>tr|A0A2S7SMZ1|A0A2S7SMZ1_ESCFE Exodeoxyribonuclease 7 small subunit OS=Escherichia fergusonii GN=xseB MPKKNEAPASFEKALSELEQIVTRLESGDLPLEEALNEFERGVQLARQGQAKLQQAEQRV QILLSDNEDASLTPFTPDNE