>cd06127 DEDDh DEDDh exonucleases, part of the DnaQ-like (or DEDD) exonuclease superfamily, catalyze the excision of nucleoside monophosphates at the DNA or RNA termini in the 3'-5' direction. These proteins contain four invariant acidic residues in three conserved sequence motifs termed ExoI, ExoII and ExoIII. DEDDy exonucleases are classified as such because of the presence of specific Hx(4)D conserved pattern at the ExoIII motif. The four conserved acidic residues are clustered around the active site and serve as ligands for the two metal ions required for catalysis. Most DEDDh exonucleases are the proofreading subunits (epsilon) or domains of bacterial DNA polymerase III, the main replicating enzyme in bacteria, which functions as the chromosomal replicase. Other members include other DNA and RNA exonucleases such as RNase T, Oligoribonuclease, and RNA exonuclease (REX), among others.

Probab=100.00 E-value=6.8e-36 Score=244.24 Aligned_cols=157 Identities=45% Similarity=0.738 Sum_probs=137.9 Q ss_pred EEEECCCCCCCCCCCEEEEEEEEEEECCEECCCEEEEEECCCCCCCCHHHEEECCCCCCCCCCCCCCCHHHHHHHHHHHC Q ss_conf 99984678888888889999999999998803137989858882288657242021012322485210023447775300 Q gi|254780818|r 10 IVFDIETTGLDSKNDRIIEIGAVELLDYSKTNRTFQVFLCPNGRKNSPEALKLHGITDEFLKDKPSFSSIFSEFWDFFNE 89 (245) Q Consensus 10 iv~D~ETTGl~~~~d~Iieigav~i~~~~~~~~~f~~~i~P~~~~i~~~~~~ihGIt~~~l~~~p~f~ev~~~f~~fi~~ 89 (245) T Consensus 1 v~~D~ETTGl~~~~~~Iieia~v~~~~~~~~~~~~~~~i~P~-~~~~~~~~~i~gi~~~~~~~~~~~~~~~~~~~~~l~- 78 (159) T cd06127 1 VVLDTETTGLDPKGDRIIEIGAVKVDGGIEIVERFETLVNPG-RPIPPEATAIHGITDEMLADAPPFEEVLPEFLEFLG- 78 (159) T ss_pred CEEEEECCCCCCCCCCEEEEEEEEEECCEEEEEEEEEEECCC-CCCCHHHHHHHCCCHHHHCCCCCHHHHHHHHHHHCC- T ss_conf 989826799999998469999999999956520079998899-999988987606778995899968999999987315- Q ss_pred CCCEEEEECCCCCCCEEEECHHCCCCCCCCCCHHCCCHHCCCCCCCCCC-CCHH-HHHHHHCCCCCCCCCCCCHHHHHHH Q ss_conf 2320231023224311210000011222210000110000000177642-2237-8999718754555666402699999 Q gi|254780818|r 90 QNAEWIAHNAKFDVGFINAELQRINKDPLDPSRIIDTLSIARRKHPSSR-NDLN-SLCKRYGITISHRSKHGALLDSHLL 167 (245) Q Consensus 90 ~~~~lVaHNa~FD~~fL~~el~r~~~~~~~~~~~iDTl~lar~~~p~~~-~~L~-~l~~~~~i~~~~r~~H~Al~Da~~~ 167 (245) T Consensus 79 -~~~lv~hN~~FD~~~L~~~~~~~~~~~~-~~~~iDt~~~~~~~~~~~~~~~~~~~~~~~~~~~~~--~aH~Al~D~~at 154 (159) T cd06127 79 -GRVLVAHNASFDLRFLNRELRRLGGPPL-PNPWIDTLRLARRLLPGLRSHRLGLLLAARYGIPLE--GAHRALADALAT 154 (159) T ss_pred -CCEEEECCHHHHHHHHHHHHHHCCCCCC-CCCEEEHHHHHHHHCCCCCCCCHHHHHHHHCCCCCC--CCCCHHHHHHHH T ss_conf -6346515888999999999998399988-996664799999973888899999999997698879--895989999999 Q ss_pred HHHHH Q ss_conf 99999 Q gi|254780818|r 168 SDVYI 172 (245) Q Consensus 168 a~v~~ 172 (245) T Consensus 155 ~~l~~ 159 (159) T cd06127 155 AELLL 159 (159) T ss_pred HHHHC T ss_conf 99969

HHsearch alignment for GI: 254780818 and conserved domain: cd06127