>TIGR00195 exoDNase_III exodeoxyribonuclease III; InterPro: IPR000097 DNA damaging agents such as the antitumor drugs bleomycin and neocarzinostatin or those that generate oxygen radicals produce a variety of lesions in DNA. Amongst these is base-loss which forms apurinic/apyrimidinic (AP) sites or strand breaks with atypical 3' termini. DNA repair at the AP sites is initiated by specific endonuclease cleavage of the phosphodiester backbone. Such endonucleases are also generally capable of removing blocking groups from the 3' terminus of DNA strand breaks. AP endonucleases can be classified into two families based on sequence similarity. This family contains members of AP endonuclease family 1. Except for Rrp1 and arp, these enzymes are proteins of about 300 amino-acid residues. Rrp1 and arp both contain additional and unrelated sequences in their N-terminal section (about 400 residues for Rrp1 and 270 for arp). The proteins contain glutamate which has been shown , in the Escherichia coli enzyme to bind a divalent metal ion such as magnesium or manganese.; GO: 0003677 DNA binding, 0004519 endonuclease activity, 0006281 DNA repair, 0005622 intracellular.

Probab=99.90 E-value=2.1e-23 Score=143.20 Aligned_cols=160 Identities=17% Similarity=0.227 Sum_probs=111.0 Q ss_pred EEEEEEEHHCCCCCCCCCCCCCCCCCHHHHHHHH--HHHHHHCCCCEEEEECCC--CHHHHHHHHCCCCCEEEEEECCCC Q ss_conf 8998873100767775566676666879999999--999975189899997279--988999872623221677403578 Q gi|254780797|r 7 IRIASWNINNLSEKSGVALFKNSVIREDNDYALL--QKYAEQLDADIVCLQEIG--SYEAIKRVFPNDKWDILYSGSNTD 82 (231) Q Consensus 7 lrv~twNi~~~~~~~~~~~~~~~~~~~~~~~~~i--~~~i~~~~~DVi~LQEv~--~~~~~~~~~~~~~~~~~~~~~~~~ 82 (231) T Consensus 1 mK~iSwNVNGlR----------------Ar~~~~dFl~~~~~~~pDilClQEtKv~~e~~P~~~~~~~GYh~f~~~~~~K 64 (281) T TIGR00195 1 MKLISWNVNGLR----------------ARLHKGDFLDWLKENKPDILCLQETKVADEQFPRELFEEEGYHVFFSGAKKK 64 (281) T ss_pred CCEEEECCCHHH----------------HHCCHHHHHHHHCCCCCCEEECCCCCCCCCCCCHHHHHHCCCEEEECCCEEE T ss_conf 955786022355----------------3300435888842389958732010145667787899764981787364233 Q ss_pred CCCCEEEEEEECCCCEEE-EEECCCCCCC--CCCCCCCCCEEEEEEEEECCEEEEEEEEEECCCCCCCCCCCHHHHHHHH Q ss_conf 765035688614641010-0001221467--5655445750499999849978999997511688887543002545788 Q gi|254780797|r 83 KHAMHTAIVIRKGAIHLL-QKSYLPMDTE--GLDSKAGKRRAVEILFEVDGRKIWLLDIHLKSFCFLDSIEDSYISSCYM 159 (231) Q Consensus 83 ~~~~~~g~~~~~~~~~~~-~~~~~~~~~~--~~~~~~~~r~~~~~~~~~~g~~~~v~n~HL~s~~~~~~~~~~~~~~~~~ 159 (231) T Consensus 65 G---y~GVA~~sk~EP~~dV~~G~~~e~~PaltGdlD~e~R~I~a~~~~~~G~~Tv~N~Y~PnGES-----~~~~~k~~Y 136 (281) T TIGR00195 65 G---YSGVAIFSKEEPLSDVRYGFGVEEEPALTGDLDAEGRVITAEFDGFLGLLTVVNGYFPNGES-----RLDSEKLPY 136 (281) T ss_pred C---CCCEEEEECCCCHHHHHCCCCCCCCCCCCCCCCCCCCEEEEEECCCEEEEEEEEEEECCCCC-----CCHHHHHHH T ss_conf 6---43079986268858860367887765332761216717999757830248999866559843-----001455788 Q ss_pred HHHHHHHHHHHHHHHCCCCCC-EEEEEECCCC Q ss_conf 754899999999974048878-9999136888 Q gi|254780797|r 160 LNLQATWLKQWVDQKNNLNMP-FIIAGDFNRK 190 (231) Q Consensus 160 ~~~q~~~l~~~i~~~~~~~~~-vii~GDFN~~ 190 (231) T Consensus 137 Kl~w~~~l~~yl~~~~~~~~p~v~~CGD~NiA 168 (281) T TIGR00195 137 KLQWLEALQNYLEKLRDKDKPEVIICGDFNIA 168 (281) T ss_pred HHHHHHHHHHHHHHHHHCCCCEEEEECCCCCC T ss_conf 99999999999999863689889997677889

HHsearch alignment for GI: 254780797 and conserved domain: TIGR00195