ID A0A0H4CGW3_9ACTN Unreviewed; 377 AA.
AC A0A0H4CGW3;
DT 14-OCT-2015, integrated into UniProtKB/TrEMBL.
DT 14-OCT-2015, sequence version 1.
DT 24-JAN-2024, entry version 31.
DE RecName: Full=tRNA-dihydrouridine synthase {ECO:0000256|PIRNR:PIRNR006621};
DE EC=1.3.1.- {ECO:0000256|PIRNR:PIRNR006621};
GN ORFNames=QR97_07805 {ECO:0000313|EMBL:AKN75187.1};
OS Streptomyces sp. PBH53.
OC Bacteria; Actinomycetota; Actinomycetes; Kitasatosporales;
OC Streptomycetaceae; Streptomyces.
OX NCBI_TaxID=1577075 {ECO:0000313|EMBL:AKN75187.1, ECO:0000313|Proteomes:UP000036399};
RN [1] {ECO:0000313|EMBL:AKN75187.1, ECO:0000313|Proteomes:UP000036399}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PBH53 {ECO:0000313|EMBL:AKN75187.1,
RC ECO:0000313|Proteomes:UP000036399};
RX PubMed=26227608;
RA Gosse J.T., Hill P., Dowd S.E., Boddy C.N.;
RT "Draft Genome Sequence of Streptomyces sp. Strain PBH53, Isolated from an
RT Urban Environment.";
RL Genome Announc. 3:e00859-e00815(2015).
RN [2] {ECO:0000313|Proteomes:UP000036399}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PBH53 {ECO:0000313|Proteomes:UP000036399};
RA Gosse J.T., Boddy C.N., Hill P.B.;
RT "Draft Genome Sequence of Streptomyces sp. strain PBH53, isolated from
RT urban environment.";
RL Submitted (JUN-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}.
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DR EMBL; CP011799; AKN75187.1; -; Genomic_DNA.
DR RefSeq; WP_059249422.1; NZ_CP011799.1.
DR AlphaFoldDB; A0A0H4CGW3; -.
DR STRING; 1577075.QR97_07805; -.
DR PATRIC; fig|1577075.3.peg.1597; -.
DR Proteomes; UP000036399; Chromosome.
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:UP000036399};
KW RNA-binding {ECO:0000256|ARBA:ARBA00022884};
KW tRNA processing {ECO:0000256|ARBA:ARBA00022694,
KW ECO:0000256|PIRNR:PIRNR006621}.
FT DOMAIN 18..322
FT /note="DUS-like FMN-binding"
FT /evidence="ECO:0000259|Pfam:PF01207"
FT ACT_SITE 107
FT /note="Proton donor"
FT /evidence="ECO:0000256|PIRSR:PIRSR006621-1"
SQ SEQUENCE 377 AA; 40769 MW; 0E864702FDCF3DB3 CRC64;
MTHPLSIGPH AVTPPVVLAP MAGITNAPFR TLCREFSGGK GLFVSEMITT RALVERNEKT
MQLIKFDASE QPRSIQLYGV DPATVGKAVR MIAEEGLADH IDLNFGCPVP KVTRKGGGSA
LPYKRNLLRA ILREAVAGAG DLPVTMKMRK GIDDDHITYL DAGRIAVEEG VTAIALHGRT
AAQHYGGTAD WDAIARLKEH VPEIPVLGNG DIWSAEDALR MVRETGCDGV VVGRGCLGRP
WLFADLVAGF EGRTGDFVRP TLREVADVMV RHATLLGEWI GDESKGVVDF RKHVAWYLKG
FAVGSEMRKR LAITSSLEEL RAGLDELDLD QPWPVGAEGP RGRTSGNNRV VLPDGWLKDP
YDCSGVTEDA ELDTSGG
//
