ID S1NKS2_9ENTE Unreviewed; 322 AA.
AC S1NKS2;
DT 18-SEP-2013, integrated into UniProtKB/TrEMBL.
DT 18-SEP-2013, sequence version 1.
DT 24-JAN-2024, entry version 36.
DE RecName: Full=tRNA-dihydrouridine synthase {ECO:0000256|PIRNR:PIRNR006621};
DE EC=1.3.1.- {ECO:0000256|PIRNR:PIRNR006621};
GN ORFNames=OMK_02283 {ECO:0000313|EMBL:EOT39287.1};
OS Enterococcus dispar ATCC 51266.
OC Bacteria; Bacillota; Bacilli; Lactobacillales; Enterococcaceae;
OC Enterococcus.
OX NCBI_TaxID=1139219 {ECO:0000313|EMBL:EOT39287.1, ECO:0000313|Proteomes:UP000014127};
RN [1] {ECO:0000313|EMBL:EOT39287.1, ECO:0000313|Proteomes:UP000014127}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 51266 {ECO:0000313|EMBL:EOT39287.1,
RC ECO:0000313|Proteomes:UP000014127};
RG The Broad Institute Genomics Platform;
RG The Broad Institute Genome Sequencing Center for Infectious Disease;
RA Earl A., Russ C., Gilmore M., Surin D., Walker B., Young S., Zeng Q.,
RA Gargeya S., Fitzgerald M., Haas B., Abouelleil A., Allen A.W., Alvarado L.,
RA Arachchi H.M., Berlin A.M., Chapman S.B., Gainer-Dewar J., Goldberg J.,
RA Griggs A., Gujja S., Hansen M., Howarth C., Imamovic A., Ireland A.,
RA Larimer J., McCowan C., Murphy C., Pearson M., Poon T.W., Priest M.,
RA Roberts A., Saif S., Shea T., Sisk P., Sykes S., Wortman J., Nusbaum C.,
RA Birren B.;
RT "The Genome Sequence of Enterococcus dispar ATCC_51266 (Illumina only
RT assembly).";
RL Submitted (MAR-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:EOT39287.1}.
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DR EMBL; AHYR01000011; EOT39287.1; -; Genomic_DNA.
DR RefSeq; WP_016173403.1; NZ_KE136354.1.
DR AlphaFoldDB; S1NKS2; -.
DR STRING; 44009.RV01_GL001819; -.
DR PATRIC; fig|1139219.3.peg.2227; -.
DR eggNOG; COG0042; Bacteria.
DR HOGENOM; CLU_013299_0_3_9; -.
DR OrthoDB; 9764501at2; -.
DR Proteomes; UP000014127; 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; IPR024036; tRNA-dHydroUridine_Synthase_C.
DR InterPro; IPR018517; tRNA_hU_synthase_CS.
DR PANTHER; PTHR11082:SF25; DUS DOMAIN-CONTAINING PROTEIN; 1.
DR PANTHER; PTHR11082; TRNA-DIHYDROURIDINE SYNTHASE; 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 Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW ECO:0000256|PIRNR:PIRNR006621};
KW Reference proteome {ECO:0000313|Proteomes:UP000014127};
KW RNA-binding {ECO:0000256|ARBA:ARBA00022884};
KW tRNA processing {ECO:0000256|ARBA:ARBA00022694,
KW ECO:0000256|PIRNR:PIRNR006621}.
FT DOMAIN 16..318
FT /note="DUS-like FMN-binding"
FT /evidence="ECO:0000259|Pfam:PF01207"
FT ACT_SITE 105
FT /note="Proton donor"
FT /evidence="ECO:0000256|PIRSR:PIRSR006621-1"
SQ SEQUENCE 322 AA; 36193 MW; 5E62616E05F89382 CRC64;
MTNNFWAELP KPFFVLAPME DVTDVAFRHV VKVAGAPDVF FTEFTNSDSF CHPDGIESVR
GRLVFTEDEQ PMVAHIWGDN PAFFNKMSIE LAKMGFKGID INMGCPVPNV AERGKGSGLI
LRPEVAAELI TAAKSGGLPV SVKTRIGFTD SGELEAWISH LLKQNIANLS VHMRTRKEMS
KVAAHWDLIP IIVKLRDQIA PQTTITINGD ILDRQMGLDL AEKYGVDGIM IGRGVFKNPY
AFEKNPKEHT PQELMGLLRL QLDLQEQYAK EVPRSIVGLH RFFKIYIKGF PGANDLRIRL
METKSITEVR EILTAFEQEH FN
//
