>TIGR00586 mutt mutator mutT protein; InterPro: IPR003561 MutT is a small bacterial protein (~12-15kDa) involved in the GO system responsible for removing an oxidatively damaged form of guanine (8-hydroxy- guanine or 7,8-dihydro-8-oxoguanine) from DNA and the nucleotide pool. 8-oxo-dGTP is inserted opposite dA and dC residues of template DNA with near equal efficiency, leading to A.T to G.C transversions. MutT specifically degrades 8-oxo-dGTP to the monophosphate, with the concomitant release of pyrophosphate. A short conserved N-terminal region of mutT (designated the MutT domain) is also found in a variety of other prokaryotic, viral, and eukaryotic proteins , , , . Recently, the generic name 'NUDIX hydrolases' (NUcleoside DIphosphate linked to some other moiety X) has been coined for this domain family . The solution structure of the MutT enzyme has been solved by NMR . The structure is globular and compact, and contains a five-stranded mixed beta-sheet. The parallel portion of the sheet is sandwiched between two alpha-helices, forming an alpha+beta fold. ; GO: 0008413 8-oxo-78-dihydroguanine triphosphatase activity, 0006281 DNA repair.

Probab=99.70  E-value=8.5e-18  Score=124.04  Aligned_cols=71  Identities=27%  Similarity=0.401  Sum_probs=56.4

Q ss_pred             EEEECCCCCEEEEEECCCCCCCCCCCCCCCCCCCCCCCCHHHHHHHHHHHHHCCCCCCCCCCCCCCEEECCCCCC
Q ss_conf             999848983999992688776668722012115078888889999999998375522222013661241163222
Q gi|254780557|r    8 ILILNQDDLVWVGRRCFHDNNKHLSLWQMPQGGINPQEDPLDAAYRELYEETGIKSISLLGQGDSYIQYDFPAHC   82 (160)
Q Consensus         8 vvi~n~~~~iLl~kR~~~~~~~~~g~W~~PgG~ve~gEt~~~Aa~REl~EEtGi~~~~~~~~~~~~~~~~~~~~~   82 (160)
T Consensus        10 giIrNe~gei~itrR~~g--~~~a~~lEFPGGK~e~GETpeqa~vREl~EEigI~~~~~~l--~e~l~~eyP~~~   80 (150)
T TIGR00586        10 GIIRNENGEIFITRRAAG--AHFANKLEFPGGKIEMGETPEQAVVRELQEEIGITPQHFEL--FEKLEYEYPQKR   80 (150)
T ss_pred             EEEECCCCCEEEEECCCC--CCHHCCCCCCCCCCCCCCCHHHHHHHHHHHHEEEEEECCHH--EEEECCCCCCEE
T ss_conf             899818880788744456--21000247989813889897897765422200123200000--001013067400