>sp|Q83SQ2|APAH_SHIFL Bis(5'-nucleosyl)-tetraphosphatase, symmetrical OS=Shigella flexneri GN=apaH MATYLIGDVHGCYDELIALLHKVEFTPGKDTLWLTGDLVARGPGSLDVLRYVKSLGDSVR LVLGNHDLHLLAVFAGISRNKPKDRLTPLLEAPDADELLNWLRRQPLLQIDEEKKLVMAH AGITPQWDLQTAKECARDVEAVLSSDSYPFFLDAMYGDMPNNWSPELRGLGRLRFITNAF TRMRFCFPNGQLDMYSKESPEEAPAPLKPWFAIPGPVAEEYSIAFGHWASLEGKGTPEGI YALDTGCCWGGSLTCLRWEDKQYFVQPSNRHKDLGEAAAS