HHsearch alignment for GI: 254780636 and conserved domain: cd05160

>cd05160 DNA_polB_exo The 3'-5' exonuclease domain of family-B DNA polymerases. This domain has a fundamental role in reducing polymerase errors and is involved in proofreading activity. Family-B DNA polymerases contain an N-terminal DEDDy DnaQ-like exonuclease domain in the same polypeptide chain as the polymerase domain, similar to family-A DNA polymerases. This 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 contain four conserved acidic residues that serve as ligands for the two metal ions required for catalysis. The exonuclease domain of family B polymerase also contains a beta hairpin structure that plays an important role in active site switching in the event of nucleotide misincorporation. Members include E. coli DNA polymerase II, some eubacterial phage DNA polymerases, nuclear replicative DNA polymerases (alpha, delta, epsilon and zeta), and eukaryotic viral and
Probab=97.74  E-value=0.00018  Score=45.23  Aligned_cols=142  Identities=18%  Similarity=0.188  Sum_probs=76.1

Q ss_pred             CEEEECCCCCCC----CCCCEEEEEEEEEC-CCCEEEE----------------------CCCCCCCCCHHHHHHH--HC
Q ss_conf             279971777898----54450799998418-9428997----------------------4657785706776777--32
Q gi|254780636|r   22 AIAVDTETLGLM----PRRDRLCIVQLSPG-DGTVDII----------------------RIAAGQKNAPNLVGML--VD   72 (207)
Q Consensus        22 ~iaiDtEt~~l~----~~~~~l~LiQl~~~-~~~~~l~----------------------~~~~~~~~~~~L~~ll--~d   72 (207)
T Consensus         1 vlsfDIE~~~~~gfP~p~~d~Ii~Is~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~v~~~~~E~eLL~~F~~~i~~~d   80 (200)
T cd05160           1 VLSFDIETLPNVGGPEPSRDPIICISYADSFQGHKVVFLLKVSTHGDDIEAGFIDGIEVEYFDDEKELLKRFFDIIREYD   80 (200)
T ss_pred             CEEEEEEECCCCCCCCCCCCEEEEEEEEEECCCEEEEEEEECCCCCCCCCCCCCCCEEEEEECCHHHHHHHHHHHHHHCC
T ss_conf             97999832799997899988089999999359999998864355676765467799699996999999999999999709


Q ss_pred             CCCCEEECCC-CHHHHHHHHHH---HCCCCC-----------------------HHHHHHHHHHHHHHCCCHHHHHHHHH
Q ss_conf             3640230100-00168886542---000000-----------------------04578988652110000008877765
Q gi|254780636|r   73 EKREKIFHYG-RFDIAVLFYTF---GVRVRP-----------------------VFCTKIASRLTRTYTNQHGLKDNLKE  125 (207)
Q Consensus        73 ~~i~KV~Hn~-~~D~~~L~~~~---gi~~~~-----------------------i~DT~ias~l~~~~~~~~~L~~L~~~  125 (207)
T Consensus        81 PDii-~GyN~~~FD~pyL~~R~~~l~~~~~~~~~~~~~~~~~~~~~~~~i~Gr~~lD~~~~~k~~-~~l~sy~Ld~Va~~  158 (200)
T cd05160          81 PDIL-TGYNIDDFDLPYLLERAKALGIKLDDIGRRSGQEKSSGETERAAVKGRVVFDLLRAVKRD-FKLKSYTLDAVAEE  158 (200)
T ss_pred             CCEE-EECCCCCCCHHHHHHHHHHHCCCHHHCCCCCCCCCCCCCEEEEEECCEEEEHHHHHHHHH-HCCCCCCHHHHHHH
T ss_conf             9999-972677784889999999969885554673454543575059973677860289999975-32466539999999


Q ss_pred             HHCCCCCC-C-CEECCCCCCCCCHHHHHHHHHHHHHHHHHHH
Q ss_conf             42002467-5-2003656544323689999864599999999
Q gi|254780636|r  126 LLGINISK-A-QQSSDWSADDLSDEQLQYAASDVVHLHALRL  165 (207)
Q Consensus       126 ~lg~~ldK-~-~q~SdW~~rpLs~~Qi~YAA~Dv~~l~~L~~  165 (207)
T Consensus       159 ~Lg~~K~d~~~~~~~~~~~~~d~~k~~~Y~~~D~~L~~~L~e  200 (200)
T cd05160         159 LLGEGKEKVDGEIIEDLEWEEDLERLLEYNLKDAELTLQILE  200 (200)
T ss_pred             HHCCCCCCCCHHHHHHHHHCCCCHHHHHEEHHHHHHHHHHHC
T ss_conf             849997878989999998738914866025999998999759