>sp|A6VHH1|SPEH_METM7 S-adenosylmethionine decarboxylase proenzyme OS=Methanococcus maripaludis GN=speH MKQLGKHIILELWGCENQALDDQPGIEKMLVDAVKACGATLICVKTHKFSPQGVTGVAVL SESHISIHTWPELGYAAMDVFTCGEHVAPHDTIPEIQKFLKPEKIDVMDIKRGIIEVDEV KE