Fig. 9: The proposed mechanism of BBM-mediated blockade of autophagosome-lysosome fusion.

Under normal conditions, SNAP29 interacts with STX17 and VAMP8, which drives autophagosome-lysosome fusion. While upregulation of BNIP3 mediated by BBM, can interacts with SNAP29, which prevents the interaction between SNAP29 and VAMP8, thus blocks autophagosome-lysosome fusion