BioID reveals an ATG9A interaction with ATG13-ATG101 in the degradation of p62/SQSTM1 clusters

ABSTRACT: ATG9A, the only multi-pass transmembrane protein among core ATG proteins, is an essential regulator of autophagy, yet its regulatory mechanisms and network of interactions are poorly understood. Through quantitative BioID proteomics, we identify a network of ATG9A interactions that includes members of the ULK1 complex and regulators of membrane fusion and vesicle trafficking, including the TRAPP, EARP, GARP, exocyst, AP-1 and AP-4 complexes. These interactions mark pathways of ATG9A trafficking through ER, Golgi and endosomal systems. In exploring these data, we find that ATG9A interacts with components of the ULK1 complex, particularly ATG13 and ATG101. Using knock-out/reconstitution and split-mVenus approaches to capture the ATG13-ATG101 dimer, we find that ATG9A interacts with ATG13-ATG

SUBMITTER: Ashari, R Kannangara 

PROVIDER: S-SCDT-EMBOR-2020-51136V1 | biostudies-other |

REPOSITORIES: biostudies-other