POP-OUT | CLOSE
 

Autophagy-related protein 3 - P40344 (ATG3_YEAST)

 

Protein Feature View of PDB entries mapped to a UniProtKB sequence  

Number of PDB entries for P40344: 3
 
Function
E2 conjugating enzyme required for the cytoplasm to vacuole transport (Cvt) and autophagy. Required for selective autophagic degradation of the nucleus (nucleophagy) as well as for mitophagy which contributes to regulate mitochondrial quantity and quality by eliminating the mitochondria to a basal level to fulfill cellular energy requirements and preventing excess ROS production. Responsible for the E2-like covalent binding of phosphatidylethanolamine to the C-terminal Gly of ATG8. The ATG12-ATG5 conjugate plays a role of an E3 and promotes the transfer of ATG8 from ATG3 to phosphatidylethanolamine (PE). This step is required for the membrane association of ATG8. The formation of the ATG8-phosphatidylethanolamine conjugate is essential for autophagy and for the cytoplasm to vacuole transport (Cvt). The ATG8-PE conjugate mediates tethering between adjacent membranes and stimulates membrane hemifusion, leading to expansion of the autophagosomal membrane during autophagy. (data source: UniProt  )
Subunit structure
Monomer. Interacts with ATG8 through an intermediate thioester bond between Cys-234 and the C-terminal Gly of ATG8. Also interacts with the 40 amino acid C-terminal region of the E1-like ATG7 enzyme. Interacts also with the ATG12-ATG5 conjugate. (data source: UniProt  )
Domain
The handle region (HR) contains the ATG8 interaction motif (AIM) and mediates binding to ATG8. It is crucial for the cytoplasm-to-vacuole targeting pathway. (data source: UniProt  )
UniProtKB:
Species: 
Gene names: Gene View for ATG3 APG3 AUT1 YNR007C N2040
Length:
Display Options
Zoom
min
max
Sort by
Color by
 
Legend

The Protein Feature View requires a browser that supports SVG (Scalable Vector Graphics). Mouse over tracks and labels for more information.

Data origin/color codes
The vertical color bar on the left side indicates data provenance.
Data in green originates from UniProtKB  
Data in yellow originates from Pfam  , by interacting with the HMMER3 web site  
Data in orange originates from the SCOP   (version 1.75) and SCOPe   (version 2.04) classifications.
Data in grey has been calculated using BioJava  . Protein disorder predictions are based on JRONN (Troshin, P. and Barton, G. J. unpublished), a Java implementation of RONN  
  • Red: potentially disorderd region
  • Blue: probably ordered region.
Hydropathy has been calculated using a sliding window of 15 residues and summing up scores from standard hydrophobicity tables.
  • Red: hydrophobic
  • Blue: hydrophilic.
Data in lilac represent the genomic exon structure projected onto the UniProt sequence.
Data in blue originates from PDB
  • Secstruc: Secondary structure projected from representative PDB entries onto the UniProt sequence.
Data in red indicates combined ranges of Homology Models from SBKB   and the Protein Model Portal  

The PDB to UniProt mapping is based on the data provided by the EBI SIFTS project. See also Velankar et al., Nucleic Acids Research 33, D262-265 (2005).