sp|B7GR18|RUVB_BIFLS Holliday junction branch migration complex subunit RuvB OS=Bifidobacterium longum subsp. infantis (strain ATCC 15697 / DSM 20088 / JCM 1222 / NCTC 11817 / S12) OX=391904 GN=ruvB PE=3 SV=1