Elucidation of the Far3- and Far7-mediated regulatory mechanism of mitochondrial autophagy in yeast

本研究探讨线粒体自噬，维持线粒体的质量和数量。Far复合体与受体蛋白Atg32相互作用，通过磷酸化Atg32促进有丝分裂。然而，这种相互作用的机制尚不清楚。研究发现Far3/7不直接与Atg32相互作用，但它们是Far8-Atg32相互作用所必需的。Far3/7磷酸化位点、表达、降解和一组参与自噬的激酶的替代突变体不影响Atg32-Far复合物的相互作用。该研究建议探索Far复合物和Atg32的其他已知相互作用伙伴，研究其他翻译后修饰的作用，以及细胞应激和营养可用性对Atg32- far8相互作用的影响。

This study investigates mitophagy, which maintains mitochondrial quality and quantity. The Far complex interacts with a receptor protein Atg32 to facilitate mitophagy by phosphorylating it. However, the mechanism of this interaction is still unclear. The study found that Far3/7 do not directly interact with Atg32, but they are needed for Far8-Atg32 interaction. Substitution mutants of Far3/7 phosphorylation sites, expression, degradation, and a set of kinases involved in autophagy did not influence the Atg32-Far complex interaction. The study suggests exploring other known interacting partners of the Far complex and Atg32 and investigating the role of other post-translational modifications, as well as the effect of cellular stress and nutrient availability on the Atg32-Far8 interaction.