>tr|A0A832WHF1|A0A832WHF1_9EURY HEPN domain-containing protein OS=Methanocaldococcus jannaschii GN=HA335_00050 MEDSGFNIKYAKLFIKRAEEDLEVAKVLLKTNHYPDSVYHSQQCVEKAVKAVLILNGIIF RRHVVSGVFRNVIYEMKIEDSWKEKLLNLIPKIESLEEHWVMPRYPEPYFGELWNPLEEY TKEDAEECLKDAENVLEVIKDFLKEKYGLKQI