In yeast, 15 Apg proteins coordinate the formation of autophagosomes. Autophagy is a bulk degradation process induced by starvation in eukaryotic cells [1]. The Apg12 system is one of the ubiquitin-like protein conjugation systems conserved in eukar ...
In yeast, 15 Apg proteins coordinate the formation of autophagosomes. Autophagy is a bulk degradation process induced by starvation in eukaryotic cells [1]. The Apg12 system is one of the ubiquitin-like protein conjugation systems conserved in eukaryotes. It was first discovered in yeast during systematic analyses of the apg mutants defective in autophagy. Covalent attachment of Apg12-Apg5 is essential for autophagy [2,3,4].
Autophagy protein ATG5, alpha-helical bundle region
Autophagy protein ATG5 is involved in autophagic vesicle formation. It is conjugated with ATG12, acting as an E3-like ubiquitin enzyme required for lipidation of ATG8 family proteins and their association to the vesicle membranes. ATG5 comprises two ...
Autophagy protein ATG5 is involved in autophagic vesicle formation. It is conjugated with ATG12, acting as an E3-like ubiquitin enzyme required for lipidation of ATG8 family proteins and their association to the vesicle membranes. ATG5 comprises two ubiquitin-like domains (UblA and UblB) that flank a helix-rich domain. This domain represents the alpha-helical bundle region (HBR) of AT5 which consists of three alpha helices [1,2]. This region contains the Lys residue required for conjugation with ATG12 [1].
This is the N-terminal ubiquitin-like domain, termed UblA, from autophagy protein ATG5 [1,2]. ATG5 comprises two ubiquitin-like domains (UblA and UblB) that flank a helix-rich domain (HBR). Both UblA and UblB comprise a five-stranded sheet and two-he ...
This is the N-terminal ubiquitin-like domain, termed UblA, from autophagy protein ATG5 [1,2]. ATG5 comprises two ubiquitin-like domains (UblA and UblB) that flank a helix-rich domain (HBR). Both UblA and UblB comprise a five-stranded sheet and two-helices.
ATG5 is directly required for the import of aminopeptidase I via the cytoplasm-to-vacuole targeting pathway [1]. ATG5 is conjugated to ATG12; this conjugate exhibits E3 ligase-like activity which facilitates the lipidation of members of the LC3 famil ...
ATG5 is directly required for the import of aminopeptidase I via the cytoplasm-to-vacuole targeting pathway [1]. ATG5 is conjugated to ATG12; this conjugate exhibits E3 ligase-like activity which facilitates the lipidation of members of the LC3 family, and therefore autophagosome formation [2]. ATG5 comprises N- and C-terminal ubiquitin-like domains (UblA and UblB) that flank the helical-rich region (HBR). This is the UblB domain, found at the C-terminal [2,3].
