An essential autophagy factor Atg13 has a large intrinsically disordered region (IDR)
The IDR of Atg13 contains two distinct regions binding intermolecularly to Atg17
Tethering two Atg17 molecules by Atg13 leads to supramolecular Atg1 complex assembly
The Atg13-mediated supramolecular assembly is responsible for autophagy initiation