Abstract:
:Autophagy is the bulk degradation of cytosolic materials in lysosomes/vacuoles of eukaryotic cells. In the yeast Saccharomyces cerevisiae, 17 Atg proteins are known to be involved in autophagosome formation. Genome wide analyses have shown that Atg17 interacts with numerous proteins. Further studies on these interacting proteins may provide further insights into membrane dynamics during autophagy. Here, we identify Cis1/Atg31 as a protein that exhibits similar phenotypes to Atg17. ATG31 null cells were defective in autophagy and lost viability under starvation conditions. Localization of Atg31 to pre-autophagosomal structures (PAS) was dependent on Atg17. Coimmunoprecipitation experiments indicated that Atg31 interacts with Atg17. Together, Atg31 is a novel protein that, in concert with Atg17, is required for proper autophagosome formation.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Kabeya Y,Kawamata T,Suzuki K,Ohsumi Ydoi
10.1016/j.bbrc.2007.02.150subject
Has Abstractpub_date
2007-05-04 00:00:00pages
405-10issue
2eissn
0006-291Xissn
1090-2104pii
S0006-291X(07)00437-8journal_volume
356pub_type
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