ID Q1J2A4_DEIGD Unreviewed; 333 AA.
AC Q1J2A4;
DT 13-JUN-2006, integrated into UniProtKB/TrEMBL.
DT 13-JUN-2006, sequence version 1.
DT 24-JAN-2024, entry version 91.
DE RecName: Full=tRNA-dihydrouridine synthase {ECO:0000256|PIRNR:PIRNR006621};
DE EC=1.3.1.- {ECO:0000256|PIRNR:PIRNR006621};
GN OrderedLocusNames=Dgeo_0077 {ECO:0000313|EMBL:ABF44380.1};
OS Deinococcus geothermalis (strain DSM 11300 / AG-3a).
OC Bacteria; Deinococcota; Deinococci; Deinococcales; Deinococcaceae;
OC Deinococcus.
OX NCBI_TaxID=319795 {ECO:0000313|EMBL:ABF44380.1, ECO:0000313|Proteomes:UP000002431};
RN [1] {ECO:0000313|Proteomes:UP000002431}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 11300 / AG-3a {ECO:0000313|Proteomes:UP000002431};
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA Glavina del Rio T., Hammon N., Israni S., Dalin E., Tice H., Pitluck S.,
RA Brettin T., Bruce D., Han C., Tapia R., Saunders E., Gilna P., Schmutz J.,
RA Larimer F., Land M., Hauser L., Kyrpides N., Kim E., Daly M.J.,
RA Fredrickson J.K., Makarova K.S., Gaidamakova E.K., Zhai M., Richardson P.;
RT "Complete sequence of chromosome 1 of Deinococcus geothermalis DSM 11300.";
RL Submitted (APR-2006) 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}.
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DR EMBL; CP000359; ABF44380.1; -; Genomic_DNA.
DR RefSeq; WP_011529227.1; NC_008025.1.
DR AlphaFoldDB; Q1J2A4; -.
DR STRING; 319795.Dgeo_0077; -.
DR KEGG; dge:Dgeo_0077; -.
DR eggNOG; COG0042; Bacteria.
DR HOGENOM; CLU_013299_0_2_0; -.
DR OMA; RHYTNYF; -.
DR Proteomes; UP000002431; 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; IPR024036; tRNA-dHydroUridine_Synthase_C.
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.
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:UP000002431};
KW RNA-binding {ECO:0000256|ARBA:ARBA00022884};
KW tRNA processing {ECO:0000256|PIRNR:PIRNR006621}.
FT DOMAIN 19..313
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 333 AA; 35283 MW; 4D16C717528CCDBB CRC64;
MICGPGFYAR RLARPGAVLA PMAGYSDAPM RQLAAEQGAL WTVSEMISAR GLVLGGDSEK
LTLGRPYPGE VGRVVQLFGA EPDVLAQAVA RAESWFAPAA LDLNMGCPVP KVKGRGGACL
LQTPEVAYTL VRAMRSATTL DVSAKIRLGW DTDRSVEIAQ GLAAAGAALI TVHGRTSVQR
YSGEADWDAI ARVAASVKVP VVGSGDVKSA EQARARLNTG VAAVMIGRGA VGNPWLFRAL
ASGDDVVPSA QERARTALRH AQLHVTFYGP DRFGLLSVRP LRKVLPHYLP DHPELRAALV
QVNTVADVEQ ALAPLLVDAL PPQTQNFVRM SAE
//