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Database: UniProt
Entry: A0A0F7N1D7_9ACTN
LinkDB: A0A0F7N1D7_9ACTN
Original site: A0A0F7N1D7_9ACTN 
ID   A0A0F7N1D7_9ACTN        Unreviewed;       376 AA.
AC   A0A0F7N1D7;
DT   22-JUL-2015, integrated into UniProtKB/TrEMBL.
DT   22-JUL-2015, sequence version 1.
DT   24-JAN-2024, entry version 23.
DE   RecName: Full=tRNA-dihydrouridine synthase {ECO:0000256|PIRNR:PIRNR006621};
DE            EC=1.3.1.- {ECO:0000256|PIRNR:PIRNR006621};
GN   ORFNames=AA958_09075 {ECO:0000313|EMBL:AKH82355.1};
OS   Streptomyces sp. CNQ-509.
OC   Bacteria; Actinomycetota; Actinomycetes; Kitasatosporales;
OC   Streptomycetaceae; Streptomyces.
OX   NCBI_TaxID=444103 {ECO:0000313|EMBL:AKH82355.1, ECO:0000313|Proteomes:UP000034283};
RN   [1] {ECO:0000313|EMBL:AKH82355.1, ECO:0000313|Proteomes:UP000034283}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CNQ-509 {ECO:0000313|EMBL:AKH82355.1,
RC   ECO:0000313|Proteomes:UP000034283};
RA   Ruckert C., Albersmeier A., Leipoldt F., Winkler A., Zeyhle P.,
RA   Kalinowski J., Heide L., Kaysser L.;
RT   "Complete Genome Sequence of Streptomyces sp. CNQ-509, a Prolific Producer
RT   of Meroterpenoid Chemistry.";
RL   Submitted (MAY-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; CP011492; AKH82355.1; -; Genomic_DNA.
DR   RefSeq; WP_047015702.1; NZ_CP011492.1.
DR   AlphaFoldDB; A0A0F7N1D7; -.
DR   STRING; 444103.AA958_09075; -.
DR   KEGG; strc:AA958_09075; -.
DR   PATRIC; fig|444103.5.peg.1912; -.
DR   OrthoDB; 9764501at2; -.
DR   Proteomes; UP000034283; 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:UP000034283};
KW   RNA-binding {ECO:0000256|ARBA:ARBA00022884};
KW   tRNA processing {ECO:0000256|ARBA:ARBA00022694,
KW   ECO:0000256|PIRNR:PIRNR006621}.
FT   DOMAIN          17..316
FT                   /note="DUS-like FMN-binding"
FT                   /evidence="ECO:0000259|Pfam:PF01207"
FT   ACT_SITE        106
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR006621-1"
SQ   SEQUENCE   376 AA;  40616 MW;  FEDB489CDCE12A8C CRC64;
     MSELQIGPHT VSPPVVLAPM AGITNAPFRT LCREFSGGRG LFVSEMITTR ALVERDAKTM
     RLVHFDGTEK PRSIQLYGVD PVYTGRAARM IADEDLADHI DLNFGCPVPK VTRKGGGSAL
     PYKRNLLRAI LREAVAGAGD LPVTMKMRKG IDDDHLTYLD AGRIAVEEGV TAIALHGRTA
     AQHYGGTADW DAIARLKEHV PEIPVLGNGD IWSAADALRM VRETGCDGVV VGRGCLGRPW
     LFGDLVAAFD GSSEPSARPA LKEVAGVMLR HAELLGQWLG DERRGVIDFR KHVPWYTKGF
     SVGKELRHRM AMAGTLAELD DLLGTLDLDQ PWPEGAEGPR GRTAGRNKVV LPEGWLADPY
     ECAQVDAAAE LDTSGG
//
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