3
nature research | reporting summary
April 2018
sigma-aldrich/docs/Sigma/Datasheet/6/a9917dat.pdf; anti-rabbit IgG: https://www.sigmaaldrich.com/content/dam/sigma-
aldrich/docs/Sigma/Datasheet/6/a0545dat.pdf; validation data for Anti-Atg13-S428/9-P are provided in Nat Struct Mol Biol 21,
513, 2014; validation data for anti-Atg1-pThr226 are provided in extended data Fig. 2b