ID A0A0W0R1G8_9GAMM Unreviewed; 345 AA.
AC A0A0W0R1G8;
DT 16-MAR-2016, integrated into UniProtKB/TrEMBL.
DT 16-MAR-2016, sequence version 1.
DT 24-JAN-2024, entry version 31.
DE RecName: Full=tRNA-dihydrouridine(20/20a) synthase {ECO:0000256|HAMAP-Rule:MF_02041};
DE EC=1.3.1.91 {ECO:0000256|HAMAP-Rule:MF_02041};
DE AltName: Full=U20-specific dihydrouridine synthase {ECO:0000256|HAMAP-Rule:MF_02041};
DE Short=U20-specific Dus {ECO:0000256|HAMAP-Rule:MF_02041};
DE AltName: Full=tRNA-dihydrouridine synthase A {ECO:0000256|HAMAP-Rule:MF_02041};
GN Name=dus_2 {ECO:0000313|EMBL:VEH85587.1};
GN Synonyms=dusA {ECO:0000256|HAMAP-Rule:MF_02041};
GN ORFNames=Lade_1711 {ECO:0000313|EMBL:KTC64904.1}, NCTC12735_01222
GN {ECO:0000313|EMBL:VEH85587.1};
OS Legionella adelaidensis.
OG Plasmid 19 {ECO:0000313|EMBL:VEH85587.1,
OG ECO:0000313|Proteomes:UP000281170}.
OC Bacteria; Pseudomonadota; Gammaproteobacteria; Legionellales;
OC Legionellaceae; Legionella.
OX NCBI_TaxID=45056 {ECO:0000313|EMBL:KTC64904.1, ECO:0000313|Proteomes:UP000054859};
RN [1] {ECO:0000313|EMBL:KTC64904.1, ECO:0000313|Proteomes:UP000054859}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=1762-AUS-E {ECO:0000313|EMBL:KTC64904.1,
RC ECO:0000313|Proteomes:UP000054859};
RA Burstein D., Amaro F., Zusman T., Lifshitz Z., Cohen O., Gilbert J.A.,
RA Pupko T., Shuman H.A., Segal G.;
RT "Identification of large and diverse effector repertoires of 38 Legionella
RT species.";
RL Submitted (NOV-2015) to the EMBL/GenBank/DDBJ databases.
RN [2] {ECO:0000313|EMBL:VEH85587.1, ECO:0000313|Proteomes:UP000281170}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NCTC12735 {ECO:0000313|EMBL:VEH85587.1,
RC ECO:0000313|Proteomes:UP000281170};
RC PLASMID=19 {ECO:0000313|Proteomes:UP000281170};
RG Pathogen Informatics;
RL Submitted (DEC-2018) 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. Specifically modifies U20 and U20a in
CC tRNAs. {ECO:0000256|HAMAP-Rule:MF_02041}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=5,6-dihydrouridine(20) in tRNA + NAD(+) = H(+) + NADH +
CC uridine(20) in tRNA; Xref=Rhea:RHEA:53340, Rhea:RHEA-COMP:13533,
CC Rhea:RHEA-COMP:13534, ChEBI:CHEBI:15378, ChEBI:CHEBI:57540,
CC ChEBI:CHEBI:57945, ChEBI:CHEBI:65315, ChEBI:CHEBI:74443; EC=1.3.1.91;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_02041};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=5,6-dihydrouridine(20) in tRNA + NADP(+) = H(+) + NADPH +
CC uridine(20) in tRNA; Xref=Rhea:RHEA:53336, Rhea:RHEA-COMP:13533,
CC Rhea:RHEA-COMP:13534, ChEBI:CHEBI:15378, ChEBI:CHEBI:57783,
CC ChEBI:CHEBI:58349, ChEBI:CHEBI:65315, ChEBI:CHEBI:74443; EC=1.3.1.91;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_02041};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=5,6-dihydrouridine(20a) in tRNA + NAD(+) = H(+) + NADH +
CC uridine(20a) in tRNA; Xref=Rhea:RHEA:53348, Rhea:RHEA-COMP:13535,
CC Rhea:RHEA-COMP:13536, ChEBI:CHEBI:15378, ChEBI:CHEBI:57540,
CC ChEBI:CHEBI:57945, ChEBI:CHEBI:65315, ChEBI:CHEBI:74443;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_02041};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=5,6-dihydrouridine(20a) in tRNA + NADP(+) = H(+) + NADPH +
CC uridine(20a) in tRNA; Xref=Rhea:RHEA:53344, Rhea:RHEA-COMP:13535,
CC Rhea:RHEA-COMP:13536, ChEBI:CHEBI:15378, ChEBI:CHEBI:57783,
CC ChEBI:CHEBI:58349, ChEBI:CHEBI:65315, ChEBI:CHEBI:74443;
CC Evidence={ECO:0000256|HAMAP-Rule:MF_02041};
CC -!- COFACTOR:
CC Name=FMN; Xref=ChEBI:CHEBI:58210;
CC Evidence={ECO:0000256|ARBA:ARBA00001917,
CC ECO:0000256|HAMAP-Rule:MF_02041, ECO:0000256|PIRNR:PIRNR006621};
CC -!- SIMILARITY: Belongs to the Dus family. DusA subfamily.
CC {ECO:0000256|HAMAP-Rule:MF_02041}.
CC -!- SIMILARITY: Belongs to the dus family. {ECO:0000256|PIRNR:PIRNR006621}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_02041}.
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DR EMBL; LNKA01000016; KTC64904.1; -; Genomic_DNA.
DR EMBL; LR134428; VEH85587.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A0W0R1G8; -.
DR STRING; 45056.Lade_1711; -.
DR KEGG; ladl:NCTC12735_01222; -.
DR PATRIC; fig|45056.6.peg.1767; -.
DR Proteomes; UP000054859; Unassembled WGS sequence.
DR Proteomes; UP000281170; Plasmid 19.
DR GO; GO:0050660; F:flavin adenine dinucleotide binding; IEA:InterPro.
DR GO; GO:0010181; F:FMN binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000049; F:tRNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0102264; F:tRNA-dihydrouridine20 synthase activity; IEA:UniProtKB-EC.
DR CDD; cd02801; DUS_like_FMN; 1.
DR Gene3D; 1.20.120.1460; -; 1.
DR Gene3D; 3.20.20.70; Aldolase class I; 1.
DR HAMAP; MF_02041; DusA_subfam; 1.
DR InterPro; IPR013785; Aldolase_TIM.
DR InterPro; IPR035587; DUS-like_FMN-bd.
DR InterPro; IPR001269; DUS_fam.
DR InterPro; IPR004653; DusA.
DR InterPro; IPR018517; tRNA_hU_synthase_CS.
DR PANTHER; PTHR42907; FMN-LINKED OXIDOREDUCTASES SUPERFAMILY PROTEIN; 1.
DR PANTHER; PTHR42907:SF1; FMN-LINKED OXIDOREDUCTASES SUPERFAMILY PROTEIN; 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, ECO:0000256|HAMAP-
KW Rule:MF_02041};
KW FMN {ECO:0000256|ARBA:ARBA00022643, ECO:0000256|HAMAP-Rule:MF_02041};
KW NADP {ECO:0000256|HAMAP-Rule:MF_02041};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002, ECO:0000256|HAMAP-
KW Rule:MF_02041}; Plasmid {ECO:0000313|EMBL:VEH85587.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000054859};
KW RNA-binding {ECO:0000256|ARBA:ARBA00022884, ECO:0000256|HAMAP-
KW Rule:MF_02041};
KW tRNA processing {ECO:0000256|ARBA:ARBA00022694, ECO:0000256|HAMAP-
KW Rule:MF_02041}; tRNA-binding {ECO:0000256|HAMAP-Rule:MF_02041}.
FT DOMAIN 26..326
FT /note="DUS-like FMN-binding"
FT /evidence="ECO:0000259|Pfam:PF01207"
FT ACT_SITE 110
FT /note="Proton donor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02041,
FT ECO:0000256|PIRSR:PIRSR006621-1"
FT BINDING 80
FT /ligand="FMN"
FT /ligand_id="ChEBI:CHEBI:58210"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02041"
FT BINDING 149
FT /ligand="FMN"
FT /ligand_id="ChEBI:CHEBI:58210"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02041"
FT BINDING 181
FT /ligand="FMN"
FT /ligand_id="ChEBI:CHEBI:58210"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02041"
FT BINDING 243..244
FT /ligand="FMN"
FT /ligand_id="ChEBI:CHEBI:58210"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02041"
FT SITE 107
FT /note="Interacts with tRNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02041"
FT SITE 193
FT /note="Interacts with tRNA; defines subfamily-specific
FT binding signature"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02041"
FT SITE 196
FT /note="Interacts with tRNA"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_02041"
SQ SEQUENCE 345 AA; 38654 MW; F8ED4BE40970BD31 CRC64;
MTYNLGLYFI KNLIMTYSSL FSQIAIAPMI DWTNTHFRIF MRLLAPQALL YTDMQTPGAI
FNNPGKALYY QPVEHPLALQ LGGSVVSELV ECAKKAEKLG FKEINLNLGC PSDRVLAGKF
GACLMSEPNH VAECIKALKE SVSLPVTAKT RIGIDNQDSY SFFSNFVFHL VEAGCDKLIV
HARKAWLKGL SPKQNRTIPP LHYDYVYAIK KDLPHVPVVI NGNIKTIDDI RDHLEHVDGV
MLGRLVCDNP YAIAEIHKAI FPEDRMLTRA EVVSLYVAYI REALEKAAPL SILLKPLFNL
MHGLANSKAW KAELLRIQQQ KDTTSLTQLP VLIKNLTQAK VSIPN
//