>cd02801 DUS_like_FMN Dihydrouridine synthase-like (DUS-like) FMN-binding domain. Members of this family catalyze the reduction of the 5,6-double bond of a uridine residue on tRNA. Dihydrouridine modification of tRNA is widely observed in prokaryotes and eukaryotes, and also in some archaea. Most dihydrouridines are found in the D loop of t-RNAs. The role of dihydrouridine in tRNA is currently unknown, but may increase conformational flexibility of the tRNA. It is likely that different family members have different substrate specificities, which may overlap. 1VHN, a putative flavin oxidoreductase, has high sequence similarity to DUS. The enzymatic mechanism of 1VHN is not known at the present.

Probab=100.00 E-value=0 Score=496.73 Aligned_cols=220 Identities=40% Similarity=0.682 Sum_probs=207.0 Q ss_pred CCCCCCHHHHHHHHHHCCCEEEECCCCCCHHHHCCCHH--HHHHCCCCCCCEEEEEECCCHHHHHHHHHHHHCCCCCEEE Q ss_conf 97786078999999828982998170332477608978--9830274578469998269989999988753104537774 Q gi|254781167|r 1 MVDWTDRHYRFFARLLTNNALLYTEMIVADAILRGDKK--NILGFSTQEKPLALQIGGADISKLVEAAKIVEDFGYNEIN 78 (322) Q Consensus 1 Mag~Td~~fR~l~r~~~~~~~~~TEmi~a~~l~~~~~~--~~~~~~~~e~p~~~Ql~g~~p~~~~~aa~~~~~~g~~~id 78 (322) T Consensus 7 M~g~td~~fR~l~~~~g~~-~~~TEmv~a~~~~~~~~~~~~~~~~~~~e~p~~~Ql~g~~p~~~~~aa~~~~~~g~d~ID 85 (231) T cd02801 7 MVGVTDLPFRLLCRRYGAD-LVYTEMISAKALLRGNRKRLRLLTRNPEERPLIVQLGGSDPETLAEAAKIVEELGADGID 85 (231) T ss_pred CCCCCCHHHHHHHHHHCCC-EEEECCEEEHHHHCCCHHHHHHHCCCCCCCEEEEEECCCCHHHHHHHHHHHHHCCCCEEE T ss_conf 8998479999999998939-899798998776538887898724486678079987589899999999988753999999 Q ss_pred ECCCCCHHHHHHHHHHHHHHHHHHHHHHHHHHHHCCCCEEEEEEEECCCCCCCCCCCHHHHHHHHCCCCCCHHHHHHHHH Q ss_conf 42564136776668899998558999999999850279069998611345665322014554320001220121001356 Q gi|254781167|r 79 LNVGCPSARVHEGSFGACLMLNPDIVGDCIAAMCKALSIPVTVKCRIGVDDQIPAVALRNLVKSIKKSGVNGIWIHARKA 158 (322) Q Consensus 79 lN~GCP~~~v~~~g~GaaLl~~p~~~~~iv~~~~~~~~~pvsvK~RlG~~~~~~~~~~~~~~~~~~~~g~~~itiH~Rt~ 158 (322) T Consensus 86 lN~GCP~~~v~~~g~Ga~Ll~~p~~v~~iv~~~~~~~~ipVsvKiRlg~~~~---~~~~~~~~~l~~~G~~~ltvH~Rt- 161 (231) T cd02801 86 LNMGCPSPKVTKGGAGAALLKDPELVAEIVRAVREAVPIPVTVKIRLGWDDE---EETLELAKALEDAGASALTVHGRT- 161 (231) T ss_pred EECCCCHHHHCCCCCCHHHHHCHHHHHHHHHHHHHHCCCCEEEEEEECCCCH---HHHHHHHHHHHHCCCCEEEEECCC- T ss_conf 8389996997089830787629789999999999756994799997077863---479999999997699899983561- Q ss_pred HHHCCCCCCCCCCCCCHHHHHHHHHHHCCCCCCCCCCCCCCHHHHHHHHH--CCCCEEEECCCCCHHHHHHHHHHHH Q ss_conf 64025774212276610467876667388753025777789989888742--0352344122000124399999987 Q gi|254781167|r 159 ILKGLSPKDNRKIPNLDYDIVYEIKKENPDLFIGLNGGLEDMSQALKILP--SVDGVMIGRAAYKNSAMLTTVDEYF 233 (322) Q Consensus 159 ~~~g~s~~~~~~~~~~~~~~i~~l~~~~~~~~i~~NGdi~~~~~a~~~l~--~~dgvMigRga~~~P~if~~I~~~l 233 (322) T Consensus 162 -------~~q~~~~~a~~e~i~~~~~~-~~ipvi~NGdI~s~~d~~~~~~~tg~dgvMigRgal~nP~iF~~i~~~~ 230 (231) T cd02801 162 -------REQRYSGPADWDYIAEIKEA-VSIPVIANGDIFSLEDALRCLEQTGVDGVMIGRGALGNPWLFREIKELL 230 (231) T ss_pred -------HHHCCCCCCCHHHHHHHHHC-CCCEEEEECCCCCHHHHHHHHHHHCCCEEEECHHHHHCCHHHHHHHHHH T ss_conf -------44146776226999999865-9977998389099999999998509999998788876988999999975

HHsearch alignment for GI: 254781167 and conserved domain: cd02801