HHsearch alignment for GI: 254780127 and conserved domain: cd06138
>cd06138 ExoI_N This subfamily is composed of the N-terminal domain of E. coli exonuclease I (ExoI) and similar proteins. ExoI is a monomeric enzyme that hydrolyzes single stranded DNA in the 3' to 5' direction. It plays a role in DNA recombination and repair. It primarily functions in repairing frameshift mutations. The N-terminal domain of ExoI is a DEDDh-type DnaQ-like 3'-5 exonuclease containing three conserved sequence motifs termed ExoI, ExoII and ExoIII, with a specific Hx(4)D conserved 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 ExoI structure is unique among DnaQ family enzymes in that there is a large distance between the two metal ions required for catalysis and the catalytic histidine is oriented away from the active site.
Probab=97.58 E-value=0.00078 Score=43.54 Aligned_cols=65 Identities=11% Similarity=0.017 Sum_probs=36.6
Q ss_pred HHHHHHCCCCCEEEEEE-HHHHHHHHHHHC---CCCCC------CCCEEEHHHHHHH---HC-------------CCCCH
Q ss_conf 99998648898199863-077599999862---99878------6504545889998---58-------------89997
Q gi|254780127|r 56 DLLQYLRDETVMCVAHN-SLFERILFKKTL---GIDIP------SKRWICTSVLART---NG-------------LPSSL 109 (675)
Q Consensus 56 ~l~~~L~~~~~~kv~HN-a~FD~~vL~~~l---Gi~i~------~~~~~DTmi~A~~---l~-------------~p~sL 109 (675)
T Consensus 75 ~i~~~~~~~~~i~vg~N~~~FD~~fL~~~~~r~~~~p~~~~~~~~~~~~D~l~~~r~~~~~~p~~i~~~~~~~g~~s~kL 154 (183)
T cd06138 75 KIHRLFNTPGTCIVGYNNIRFDDEFLRFAFYRNLYDPYTWEWKNGNSRWDLLDVVRAYYALRPDGIVWPKNDDGKPSFKL 154 (183)
T ss_pred HHHHHHCCCCCEEEEECCHHHHHHHHHHHHHHHCCCCHHHHHCCCCCCCCHHHHHHHHHHHCCCCCCCCCCCCCCCCCCH
T ss_conf 99998616997799845355689999999998278715667527871230788999999978201447655689741129
Q ss_pred HHHHHHHCCCC
Q ss_conf 89999808898
Q gi|254780127|r 110 KNACLALNFSE 120 (675)
Q Consensus 110 ~~la~~lgl~~ 120 (675)
T Consensus 155 ~~l~~~~gi~~ 165 (183)
T cd06138 155 EDLAQANGIEH 165 (183)
T ss_pred HHHHHHCCCCC
T ss_conf 99999849999