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Database: UniProt
Entry: A0A101W5X2_9FLAO
LinkDB: A0A101W5X2_9FLAO
Original site: A0A101W5X2_9FLAO 
ID   A0A101W5X2_9FLAO        Unreviewed;       326 AA.
AC   A0A101W5X2;
DT   13-APR-2016, integrated into UniProtKB/TrEMBL.
DT   13-APR-2016, sequence version 1.
DT   24-JAN-2024, entry version 20.
DE   RecName: Full=tRNA-dihydrouridine synthase {ECO:0000256|PIRNR:PIRNR006621};
DE            EC=1.3.1.- {ECO:0000256|PIRNR:PIRNR006621};
GN   ORFNames=APF83_13385 {ECO:0000313|EMBL:KUO67347.1};
OS   Lutibacter sp. BRH_c52.
OC   Bacteria; Bacteroidota; Flavobacteriia; Flavobacteriales;
OC   Flavobacteriaceae; Lutibacter.
OX   NCBI_TaxID=1734397 {ECO:0000313|EMBL:KUO67347.1, ECO:0000313|Proteomes:UP000054346};
RN   [1] {ECO:0000313|EMBL:KUO67347.1, ECO:0000313|Proteomes:UP000054346}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=BRH_c52 {ECO:0000313|EMBL:KUO67347.1};
RA   Bagnoud A., Chourey K., Hettich R.L., De Bruijn I., Andersson A.F.,
RA   Leupin O.X., Schwyn B., Bernier-Latmani R.;
RT   "Microbial metabolic network in the subsurface.";
RL   Submitted (OCT-2015) to the EMBL/GenBank/DDBJ databases.
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:0000256|ARBA:ARBA00002790,
CC       ECO:0000256|PIRNR:PIRNR006621}.
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:0000256|ARBA:ARBA00001387};
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:0000256|ARBA:ARBA00001183};
CC   -!- COFACTOR:
CC       Name=FMN; Xref=ChEBI:CHEBI:58210;
CC         Evidence={ECO:0000256|ARBA:ARBA00001917,
CC         ECO:0000256|PIRNR:PIRNR006621};
CC   -!- SIMILARITY: Belongs to the dus family. {ECO:0000256|PIRNR:PIRNR006621}.
CC   -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC       whole genome shotgun (WGS) entry which is preliminary data.
CC       {ECO:0000313|EMBL:KUO67347.1}.
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DR   EMBL; LOEY01000041; KUO67347.1; -; Genomic_DNA.
DR   AlphaFoldDB; A0A101W5X2; -.
DR   Proteomes; UP000054346; Unassembled WGS sequence.
DR   GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:InterPro.
DR   GO; GO:0003723; F:RNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0017150; F:tRNA dihydrouridine synthase activity; IEA:InterPro.
DR   CDD; cd02801; DUS_like_FMN; 1.
DR   Gene3D; 3.20.20.70; Aldolase class I; 1.
DR   InterPro; IPR013785; Aldolase_TIM.
DR   InterPro; IPR035587; DUS-like_FMN-bd.
DR   InterPro; IPR001269; DUS_fam.
DR   InterPro; IPR004652; DusB-like.
DR   InterPro; IPR024036; tRNA-dHydroUridine_Synthase_C.
DR   InterPro; IPR018517; tRNA_hU_synthase_CS.
DR   NCBIfam; TIGR00737; nifR3_yhdG; 1.
DR   PANTHER; PTHR45846; TRNA-DIHYDROURIDINE(47) SYNTHASE [NAD(P)(+)]-LIKE; 1.
DR   PANTHER; PTHR45846:SF1; TRNA-DIHYDROURIDINE(47) SYNTHASE [NAD(P)(+)]-LIKE; 1.
DR   Pfam; PF01207; Dus; 1.
DR   PIRSF; PIRSF006621; Dus; 1.
DR   SUPFAM; SSF51395; FMN-linked oxidoreductases; 1.
DR   PROSITE; PS01136; UPF0034; 1.
PE   3: Inferred from homology;
KW   Flavoprotein {ECO:0000256|ARBA:ARBA00022630,
KW   ECO:0000256|PIRNR:PIRNR006621};
KW   FMN {ECO:0000256|ARBA:ARBA00022643, ECO:0000256|PIRNR:PIRNR006621};
KW   NADP {ECO:0000256|ARBA:ARBA00022857};
KW   Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW   ECO:0000256|PIRNR:PIRNR006621};
KW   RNA-binding {ECO:0000256|ARBA:ARBA00022884};
KW   tRNA processing {ECO:0000256|ARBA:ARBA00022694,
KW   ECO:0000256|PIRNR:PIRNR006621}.
FT   DOMAIN          15..320
FT                   /note="DUS-like FMN-binding"
FT                   /evidence="ECO:0000259|Pfam:PF01207"
FT   ACT_SITE        102
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR006621-1"
SQ   SEQUENCE   326 AA;  36992 MW;  EEB6C70361D859ED CRC64;
     MIKIGDIELC DFPLLLAPME DVSDPPFRAL CKEQGADVVY TEFISSEGLI RDAAKSRKKL
     DIYEKERPVG IQIFGANLES MLRTVEIVEQ SNPDIIDINF GCPVKKVVCK GAGAGILKDI
     DLMVRLTEAM AKHTNLPITV KTRLGWDENS IKIVEVAERL QDVGCKAISI HGRTRAQMYK
     GEADWSHIAA VKNNPRMHIP IFGNGDVNSP ERAMEMRDKF GLDGAMIGRA SIGNPWFFKQ
     VKHFFETGEH LPEITVADRV EMARRHLQME IDWKGVEIVG VMETRRHYTN YFKGIPDFKE
     YRLKMVKSDS AQDVYDVFEE VLQKFA
//
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