>tr|A0A4D8S5D5|A0A4D8S5D5_METPR Arginine decarboxylase proenzyme OS=Metallosphaera prunae GN=speD MSEQVTFQSHEDRIVGKHVFGNLYDIDPEDLNNEQLLKDLVLKAVEIAHMNLVEAKSWSF GGKKGGVSVIALIEESHIALHTWNEYNYATLDVYTCGEDSDPQAAFKFIVEALKPRRYQV FFADRSSS