>sp|B7MNQ8|APAH_ECO81 Bis(5'-nucleosyl)-tetraphosphatase, symmetrical OS=Escherichia coli O81 GN=apaH MATYLIGDVHGCYDELIALLHKVEFTPGKDTLWLTGDLVARGPGSLDVLRYVKSLGDSVR LVLGNHDLHLLAVFAGISRNKPKDRLTPLLEAPDADELLNWLRRQPLLQIDEEKKLVMAH AGITPQWDLQTAKECARDVEAVLSSDSYPFFLDAMYGDMPNNWSPELRGLGRLRFITNAF TRMRFCFPNGQLDMYSKESPEEAPAPLKPWFAIPGPVAEEYNIAFGHWASLEGKGTPEGI YALDTGCCWGGTLTCLRWEDKQYFVQPSNRHKDLSEGEAVAS