>cd05779 DNA_polB_epsilon_exo The 3'-5' exonuclease domain of eukaryotic DNA polymerase epsilon. DNA polymerase epsilon is a family-B DNA polymerase with a catalytic subunit that contains a DEDDy-type DnaQ-like 3'-5' exonuclease domain. It is one of the three DNA-dependent type B DNA polymerases (alpha and delta are the other two) that have been identified as essential for nuclear DNA replication in eukaryotes. DNA polymerase epsilon plays a role in elongating the leading strand during DNA replication. It is also involved in DNA repair. The catalytic subunit contains both polymerase and 3'-5' exonuclease activities. The N-terminal exonuclease domain contains three sequence motifs termed ExoI, ExoII and ExoIII, with a specific YX(3)D pattern at ExoIII. These motifs are clustered around the active site and are involved in metal binding and catalysis. DNA polymerase epsilon also carries a unique large C-terminal domain with an unknown function. Phylogenetic analyses indicate that it is ort

Probab=98.74 E-value=2.4e-07 Score=65.95 Aligned_cols=150 Identities=19% Similarity=0.098 Sum_probs=85.3 Q ss_pred CEEEEECCCCCC-----CCCCCEEEEEEEEEECCCCEECCEEEEEEECCCC-CCCCCHHHHHHHCCCHHHHHHCCCCHHH Q ss_conf 379997527889-----8772604899999983897280400226621788-8778578989857998899607999799 Q gi|254780661|r 4 HFVIYDYETFGR-----DVALDRPAQFAGVRVDRQWEKIESTEVFFCKPAD-DYLPDPEAVFITGITPQKALRDGVVEAE 77 (471) Q Consensus 4 ~~v~~D~ETtG~-----~~~~~~iiq~~~i~~d~~~~~~~~~~~~~~~~~~-~~~p~p~a~~v~git~~~~~~~~~~~~e 77 (471) T Consensus 3 rilsfDIE~~~~~~~fP~~~~D~Ii~Is~~~~-~~g~~i~~~~~~~~~i~~~~~~~~~~~---~g~--~~v~~~-~~E~~ 75 (204) T cd05779 3 RVLAFDIETTKLPLKFPDAETDQIMMISYMID-GQGYLIVNREIVSEDIEDFEYTPKPEY---EGP--FKVFNE-PDEKA 75 (204) T ss_pred EEEEEEEEEECCCCCCCCCCCCEEEEEEEEEE-CCCEEEEECCCCCCCCCCCCCCCCCCC---CCC--EEEEEC-CCHHH T ss_conf 79999999507999998988890899999991-687798743401353300014678566---576--489836-99999 Q ss_pred HHHHHHHHHHCCCC-EEEEEECHHHHHHHHHHHHHHHCCCCCC-C---CCC------CCCCCCCHHHHHHHHHHHHHHHC Q ss_conf 99999999511796-5999505578999999999850785321-3---256------88710015888865556532100 Q gi|254780661|r 78 FSRRIHQFFSVPNT-CIIGYNNIRFDDYYSRNIFYRNFYDSYR-W---SWD------NGNSRWDLLDVMRAIYAFSPDGI 146 (471) Q Consensus 78 ~~~~i~~~~~~~~~-~~ig~N~~~FD~~~lr~~~~r~~~~~y~-~---~~~------~~~~~~D~l~~~~~~~~~~p~~~ 146 (471) T Consensus 76 ll~~f~~~i~~~~pdii~gyN~~~FD~pyl~~Ra~~~~~~~~~~~~~~~~~~~~~~~~~~vhiDly~~v~rd~~------ 149 (204) T cd05779 76 LLQRFFEHIREVKPHIIVTYNGDFFDWPFVEARAAIHGLSMEEEIGFRKDSEGEYKSRYIIHMDCFRWVKRDSY------ 149 (204) T ss_pred HHHHHHHHHHHCCCCEEEECCCCCCCHHHHHHHHHHHCCCHHHHCCCCCCCCCCEECCCCEEEECHHHHHHHCC------ T ss_conf 99999999986499999855876776799999999959982553180006777276267256300776510121------ Q ss_pred CCCCCCCCCCCCCHHHHHHH-HCCCCC Q ss_conf 24444454433108989987-188764 Q gi|254780661|r 147 QWPSRDDGATSFKLQDLALA-NGIEHV 172 (471) Q Consensus 147 ~~~~~~~~~~~~kL~~la~~-n~i~~~ 172 (471) T Consensus 150 ------l~~~sy~Ln~Vs~~~Lg~~K~ 170 (204) T cd05779 150 ------LPQGSQGLKAVTKAKLGYDPV 170 (204) T ss_pred ------CCCCCCCHHHHHHHHHCCCCC T ss_conf ------755687789999999689975

HHsearch alignment for GI: 254780661 and conserved domain: cd05779