>sp|A1WYI6|EX7S_HALHL Exodeoxyribonuclease 7 small subunit OS=Halorhodospira halophila GN=xseB MSETDSQETAPQGDLPDFERSVAELEALIERMERGEQTLEEALRDFERGIHLTRHCQKAL SAAEQKVAILLENSEDGDVGPFRPDDS