tRNA restriction by anticodon nucleases underlies cellular stress responses and self-nonself discrimination in a wide range of taxa. Introduction The yeast secretes a tRNA anticodon nuclease toxin encoded by a resident cytoplasmic linear DNA “killer” plasmid (Satwika et al. 2012 The secreted form of the ribotoxin is a complex of PaOrf1 and PaOrf2 subunits that… Continue reading tRNA restriction by anticodon nucleases underlies cellular stress responses and self-nonself