>TIGR00576 dut dUTP diphosphatase; InterPro: IPR008181 Synonym(s): dUTP diphosphatase, Deoxyuridine-triphosphatase. The essential enzyme dUTP pyrophosphatase (3.6.1.23 from EC) is specific for dUTP and is critical for the fidelity of DNA replication and repair. dUTPase hydrolyzes dUTP to dUMP and pyrophosphate, simultaneously reducing dUTP levels and providing the dUMP for dTTP biosynthesis. dUTPase decreases the intracellular concentration of dUPT so that uracil cannot be incorporated into DNA . The crystal structure of human dUTPase reveals that each subunit of the dUTPase trimer folds into an eight-stranded jelly-roll beta barrel, with the C-terminal beta strands interchanged among the subunits. The structure is similar to that of the Escherichia coli enzyme, despite low sequence homology between the two enzymes . Other enzymes like deoxycytidine triphosphate deaminase (dCTP) (3.5.4.13 from EC) that specifically bind uridine also belong to this group suggesting that the signature may recognise a putative uridine-binding motif. Some retroviruses encode dUTPases. Retroviral dUTPase is synthesised as part of POL polyprotein that contains; an aspartyl protease, a reverse transcriptase, dUTPase and RNase H. ; GO: 0016787 hydrolase activity, 0046080 dUTP metabolic process.

Probab=100.00 E-value=0 Score=377.65 Aligned_cols=146 Identities=49% Similarity=0.838 Sum_probs=134.0 Q ss_pred EEEEECCCCCCCCCCCCCCCCCCEEEEEEECCCCCCEEECCCCEEEEECCCHHHCCCCEEEEEEECCCCEEEEEEECCCC Q ss_conf 89997675479703743578864087891037787389379973999658602258761467875266313322202355 Q gi|254781025|r 6 IPFLQLPHAHGIPLPEYKTSGSSGMDLFAALPEDEPVELLPGMRSLIPGGYIIAIPPGYEGQVRSRSGLALNYGVACLNS 85 (154) Q Consensus 6 iki~~~~~~~~~~lP~~~t~~~AG~Dl~a~~~~~e~~~i~pg~~~li~Tgi~i~ip~g~~~~i~~RSsl~~K~gl~~~n~ 85 (154) T Consensus 2 ~~~~~l--~~~a~~P~ya~~~aAG~DL~a~~~~~~P~~i~P~~~~Lv~TG~~~~lP~g~~g~v~PRSGLA~K~gv~i~n~ 79 (151) T TIGR00576 2 LKFVKL--SENAPLPTYATEGAAGYDLRAAEDVADPVTIPPGERALVPTGIAIELPEGYYGRVAPRSGLALKHGVTIDNS 79 (151) T ss_pred EEEEEC--CCCCCCCCCCCCCCCCCEEEEECCCCCCEEECCCCEEEECCCEEEECCCCCEEEEEECCCCCEEEEEEEECC T ss_conf 388860--889867862787656623778417998758789984875244299848994899730441330246899667 Q ss_pred CEEECCCCCCCEEEEEEECC-CCEEEEECCCCEEEEEEEECCCCEEEEE---ECCCCCCCCCCCCCCCCCCC Q ss_conf 03665687887699999807-9449995595035899975043406998---71357754268888735467 Q gi|254781025|r 86 PGTIDSDYRGEIKILLINLG-QENFLIMRGMRIAQLIIANSVRAHPSLI---SAMPMGKNERNEKGFGSTGL 153 (154) Q Consensus 86 ~GvID~~YrGei~v~l~N~~-~~~~~i~~G~RIaQlv~~~~~~~~~~~v---~~~~l~~t~RG~~GFGSTG~ 153 (154) T Consensus 80 ~GvID~DYRGE~kV~L~N~gp~~~f~v~~GdRIAQlv~~~~~~v~~v~~~~~~v~~L~~T~RG~GGFGSTG~ 151 (151) T TIGR00576 80 PGVIDADYRGEIKVILINLGPKEDFTVKKGDRIAQLVVEKIVQVEFVEVEFEEVEELDETERGEGGFGSTGV 151 (151) T ss_pred CCEEECCCCCCEEEEEEECCCCCCEEECCCCEEEEEEEEEEEEEEEEEEEEEEEECCCCCCCCCCCCCCCCC T ss_conf 817817872026899985899986788579757768873156899862004564046666775887465799

HHsearch alignment for GI: 254781025 and conserved domain: TIGR00576