apg9Autophagy protein Apg9. In yeast, 15 Apg proteins coordinate the formation of autophagosomes. Autophagy is a bulk degradation process induced by starvation in eukaryotic cells. Apg9 playsThe Apg2 protein interacts with Apg9. A, the apg9Δ (JKY007) strain was transformed with the ProtA or ProtA-APG9 plasmids as indicated. Wild type (SEY6210) or