RPSBLAST alignment for GI: 254781076 and conserved domain: cd06590

>gnl|CDD|132876 cd06590, RNaseH_typeII_bacteria_HIII_like, bacterial Ribonuclease HIII-like. Ribonuclease H (RNase H) is classified into two families, type I (prokaryotic RNase HI, eukaryotic RNase H1 and viral RNase H) and type II (prokaryotic RNase HII and HIII, and eukaryotic RNase H2). RNase H endonucleolytically hydrolyzes an RNA strand when it is annealed to a complementary DNA strand in the presence of divalent cations, in DNA replication and repair. Several bacteria, such as Bacillus subtilis, have two different type II RNases H, RNases HII and HIII. RNases HIII are distinguished by having a large (70-90 residues) N-terminal extension of unknown function. In addition, the active site of RNase HIII differs from that of other RNases H; replacing the fourth residue (aspartate) of the acidic "DEDD" motif with a glutamate. Most prokaryotic and eukaryotic genomes contain multiple RNase H genes, however, no prokaryotic genomes contain the combination of both RNase HI and HIII. This mutual exclusive gene inheritance might be the result of functional redundancy of RNase HI and HIII in prokaryotes. Length = 208
 Score = 72.6 bits (179), Expect = 7e-14
 Identities = 52/169 (30%), Positives = 74/169 (43%), Gaps = 33/169 (19%)

Query: 28  GIDEVGRGALAGPVVVAAIILDPNNIPF----GINDSKKISHKKREELYEKITSSAIISI 83
           G DEVG+G   GP+VVAA+ +D  NI      G+ DSKK++ KK   L  KI      S+
Sbjct: 2   GSDEVGKGDYFGPLVVAAVYVDKENISKLKKLGVKDSKKLTDKKIIRLAPKIKKKIPYSV 61

Query: 84  SSAS-----HQYIDKHNIH--KATL--DAIYHAVENLQVIPRSALID------------- 121
            S         Y    N++  KA L   AI + +E  +      LID             
Sbjct: 62  LSLGPEKYNELYKKGKNLNKLKALLHNKAINNLLEKPKKPVA-ILIDQFASEKVYKRYLK 120

Query: 122 --GRSIPEDLPCQAFAVIKGDSISLSIAAASIIAKVTRDRLMRIAHKKY 168
              + + E L  +     K +S  L++AAASI+A+      M    K+Y
Sbjct: 121 KEKKIVKEPLIFR----TKAESKHLAVAAASILARYAFLEKMEKLSKQY 165