>cd04692 Nudix_Hydrolase_33 Members of the Nudix hydrolase superfamily catalyze the hydrolysis of NUcleoside DIphosphates linked to other moieties, X. Enzymes belonging to this superfamily require a divalent cation, such as Mg2+ or Mn2+, for their activity and contain a highly conserved 23-residue nudix motif (GX5EX7REUXEEXGU, where U = I, L or V), which functions as a metal binding and catalytic site. Substrates of nudix hydrolases include intact and oxidatively damaged nucleoside triphosphates, dinucleoside polyphosphates, nucleotide-sugars and dinucleotide enzymes. These substrates are metabolites or cell signaling molecules that require regulation during different stages of the cell cycle or during periods of stress. In general, the role of the nudix hydrolase is to sanitize the nucleotide pools and to maintain cell viability, thereby serving as surveillance & "house-cleaning" enzymes. Substrate specificity is used to define families within the superfamily. Differences in substrate

Probab=99.76 E-value=6.8e-18 Score=123.56 Aligned_cols=111 Identities=27% Similarity=0.376 Sum_probs=81.4 Q ss_pred EEEEEEEEECC---CEEEEEEECCCC-CCCCCEECC-CCCCCCCCCHHHHHHHHHHHHHCCCCCCCCEEEEEEEECCCCC Q ss_conf 99999999359---869999917898-889838225-7310178748899998888762652024420255665205788 Q gi|254780325|r 11 LVVACAVFEPG---GKVLLSCRPKDK-SHGEFWEFP-GGKIEDGETPEEALTRELFEELAIVVKPFSLVPLTFISHPYEK 85 (141) Q Consensus 11 ~vv~~~ii~~~---~~iLl~~R~~~~-~~~g~W~lP-GG~ve~gEs~~~a~~REv~EEtgi~~~~~~~~~~~~~~~~~~~ 85 (141) T Consensus 3 ra~h~~v~~~~~~~g~illqkRs~~K~~~Pg~wd~s~~Ghv~~gEt~~~aa~REl~EElGl~~~~~~l~~lg~~~~~~~~ 82 (144) T cd04692 3 RTFHCWIITKDEGKGYVLLQKRSANKKTYPGLWDISSAGHILAGETPLEDGIRELEEELGLDVSADDLIPLGTFKIEYDH 82 (144) T ss_pred EEEEEEEEECCCCCCEEEEEECCCCCCCCCCCCCCCCCCCCCCCCCHHHHHHHHHHHHHCCCCCHHHCEEEEEEEEEEEC T ss_conf 38999999667995289999788998789983116657504579998999998999986887676881882189999744 Q ss_pred --C---EEEEEEEEEEEEC--C--EECCCHHHEEEECCHHHHCCC Q ss_conf --6---0699999999754--8--376882331570277883248 Q gi|254780325|r 86 --F---HLLMPFFVCHCFE--G--IPQSCEGQQLQWVALDDLQNY 121 (141) Q Consensus 86 --~---~~~~~~~~~~~~~--~--~~~~~E~~~~~Wi~~~el~~~ 121 (141) T Consensus 83 ~~~~~d~e~~~vy~~~~~~~~~~~~~~~~EV~~~~wv~~~el~~~ 127 (144) T cd04692 83 IGKLIDREFHHVYLYELKVPLEEFTLQKEEVAGVVLIPLDEFAEL 127 (144) T ss_pred CCCCEEEEEEEEEEEEECCCCCCCCCCHHHHHEEEEECHHHHHHH T ss_conf 998172089999999968984567899788105999879999999

HHsearch alignment for GI: 254780325 and conserved domain: cd04692