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ATG21 protein (Saccharomyces cerevisiae) - STRING interaction network
"ATG21" - Phosphoinositide binding protein required for vesicle formation in the cytoplasm-to-vacuole targeting in Saccharomyces cerevisiae
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Predicted Interactions
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ATG21Phosphoinositide binding protein required for vesicle formation in the cytoplasm-to-vacuole targeting (Cvt) pathway; binds both phosphatidylinositol (3,5)-bisphosphate and phosphatidylinositol 3-phosphate; WD-40 repeat protein; Required for cytoplasm to vacuole transport (Cvt) vesicles formation and mitophagy. Involved in binding of phosphatidylethanolamine to ATG8 and in recruitment of ATG8 and ATG5 to the pre-autophagosomal structure. Protects ATG8 from ARG4- mediated cleavage. Essential for maturation of proaminopeptidase I (496 aa)    
Predicted Functional Partners:
ATG7
Autophagy-related protein and dual specificity member of the E1 family of ubiquitin-activating enzymes; mediates the conjugation of Atg12p with Atg5p and Atg8p with phosphatidylethanolamine, required steps in autophagosome formation; E1-like activating enzyme involved in the 2 ubiquitin- like systems required for cytoplasm to vacuole transport (Cvt) and autophagy. Activates ATG12 for its conjugation with ATG5 and ATG8 for its conjugation with phosphatidylethanolamine. Both systems are needed for the ATG8 association to Cvt vesicles and autophagosomes membranes. Autophagy is essential f [...] (630 aa)
     
 
  0.956
ATG9
Transmembrane protein involved in forming Cvt and autophagic vesicles; cycles between the phagophore assembly site (PAS) and other cytosolic punctate structures, not found in autophagosomes; may be involved in membrane delivery to the PAS; Involved in autophagy and cytoplasm to vacuole transport (Cvt) vesicle formation. Plays a key role in the organization of the preautophagosomal structure/phagophore assembly site (PAS), the nucleating site for formation of the sequestering vesicle. Required for mitophagy. Cycles between the PAS and the cytoplasmic vesicle pool and may participate in [...] (997 aa)
     
 
  0.955
ATG12
Conserved ubiquitin-like modifier involved in autophagy and the Cvt pathway; conjugated to Atg5p to form a complex involved in Atg8p lipidation; Atg12p-Atg5p also forms a complex with Atg16p that is required for autophagosome formation; Ubiquitin-like protein involved in cytoplasm to vacuole transport (Cvt), autophagy vesicles formation, mitophagy, and nucleophagy. 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 a [...] (186 aa)
       
 
  0.954
VPS30
Subunit of phosphatidylinositol (PtdIns) 3-kinase complexes I and II; Complex I is essential in autophagy and Complex II is required for vacuolar protein sorting; ortholog of the higher eukaryotic gene Beclin 1; Required for cytoplasm to vacuole transport (Cvt), autophagy, nucleophagy, and mitophagy, as a part of the autophagy- specific VPS34 PI3-kinase complex I. This complex is essential to recruit the ATG8-phosphatidylinositol conjugate and the ATG12-ATG5 conjugate to the pre-autophagosomal structure. Also involved in endosome-to-Golgi retrograde transport as part of the VPS34 PI3- [...] (557 aa)
     
 
  0.949
ATG4
Conserved cysteine protease required for autophagy; cleaves Atg8p to a form required for autophagosome and Cvt vesicle generation; Cysteine protease 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. Cleaves the C-terminal amino acid of ATG8 to reveal a C-terminal glycine. ATG8 ubi [...] (494 aa)
     
 
  0.946
ATG2
Peripheral membrane protein required for vesicle formation during autophagy, pexophagy, and the cytoplasm-to-vaucole targeting (Cvt) pathway; involved in Atg9p cycling between the phagophore assembly site and mitochondria; Required for cytoplasm to vacuole transport (Cvt) vesicle and autophagosome completion. Necessary for the localization of ATG18 to the preautophagosomal structure (PAS) and the binding of ATG18 to ATG9. Involved in correct ATG9 trafficking through the preautophagosomal structure and in peroxisome degradation. ATG2 is the most downstream ATG protein in the preautophag [...] (1592 aa)
     
 
  0.944
SNX4
Sorting nexin, involved in retrieval of late-Golgi SNAREs from post-Golgi endosomes to the trans-Golgi network and in cytoplasm to vacuole transport; contains a PX phosphoinositide-binding domain; forms complexes with Snx41p and with Atg20p; Sorting nexin, involved in the separation or division of vacuoles throughout the entire life cycle of the cells (By similarity). Involved in retrieval of late-Golgi SNAREs from post- Golgi endosomes to the trans-Golgi network, for cytoplasm to vacuole transport (Cvt), mitophagy, and pexophagy. Involved in proper sorting of the v-SNARE protein SNC1 (423 aa)
     
 
  0.942
ATG5
Conserved protein involved in autophagy and the Cvt pathway; undergoes conjugation with Atg12p to form a complex involved in Atg8p lipidation; conjugated Atg12p also forms a complex with Atg16p that is essential for autophagosome formation; Involved in cytoplasm to vacuole transport (Cvt) and autophagic vesicle formation. Autophagy is essential for maintenance of amino acid levels and protein synthesis under nitrogen starvation. Required for selective autophagic degradation of the nucleus (nucleophagy). Also required for mitophagy, which eliminates defective or superfluous mitochondria [...] (294 aa)
     
 
  0.938
ATG19
Receptor protein specific for the cytoplasm-to-vacuole targeting (Cvt) pathway; delivers cargo proteins aminopeptidase I (Lap4p) and alpha-mannosidase (Ams1p) to the phagophore assembly site for packaging into Cvt vesicles; Cargo-receptor protein involved in the cytoplasm to vacuole transport (Cvt) and in autophagy. Recognizes cargo proteins, such as APE4, LAP3, LAP4 and AMS1 and delivers them to the pre-autophagosomal structure for eventual engulfment by the autophagosome and targeting to the vacuole. Involved in the organization of the preautophagosomal structure (PAS). ATG19 associa [...] (415 aa)
       
 
  0.914
ATG29
Autophagy-specific protein that is required for recruitment of other ATG proteins to the pre-autophagosomal structure (PAS); interacts with Atg17p and localizas to the PAS in a manner interdependent with Atg17p and Cis1p; not conserved; Plays a role in autophagy. Functions at the preautophagosomal structure (PAS) in order to form normal autophagosomes under starvation conditions. Plays also a role in mitophagy and regulation of filamentous growth (213 aa)
       
 
  0.911
Your Current Organism:
Saccharomyces cerevisiae
NCBI taxonomy Id: 4932
Other names: Candida robusta, Pachytichospora, S. cerevisiae, Saccharomyces, Saccharomyces capensis, Saccharomyces cerevisiae, Saccharomyces italicus, Saccharomyces oviformis, Saccharomyces uvarum var. melibiosus, lager beer yeast, yeast
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