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DUS_STAES
ID   DUS_STAES               Reviewed;         326 AA.
AC   Q8CU07;
DT   15-DEC-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2003, sequence version 1.
DT   03-AUG-2022, entry version 96.
DE   RecName: Full=Probable tRNA-dihydrouridine synthase;
DE            EC=1.3.1.-;
GN   Name=dus; OrderedLocusNames=SE_0156;
OS   Staphylococcus epidermidis (strain ATCC 12228 / FDA PCI 1200).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Staphylococcaceae;
OC   Staphylococcus.
OX   NCBI_TaxID=176280;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 12228 / FDA PCI 1200;
RX   PubMed=12950922; DOI=10.1046/j.1365-2958.2003.03671.x;
RA   Zhang Y.-Q., Ren S.-X., Li H.-L., Wang Y.-X., Fu G., Yang J., Qin Z.-Q.,
RA   Miao Y.-G., Wang W.-Y., Chen R.-S., Shen Y., Chen Z., Yuan Z.-H.,
RA   Zhao G.-P., Qu D., Danchin A., Wen Y.-M.;
RT   "Genome-based analysis of virulence genes in a non-biofilm-forming
RT   Staphylococcus epidermidis strain (ATCC 12228).";
RL   Mol. Microbiol. 49:1577-1593(2003).
CC   -!- FUNCTION: Catalyzes the synthesis of 5,6-dihydrouridine (D), a modified
CC       base found in the D-loop of most tRNAs, via the reduction of the C5-C6
CC       double bond in target uridines. {ECO:0000250|UniProtKB:P33371}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a 5,6-dihydrouridine in tRNA + NAD(+) = a uridine in tRNA +
CC         H(+) + NADH; Xref=Rhea:RHEA:54452, Rhea:RHEA-COMP:13339, Rhea:RHEA-
CC         COMP:13887, ChEBI:CHEBI:15378, ChEBI:CHEBI:57540, ChEBI:CHEBI:57945,
CC         ChEBI:CHEBI:65315, ChEBI:CHEBI:74443;
CC         Evidence={ECO:0000250|UniProtKB:P33371};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=a 5,6-dihydrouridine in tRNA + NADP(+) = a uridine in tRNA +
CC         H(+) + NADPH; Xref=Rhea:RHEA:23624, Rhea:RHEA-COMP:13339, Rhea:RHEA-
CC         COMP:13887, ChEBI:CHEBI:15378, ChEBI:CHEBI:57783, ChEBI:CHEBI:58349,
CC         ChEBI:CHEBI:65315, ChEBI:CHEBI:74443;
CC         Evidence={ECO:0000250|UniProtKB:P33371};
CC   -!- COFACTOR:
CC       Name=FMN; Xref=ChEBI:CHEBI:58210;
CC         Evidence={ECO:0000250|UniProtKB:P33371};
CC   -!- SIMILARITY: Belongs to the Dus family. {ECO:0000305}.
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DR   EMBL; AE015929; AAO03753.1; -; Genomic_DNA.
DR   RefSeq; NP_763711.1; NC_004461.1.
DR   RefSeq; WP_002437657.1; NZ_WBME01000064.1.
DR   AlphaFoldDB; Q8CU07; -.
DR   SMR; Q8CU07; -.
DR   STRING; 176280.SE_0156; -.
DR   EnsemblBacteria; AAO03753; AAO03753; SE_0156.
DR   KEGG; sep:SE_0156; -.
DR   PATRIC; fig|176280.10.peg.144; -.
DR   eggNOG; COG0042; Bacteria.
DR   HOGENOM; CLU_013299_0_3_9; -.
DR   OMA; LIYPYVD; -.
DR   Proteomes; UP000001411; Chromosome.
DR   GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:InterPro.
DR   GO; GO:0000049; F:tRNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0017150; F:tRNA dihydrouridine synthase activity; IEA:InterPro.
DR   CDD; cd02801; DUS_like_FMN; 1.
DR   Gene3D; 1.10.1200.80; -; 1.
DR   Gene3D; 3.20.20.70; -; 1.
DR   InterPro; IPR013785; Aldolase_TIM.
DR   InterPro; IPR035587; DUS-like_FMN-bd.
DR   InterPro; IPR001269; DUS_fam.
DR   InterPro; IPR024036; tRNA-dHydroUridine_Synthase_C.
DR   InterPro; IPR018517; tRNA_hU_synthase_CS.
DR   Pfam; PF01207; Dus; 1.
DR   PIRSF; PIRSF006621; Dus; 1.
DR   PROSITE; PS01136; UPF0034; 1.
PE   3: Inferred from homology;
KW   Flavoprotein; FMN; NADP; Oxidoreductase; RNA-binding; tRNA processing;
KW   tRNA-binding.
FT   CHAIN           1..326
FT                   /note="Probable tRNA-dihydrouridine synthase"
FT                   /id="PRO_0000162148"
FT   ACT_SITE        105
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000250|UniProtKB:Q5SMC7"
FT   BINDING         18..20
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000250|UniProtKB:P33371"
FT   BINDING         143
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000250|UniProtKB:P33371"
FT   BINDING         208..210
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000250|UniProtKB:P33371"
FT   BINDING         232..233
FT                   /ligand="FMN"
FT                   /ligand_id="ChEBI:CHEBI:58210"
FT                   /evidence="ECO:0000250|UniProtKB:P33371"
SQ   SEQUENCE   326 AA;  37358 MW;  CE8EA9164E283C43 CRC64;
     MKENFWSTLP RPFFILAPME DVTNIVFRHV VSEAARPDVF FTEFTNTESY CHPEGIHSVR
     GRLTFSDDEQ PMVAHIWGDK PEQFREMSIG LADMGFKGID LNMGCPVANV AKKGKGSGLI
     LRPETAAEII QASKAGGLPV SVKTRLGYYD IDEWRDWLKH VFEQDIANLS IHLRTRKEMS
     KVDAHWELIE AIKTLRDEIA PNTLLTINGD IPDRQTGLEL ANKYGIDGIM IGRGIFHNPF
     AFEKEPREHS SKELLGLLRL HLSLFEKYDK DEARHFKSLR RFFKIYVRGI RGASELRHQL
     MNTQSIAEAR ELLDTFEARM DARSEV
 
 
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