HHsearch alignment for GI: 254780277 and conserved domain: cd05783

>cd05783 DNA_polB_B1_exo The 3'-5' exonuclease domain of Sulfolobus solfataricus DNA polymerase B1 and similar archaeal proteins. B1 is a family-B DNA polymerase. 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. B1displays thermostable polymerase and 3'-5' exonuclease activities. This 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. The exonuclease domain of family-B polymerases also contains a beta hairpin structure that plays an important role in active site switching in the event of nucleotide misincorporation. Family-B DNA polymerases from thermophilic archaea are unique in that they are able to recognize the presence of uracil in the template strand, leading to the stalling of DNA synthes
Probab=96.80  E-value=0.0019  Score=43.66  Aligned_cols=101  Identities=19%  Similarity=0.252  Sum_probs=61.8

Q ss_pred             HHHHHHHHHHHHCCCCCHHHHCCC-CHHHHHHHH----CCCCCC---------------CC-CC-------HHHHHHHHC
Q ss_conf             899997444420222100110032-123788986----188666---------------42-10-------023455431
Q gi|254780277|r  446 TKEILSYLKKFFENEHFLKIGHNI-KYDKLVLHR----YGISMR---------------GF-ED-------IMLMSYVLD  497 (976)
Q Consensus       446 ~~evl~~L~~lle~~~i~kIgHN~-KfD~~~L~~----~GI~l~---------------~i-~D-------TmlaayLLd  497 (976)
T Consensus        73 E~~LL~~F~~~i~~~p-~Ii~wN~~~FDiPYL~~R~~~Lg~~~~~~~~~~~~~~~~~~~~~~~dl~~~~~~~~~~~y~~~  151 (204)
T cd05783          73 EKELIREAFKIISEYP-IVLTFNGDNFDLPYLYNRALKLGIPKEEIPIYLKRDYATLKHGIHIDLYKFFSNRAIQVYAFG  151 (204)
T ss_pred             HHHHHHHHHHHHHCCC-EEEECCCCCCCHHHHHHHHHHHCCCCEEEEEEECCEEEEEEEEEEEEEHHHCCCCHHHHHHCC
T ss_conf             9999999999974399-799817867788999999998599820456673436999934499986463573135441202


Q ss_pred             CCCCCCCHHHHHHHHCCCCCCCCCCCCCCCCCCHHHCCHHHHHHHHHHHHHHHHHH
Q ss_conf             68766772466776224442233565432221000000123333222111112456
Q gi|254780277|r  498 SGRSSHDIASIAQKWLSYTRKEILKSRKSSIPIDKISDSQVQEHAIENSNVILQLW  553 (976)
Q Consensus       498 p~~~~~~L~~la~~yL~~~~~e~~~~~k~~~~~~~i~~e~~~~Yaa~Da~~t~~L~  553 (976)
T Consensus       152 ~k~~sY~Ld~Va~~~LGe~K~d~~~------~~~~~d~~k~i~YNi~D~~Lv~~L~  201 (204)
T cd05783         152 NKYREYTLDAVAKALLGEGKVELEK------NISELNLYELAEYNYRDAELTLELT  201 (204)
T ss_pred             CCCCCCCHHHHHHHHHCCCCCCCCC------CCCCCCHHHHHEEEHHHHHHHHHHH
T ss_conf             4212252889999983888600676------4442586785514267767777862