HEPN–MNT is a bacterial type VII toxin-antitoxin (TA) system, comprising the HEPN toxin and the MNT antitoxin. Crystal structures and functional assays of the HEPN–MNT module suggest that HEPN is a metal-dependent RNase and identify its active site residues and regulatory mechanism.
- Chenglong Jin
- Cha-Hee Jeon
- Bong-Jin Lee