>sp|Q68XC8|PSD_RICTY Phosphatidylserine decarboxylase proenzyme OS=Rickettsia typhi GN=psd MKQYNDLFKIIHREGYIFIASFALVSFLLASFNEKLGCIGFIATIWCIYFFRNPDRFVPI SDDLVISPADGIIQEIKEASPPPELGLGDLEMIRVSIFLNIFNIHVNRIPANGKILALHY NPGKFFNASLDKASLYNERQSVLMETDQGQKIVFVQIAGLIARRIVCDLEEDNEVKMGER YGIIRFGSRVDVYLPLKTALLVSKGQTAIGGETIIADFGRKKTEEFKFERK