In yeast, 15 Apg proteins coordinate the formation of autophagosomes. Autophagy is a bulk degradation process induced by starvation in eukaryotic cells [1]. Apg6/Vps30p has two distinct functions in the autophagic process, either associated with the membrane or in a retrieval step of the carboxypeptidase Y sorting pathway [2].

1: The pre-autophagosomal structure organized by concerted functions of APG genes is essential for autophagosome formation. Suzuki K, Kirisako T, Kamada Y, Mizushima N, Noda T, Ohsumi Y; EMBO J 2001;20:5971-5981. PMID:11689437

2: Apg14p and Apg6/Vps30p form a protein complex essential for autophagy in the yeast, Saccharomyces cerevisiae. Kametaka S, Okano T, Ohsumi M, Ohsumi Y; J Biol Chem 1998;273:22284-22291. PMID:9712845