • Version 1.2: 2013-01-16
    Changes: Database references
  • Version 1.3: 2017-11-15
    Changes: Refinement description