>cd03280 ABC_MutS2 MutS2 homologs in bacteria and eukaryotes. The MutS protein initiates DNA mismatch repair by recognizing mispaired and unpaired bases embedded in duplex DNA and activating endo- and exonucleases to remove the mismatch. Members of the MutS family also possess a conserved ATPase activity that belongs to the ATP binding cassette (ABC) superfamily. MutS homologs (MSH) have been identified in most prokaryotic and all eukaryotic organisms examined. Prokaryotes have two homologs (MutS1 and MutS2), whereas seven MSH proteins (MSH1 to MSH7) have been identified in eukaryotes. The homodimer MutS1 and heterodimers MSH2-MSH3 and MSH2-MSH6 are primarily involved in mitotic mismatch repair, whereas MSH4-MSH5 is involved in resolution of Holliday junctions during meiosis. All members of the MutS family contain the highly conserved Walker A/B ATPase domain, and many share a common mechanism of action. MutS1, MSH2-MSH3, MSH2-MSH6, and MSH4-MSH5 dimerize to form sliding clamps, a

Probab=100.00 E-value=0 Score=479.52 Aligned_cols=199 Identities=27% Similarity=0.491 Sum_probs=186.4 Q ss_pred EECCCCCHHHHHHHHHCCCCCEEEEEEEECCCCCCCCCEEEEEECCCCCCHHHHHHHHHHHHHHHHCCCCCCHH-HCCCC Q ss_conf 00004680588763102877044434563587777664399996778440789999999999999719853035-32068 Q gi|254780750|r 613 IVKDGRHPIVEKTLKQQSSKPFIANDCDLSCPNDKNSGKLWLLTGPNMGGKSTFLRQNALIVIMAQMGSYVPAS-YAHIG 691 (920) Q Consensus 613 ~i~~gRHPviE~~l~~~~~~~fVpNdi~l~~~~~~~~~~~~iiTGpNmgGKSt~lRqval~vilAQiG~fVPA~-~a~i~ 691 (920) T Consensus 1 ki~~~rHPll~~-----~~~~~V~Ndi~l~-----~~~~~~iiTGpN~sGKSt~lk~i~l~~iLAq~G~~vpa~~~~~~~ 70 (200) T cd03280 1 RLREARHPLLPL-----QGEKVVPLDIQLG-----ENKRVLVITGPNAGGKTVTLKTLGLLTLMAQSGLPIPAAEGSSLP 70 (200) T ss_pred CCCCCCCCEEEC-----CCCCEECCEEEEC-----CCCEEEEEECCCCCCCHHHHHHHHHHHHHHHHCCCEEECCCEECC T ss_conf 987772885975-----7895476258977-----993399998898775099999999999999977780011004726 Q ss_pred CCCEEEEEEECCCCCCCCCCHHHHHHHHHHHHHHHCCCCCEEEEECCCCCCCHHHHHHHHHHHHHHHHHHCCCEEEEECC Q ss_conf 22105676523766113853289999999999995899856999325889880567999999999999726984999748 Q gi|254780750|r 692 IVDKLFSRVGSADNLASGRSTFMVEMIETASILNQATNQSFVILDEIGRGTATLDGLSIAWATIEYLHETNRCRGLLATH 771 (920) Q Consensus 692 ~~D~IftRiGa~D~l~~g~STF~vEm~e~~~IL~~at~~SLVllDElGrGTst~DG~aiA~aile~l~~~~~~~~lfaTH 771 (920) T Consensus 71 ~~d~i~~~i~~~d~~~~~~S~F~~E~~~~~~il~~~~~~sLvliDE~~~gTn~~eg~~~a~a~l~~l~~~-~~~~i~tTH 149 (200) T cd03280 71 VFENIFADIGDEQSIEQSLSTFSSHMKNIARILQHADPDSLVLLDELGSGTDPVEGAALAIAILEELLER-GALVIATTH 149 (200) T ss_pred CCCEEEEEECCCCCHHHHHHHHHHHHHHHHHHHHHCCCCCEEEECCCCCCCCHHHHHHHHHHHHHHHHHC-CCEEEEECC T ss_conf 6567888846733666778799999999999998588888797556668988789999999999999857-997999897 Q ss_pred CHHHHHHHHHCCCEEEEEEEEEEECCEEEEEEEEEECCCCCCHHHHHHHHCCC Q ss_conf 75797664306885899999996099277877774478988778999998299 Q gi|254780750|r 772 FHELTDLSKSLKRFHNATLQVSDSNEGIIFLHKVIPGIADHSYGIQVGKLAGL 824 (920) Q Consensus 772 y~eL~~l~~~~~~v~n~~~~~~~~~~~i~flykl~~G~~~~Sygi~vA~laG~ 824 (920) T Consensus 150 ~~eL~~l~~~~~~v~~~~~~~d~~--~l~~~YKl~~G~~~~s~al~ia~~~Gi 200 (200) T cd03280 150 YGELKAYAYKREGVENASMEFDPE--TLKPTYRLLIGVPGRSNALEIARRLGL 200 (200) T ss_pred CHHHHHHHHHCCCEEEEEEEEECC--CCEEEEEEEECCCCCCHHHHHHHHCCC T ss_conf 178998775135627889999888--267989981489998699999998589

HHsearch alignment for GI: 254780750 and conserved domain: cd03280