Online Now: TRIM21 induces selective autophagy of viruses and bacteria Online now:
Rhinesmith et al. describe an intracellular antimicrobial mechanism called “antibody-directed xenophagy” (ADX). In ADX, the E3 ubiquitin ligase TRIM21 prevents infection by intercepting antibody-coated viruses/bacteria in the cytosol and orchestrating their destruction via selective autophagy. The authors hypothesize that ADX may be co-opted for targeted protein degradation.