ID W9H8C4_9PROT Unreviewed; 328 AA.
AC W9H8C4;
DT 14-MAY-2014, integrated into UniProtKB/TrEMBL.
DT 14-MAY-2014, sequence version 1.
DT 24-JAN-2024, entry version 30.
DE RecName: Full=tRNA-dihydrouridine synthase {ECO:0000256|PIRNR:PIRNR006621};
DE EC=1.3.1.- {ECO:0000256|PIRNR:PIRNR006621};
GN ORFNames=N825_20470 {ECO:0000313|EMBL:EWY42269.1};
OS Skermanella stibiiresistens SB22.
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Rhodospirillales;
OC Azospirillaceae; Skermanella.
OX NCBI_TaxID=1385369 {ECO:0000313|EMBL:EWY42269.1, ECO:0000313|Proteomes:UP000019486};
RN [1] {ECO:0000313|EMBL:EWY42269.1, ECO:0000313|Proteomes:UP000019486}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SB22 {ECO:0000313|EMBL:EWY42269.1,
RC ECO:0000313|Proteomes:UP000019486};
RA Zhu W., Wang G.;
RT "The genome sequence of Skermanella stibiiresistens.";
RL Submitted (AUG-2013) 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:EWY42269.1}.
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DR EMBL; AVFL01000002; EWY42269.1; -; Genomic_DNA.
DR RefSeq; WP_037447546.1; NZ_AVFL01000002.1.
DR AlphaFoldDB; W9H8C4; -.
DR STRING; 1385369.N825_20470; -.
DR PATRIC; fig|1385369.3.peg.1015; -.
DR OrthoDB; 9783413at2; -.
DR Proteomes; UP000019486; 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 Reference proteome {ECO:0000313|Proteomes:UP000019486};
KW RNA-binding {ECO:0000256|ARBA:ARBA00022884};
KW tRNA processing {ECO:0000256|ARBA:ARBA00022694,
KW ECO:0000256|PIRNR:PIRNR006621}.
FT DOMAIN 15..316
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 328 AA; 35860 MW; FEE4B9A8D094D3B3 CRC64;
MGINIGSIRI DDPVILAPMS GVSDMPFRRL VKRAGAGLVV SEMIASQAMI RASRQTMKMA
TNCAEEFPMA VQLAGCDPAA MAEAARLNQD RGAALIDINF GCPVKKIVNG HAGSSLMRDE
VHAARILEAT VKAVGLPVTL KMRLGWDDTS RNAPNLARIA QECGIQMVTV HGRTRCQFYT
GSADWPAIRA VKEAVSIPVI ANGDMTTFED VTRCLEQSGA DGVMIGRGTY GRPWFIGQVI
HYLRTGDRLP DPRPDEQLAT LLEHYEAMLE HYGTDAGVKI ARKHVSWYSK GFPGSAEFRA
EVNRVADPVV VRDMIRSFYS PEIERMAA
//
