>tr|A0A509CH40|A0A509CH40_9ENTR Exodeoxyribonuclease 7 small subunit OS=Salmonella sp. NCTC 6947 GN=xseB MPKKNEAPASFETALSELEHIVTRLESGDLPLEDALNEFERGVQLARQGQAKLQQAEQRV QILLSDNEEASPEPFIADNE