2KQ7

Solution structure of the Autophagy-Related Protein Atg8


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 15 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Solution structure of Atg8 reveals conformational polymorphism of the N-terminal domain

Schwarten, M.Stoldt, M.Mohrluder, J.Willbold, D.

(2010) Biochem.Biophys.Res.Commun. --: --

  • DOI: 10.1016/j.bbrc.2010.04.043

  • PubMed Abstract: 
  • During autophagy a crescent shaped like membrane is formed, which engulfs the material that is to be degraded. This membrane grows further until its edges fuse to form the double membrane covered autophagosome. Atg8 is a protein, which is required fo ...

    During autophagy a crescent shaped like membrane is formed, which engulfs the material that is to be degraded. This membrane grows further until its edges fuse to form the double membrane covered autophagosome. Atg8 is a protein, which is required for this initial step of autophagy. Therefore, a multistage conjugation process of newly synthesized Atg8 to phosphatidylethanolamine is of critical importance. Here we present the high resolution structure of unprocessed Atg8 determined by nuclear magnetic resonance spectroscopy. Its C-terminal subdomain shows a well-defined ubiquitin-like fold with slightly elevated mobility in the pico- to nanosecond timescale as determined by heteronuclear NOE data. In comparison to unprocessed Atg8, cleaved Atg8(G116) shows a decreased mobility behaviour. The N-terminal domain adopts different conformations within the micro- to millisecond timescale. The possible biological relevance of the differences in dynamic behaviours between both subdomains as well as between the cleaved and uncleaved forms is discussed.


    Organizational Affiliation

    Institut für Strukturbiologie und Biophysik, ISB-3, Forschungszentrum Jülich, 52425 Jülich, Germany. m.schwarten@fz-juelich.de




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Autophagy-related protein 8
A
119Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: ATG8 (APG8, AUT7, CVT5)
Find proteins for P38182 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P38182
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 15 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 2KQ7 Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-05-05
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance