>TIGR02773 addB_Gpos ATP-dependent nuclease subunit B; InterPro: IPR014140 DNA repair is accomplished by several different systems in prokaryotes. Recombinational repair of double-stranded DNA breaks involves the RecBCD pathway in some lineages, and AddAB (also called RexAB) in others. AddA is conserved between the firmicutes and the alphaproteobacteria, while its partner protein (RexB) is not. This entry describes the ATP-dependent nuclease subunit B (AddB/RexB) protein as found Bacillus subtilis and related species. Although the RexB protein of Streptococcus and Lactococcus is considered to be orthologous and functionally equivalent, merely named differently, all members of this protein family have a P-loop nucleotide binding motif GxxGxGK[ST] at the N-terminus, unlike RexB proteins, and a CxxCxxxxxC motif at the C-terminus, both of which may be relevant to function..

Probab=99.64 E-value=3.2e-14 Score=112.93 Aligned_cols=176 Identities=17% Similarity=0.110 Sum_probs=98.6 Q ss_pred CCCCCCHHHHHCCCHHHHHHCCC--CCCCC---HHHHHHHHHHHHHHHHHHCCCCCCCCCCCCCCCCCCCHHH------- Q ss_conf 61842367787183238862138--99989---8899989999999999724576534322010456453775------- Q gi|254780124|r 6 FLSASSSHRWLKCPIAPTLESKI--PQTTS---IYASEGTFAHNLLAHCLEQGVDAETVSHQKLTFENDTRIV------- 73 (388) Q Consensus 6 ~LSpSs~~rwl~CP~s~~Le~~~--pd~~S---~aA~~GT~~H~llE~~l~~~l~~~~~~~~~~~~~~~~~~~------- 73 (388) T Consensus 801 ~~SVSRlE~Y~~CpF~hfa~yGLkl~ER~~Y~L~apDlG~~fH~~L~~I-s~~l~~e~Ldw~~L~k~~c~~~~~~ave~l 879 (1192) T TIGR02773 801 QASVSRLEKYNACPFAHFAQYGLKLKERKIYKLEAPDLGQLFHEALKEI-SDELKEEELDWSDLTKEQCRALANEAVEEL 879 (1192) T ss_pred EEEEECCHHHCCCCHHHHHHCCCCCCCCCCCCCCCCCHHHHHHHHHHHH-HHHHHHCCCCCCCCCHHHHHHHHHHHHHHH T ss_conf 2344010000178325565025320025525679963678999999999-999962378701147689999999999876 Q ss_pred ----H------HHHHHHHHHHHHHH-----------HCCCCCCEEEEEEEEEEECC----C------------EEEEEEE Q ss_conf ----7------88999999999998-----------50378736887755320004----4------------0589999 Q gi|254780124|r 74 ----D------TEMASSVSMVLAYV-----------RTFSGPFLSETEVPLEPFTT----E------------PGATGTA 116 (388) Q Consensus 74 ----~------~e~~~~v~~~~~~~-----------r~~~~~~~ve~E~~~~~~~~----~------------~~~~Gti 116 (388) T Consensus 880 ~p~~q~~IL~SS~Ry~Y~~~rl~~i~~ra~~vl~Eq~K~S~F~P~g~E~~FG~~~~~se~~ppl~~~L~~G~~~~L~GRI 959 (1192) T TIGR02773 880 VPKIQHEILLSSKRYRYVQKRLKRIVTRAVKVLSEQAKRSKFVPVGLELGFGFGGDNSEELPPLKLILKNGEELKLRGRI 959 (1192) T ss_pred HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCEEEEEEECCCCCCCCCCCCCCCCCCCCCCEEEEECCE T ss_conf 34534776223467899999999999999999998753278721224541367989875678732232688767873210 Q ss_pred EEEEEE---CCE-EEEEEEECCCCCC------CCCCCCHHHHHHHHHHHHH----C--CCCCCCCCEEEEEEEEEECCCC Q ss_conf 999985---997-9999811368876------7446687999999999984----3--8356765138999998304887 Q gi|254780124|r 117 DILIFN---STQ-WIIVDFKYGAGVP------VKAENNTQLMLYACGALHQ----Y--GDIFGRPEALTLTIIQPRVRTG 180 (388) Q Consensus 117 D~I~~~---dg~-l~IiDyKtGk~~~------v~a~~n~QL~lYALgA~~~----~--~~~~~~~~~v~~~I~qpr~~~~ 180 (388) T Consensus 960 DRvD~~e~e~~~ylRIIDYKSsnPsk~LDL~~VYYGl~LQmLtYLD~~l~~s~~~~~lg~~a~PaGvLYFhihdp~~~a~ 1039 (1192) T TIGR02773 960 DRVDKAEKEDETYLRIIDYKSSNPSKKLDLTEVYYGLALQMLTYLDIVLTNSEKWLKLGNQAKPAGVLYFHIHDPIVSAK 1039 (1192) T ss_pred EEEEHCCCCCCEEEEEEEECCCCCCCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCCCEEEEEEECCCEEEEC T ss_conf 00211015898148888703788873543577666899999999999998589999710654776045566437233007 Q ss_pred CC Q ss_conf 75 Q gi|254780124|r 181 SP 182 (388) Q Consensus 181 ~~ 182 (388) T Consensus 1040 ~~ 1041 (1192) T TIGR02773 1040 KD 1041 (1192) T ss_pred CC T ss_conf 88

HHsearch alignment for GI: 254780124 and conserved domain: TIGR02773