sp|Q9K907|PRPE_HALH5 Bis(5'-nucleosyl)-tetraphosphatase PrpE [asymmetrical] OS=Halalkalibacterium halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125) OX=272558 GN=prpE PE=3 SV=1