>sp|Q66DV2|EX7S_YERPS Exodeoxyribonuclease 7 small subunit OS=Yersinia pseudotuberculosis serotype I GN=xseB MPKKAASPEIKAASFETSLSELEQIVTRLESGELPLEDALNEFERGVQLARQGQQTLLQA EQRVQILLSDDVDAPLKPFTPDTE