>tr|E1IPH3|E1IPH3_ECOLX Exodeoxyribonuclease 7 small subunit OS=Escherichia coli MS 145-7 GN=xseB MPKKNEAPASFEKALSELEQIVTRLESGDLPLEEALNEFERGVQLARQGQAKLQQAEQRV QILLSDNEDASLTPFTPDNE