>sp|C3NES3|SPEH_SACI7 S-adenosylmethionine decarboxylase proenzyme OS=Saccharolobus islandicus GN=speH MGVELAFPKVVGKQVYGSLYDCDENVLKDTKRLEQIIKEAADVGNMNILDIKSWKIGEGV SVVAIILESHITIHTWPEYKFATVDVYSCGPHTSPLKAFNYIVEKLGAKKYTINEADRSS EF