>tr|A0A4P8C8H8|A0A4P8C8H8_ECOLX Exodeoxyribonuclease 7 small subunit OS=Escherichia coli O145:NM GN=xseB MPKKNEAPASFEKALSELEQIVTRLESGDLPLEEALNEFERGVQLARQGQAKLQQAEQRV QILLSDNEDASLTPFTPDNE