>sp|B6YV04|SPEH_THEON S-adenosylmethionine decarboxylase proenzyme OS=Thermococcus onnurineus GN=speH METIGFHYVVEAAGCDPEILGNADKIRQIFLEAAKVGKMEVKASYFFKFSPTGVSGVVIV AESHISIHTWPEKGYAALDVYTCGTTADPEKAVDYILDKIKAQYAHVSEIKRGIEEDDET FTHMILTWEEKLERKNGDEKS