ID A0A098QYS0_9SPIO Unreviewed; 326 AA.
AC A0A098QYS0;
DT 07-JAN-2015, integrated into UniProtKB/TrEMBL.
DT 07-JAN-2015, sequence version 1.
DT 24-JAN-2024, entry version 27.
DE RecName: Full=tRNA-dihydrouridine synthase {ECO:0000256|PIRNR:PIRNR006621};
DE EC=1.3.1.- {ECO:0000256|PIRNR:PIRNR006621};
GN ORFNames=DC28_06395 {ECO:0000313|EMBL:KGE72676.1};
OS Spirochaeta lutea.
OC Bacteria; Spirochaetota; Spirochaetia; Spirochaetales; Spirochaetaceae;
OC Spirochaeta.
OX NCBI_TaxID=1480694 {ECO:0000313|EMBL:KGE72676.1, ECO:0000313|Proteomes:UP000029692};
RN [1] {ECO:0000313|EMBL:KGE72676.1, ECO:0000313|Proteomes:UP000029692}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JC230 {ECO:0000313|EMBL:KGE72676.1,
RC ECO:0000313|Proteomes:UP000029692};
RA Shivani Y., Subhash Y., Tushar L., Sasikala C., Ramana C.V.;
RT "De novo Genome Sequence of Spirocheata sp.";
RL Submitted (MAY-2014) 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|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:KGE72676.1}.
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DR EMBL; JNUP01000049; KGE72676.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A098QYS0; -.
DR STRING; 1480694.DC28_06395; -.
DR eggNOG; COG0042; Bacteria.
DR Proteomes; UP000029692; 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 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.
PE 3: Inferred from homology;
KW Flavoprotein {ECO:0000256|PIRNR:PIRNR006621};
KW FMN {ECO:0000256|PIRNR:PIRNR006621};
KW Oxidoreductase {ECO:0000256|PIRNR:PIRNR006621};
KW Reference proteome {ECO:0000313|Proteomes:UP000029692};
KW RNA-binding {ECO:0000256|ARBA:ARBA00022884};
KW tRNA processing {ECO:0000256|PIRNR:PIRNR006621}.
FT DOMAIN 13..323
FT /note="DUS-like FMN-binding"
FT /evidence="ECO:0000259|Pfam:PF01207"
FT ACT_SITE 101
FT /note="Proton donor"
FT /evidence="ECO:0000256|PIRSR:PIRSR006621-1"
SQ SEQUENCE 326 AA; 36729 MW; 1D25F59809EF1B46 CRC64;
MGFWRDLPRP FTLLAPMEDV TDIVFRDIVC EAGRPHVFFT EFIGAGHLVA GEREALRRTE
YHPRQHPIVA QIWGNNPEDY YKAAVELGQR GFDGLDINMG CPQPKITKKG ACSALITNPA
LAAELIAAAQ EGARAYTAGT DRELPVSVKT RIGFSRPATA EWCGFLLDQG LAALSVHGRI
AAQMSEGEAD WREIRRVSDL RTGRNLPTLI IGNGDLHNHH QLKTYSQRFG AEGLMVGRGI
FENLYIFRDL AKPEFTTFGE SSREEHLGWA RNHLKAYRDA YEGRRNFEIM KKFFKVYLQD
FPGAEELRGR IMETHSYSEA SALLDD
//
