Ubiquitin-like protein ATG12 - O94817 (ATG12_HUMAN)


Protein Feature View of PDB entries mapped to a UniProtKB sequence  

  • Number of PDB entries for O94817: 3
Ubiquitin-like protein involved in autophagy vesicles formation. Conjugation with ATG5 through a ubiquitin-like conjugating system involving also ATG7 as an E1-like activating enzyme and ATG10 as an E2-like conjugating enzyme, is essential for its function. The ATG12-ATG5 conjugate acts as an E3-like enzyme which is required for lipidation of ATG8 family proteins and their association to the vesicle membranes. The ATG12-ATG5 conjugate also regulates negatively the innate antiviral immune response by blocking the type I IFN production pathway through direct association with RARRES3 and MAVS. Plays also a role in translation or delivery of incoming viral RNA to the translation apparatus. (data source: UniProt  )
Subunit structure
Forms a conjugate with ATG5. The ATG12-ATG5 conjugate forms a complex with several units of ATG16L. Interacts with ATG3, ATG7 and ATG10. ATG12-ATG5 also interacts with MAVS, MGA, RARRES3 and TECPR1. (data source: UniProt  )
Shares weak sequence similarity with ubiquitin family, but contains an 'ubiquitin superfold' and the C-terminal Gly is required for isopeptide linkage. (data source: UniProt  )
Isoforms: 2, currently showing only the 'canonical' sequence.
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Data in green originates from UniProtKB  
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  • Blue: hydrophilic.
Data in lilac represent the genomic exon structure projected onto the UniProt sequence.
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  • Secstruc: Secondary structure projected from representative PDB entries onto the UniProt sequence.
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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).
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