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Database: UniProt
Entry: F6CXK3_MARPP
LinkDB: F6CXK3_MARPP
Original site: F6CXK3_MARPP 
ID   F6CXK3_MARPP            Unreviewed;       357 AA.
AC   F6CXK3;
DT   27-JUL-2011, integrated into UniProtKB/TrEMBL.
DT   27-JUL-2011, sequence version 1.
DT   24-JAN-2024, entry version 59.
DE   RecName: Full=Epoxyqueuosine reductase {ECO:0000256|HAMAP-Rule:MF_00916};
DE            EC=1.17.99.6 {ECO:0000256|HAMAP-Rule:MF_00916};
DE   AltName: Full=Queuosine biosynthesis protein QueG {ECO:0000256|HAMAP-Rule:MF_00916};
GN   Name=queG {ECO:0000256|HAMAP-Rule:MF_00916};
GN   OrderedLocusNames=Mar181_2588 {ECO:0000313|EMBL:AEF55619.1};
OS   Marinomonas posidonica (strain CECT 7376 / NCIMB 14433 / IVIA-Po-181).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Oceanospirillales;
OC   Oceanospirillaceae; Marinomonas.
OX   NCBI_TaxID=491952 {ECO:0000313|EMBL:AEF55619.1, ECO:0000313|Proteomes:UP000009230};
RN   [1] {ECO:0000313|EMBL:AEF55619.1, ECO:0000313|Proteomes:UP000009230}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CECT 7376 / NCIMB 14433 / IVIA-Po-181
RC   {ECO:0000313|Proteomes:UP000009230};
RX   PubMed=23458837; DOI=10.4056/sigs.2976373;
RA   Lucas-Elio P., Goodwin L., Woyke T., Pitluck S., Nolan M., Kyrpides N.C.,
RA   Detter J.C., Copeland A., Lu M., Bruce D., Detter C., Tapia R., Han S.,
RA   Land M.L., Ivanova N., Mikhailova N., Johnston A.W., Sanchez-Amat A.;
RT   "Complete genome sequence of Marinomonas posidonica type strain (IVIA-Po-
RT   181(T)).";
RL   Stand. Genomic Sci. 7:31-43(2012).
CC   -!- FUNCTION: Catalyzes the conversion of epoxyqueuosine (oQ) to queuosine
CC       (Q), which is a hypermodified base found in the wobble positions of
CC       tRNA(Asp), tRNA(Asn), tRNA(His) and tRNA(Tyr). {ECO:0000256|HAMAP-
CC       Rule:MF_00916}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=AH2 + epoxyqueuosine(34) in tRNA = A + H2O + queuosine(34) in
CC         tRNA; Xref=Rhea:RHEA:32159, Rhea:RHEA-COMP:18571, Rhea:RHEA-
CC         COMP:18582, ChEBI:CHEBI:13193, ChEBI:CHEBI:15377, ChEBI:CHEBI:17499,
CC         ChEBI:CHEBI:194431, ChEBI:CHEBI:194443; EC=1.17.99.6;
CC         Evidence={ECO:0000256|HAMAP-Rule:MF_00916};
CC   -!- COFACTOR:
CC       Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC         Evidence={ECO:0000256|HAMAP-Rule:MF_00916};
CC       Note=Binds 2 [4Fe-4S] clusters per monomer. {ECO:0000256|HAMAP-
CC       Rule:MF_00916};
CC   -!- COFACTOR:
CC       Name=cob(II)alamin; Xref=ChEBI:CHEBI:16304;
CC         Evidence={ECO:0000256|HAMAP-Rule:MF_00916};
CC   -!- PATHWAY: tRNA modification; tRNA-queuosine biosynthesis.
CC       {ECO:0000256|HAMAP-Rule:MF_00916}.
CC   -!- SUBUNIT: Monomer. {ECO:0000256|HAMAP-Rule:MF_00916}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000256|HAMAP-Rule:MF_00916}.
CC   -!- SIMILARITY: Belongs to the QueG family. {ECO:0000256|HAMAP-
CC       Rule:MF_00916}.
CC   -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC       feature annotation. {ECO:0000256|HAMAP-Rule:MF_00916}.
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DR   EMBL; CP002771; AEF55619.1; -; Genomic_DNA.
DR   RefSeq; WP_013797091.1; NC_015559.1.
DR   AlphaFoldDB; F6CXK3; -.
DR   STRING; 491952.Mar181_2588; -.
DR   KEGG; mpc:Mar181_2588; -.
DR   eggNOG; COG1600; Bacteria.
DR   HOGENOM; CLU_030790_0_1_6; -.
DR   OrthoDB; 9784571at2; -.
DR   UniPathway; UPA00392; -.
DR   Proteomes; UP000009230; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW.
DR   GO; GO:0031419; F:cobalamin binding; IEA:UniProtKB-KW.
DR   GO; GO:0052693; F:epoxyqueuosine reductase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0008616; P:queuosine biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0008033; P:tRNA processing; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.30.70.20; -; 1.
DR   HAMAP; MF_00916; QueG; 1.
DR   InterPro; IPR017896; 4Fe4S_Fe-S-bd.
DR   InterPro; IPR017900; 4Fe4S_Fe_S_CS.
DR   InterPro; IPR004453; QueG.
DR   InterPro; IPR013542; QueG_DUF1730.
DR   NCBIfam; TIGR00276; tRNA epoxyqueuosine(34) reductase QueG; 1.
DR   PANTHER; PTHR30002; EPOXYQUEUOSINE REDUCTASE; 1.
DR   PANTHER; PTHR30002:SF4; EPOXYQUEUOSINE REDUCTASE; 1.
DR   Pfam; PF13484; Fer4_16; 1.
DR   Pfam; PF08331; QueG_DUF1730; 1.
DR   SUPFAM; SSF54862; 4Fe-4S ferredoxins; 1.
DR   PROSITE; PS00198; 4FE4S_FER_1; 1.
DR   PROSITE; PS51379; 4FE4S_FER_2; 1.
PE   3: Inferred from homology;
KW   4Fe-4S {ECO:0000256|HAMAP-Rule:MF_00916};
KW   Cobalamin {ECO:0000256|HAMAP-Rule:MF_00916};
KW   Cobalt {ECO:0000256|HAMAP-Rule:MF_00916};
KW   Cytoplasm {ECO:0000256|ARBA:ARBA00022490, ECO:0000256|HAMAP-Rule:MF_00916};
KW   Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|HAMAP-Rule:MF_00916};
KW   Iron-sulfur {ECO:0000256|ARBA:ARBA00023014, ECO:0000256|HAMAP-
KW   Rule:MF_00916};
KW   Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW   Rule:MF_00916}; Oxidoreductase {ECO:0000256|HAMAP-Rule:MF_00916};
KW   Queuosine biosynthesis {ECO:0000256|ARBA:ARBA00022785, ECO:0000256|HAMAP-
KW   Rule:MF_00916};
KW   tRNA processing {ECO:0000256|ARBA:ARBA00022694, ECO:0000256|HAMAP-
KW   Rule:MF_00916}.
FT   DOMAIN          186..219
FT                   /note="4Fe-4S ferredoxin-type"
FT                   /evidence="ECO:0000259|PROSITE:PS51379"
FT   ACT_SITE        144
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00916"
FT   BINDING         67
FT                   /ligand="cob(II)alamin"
FT                   /ligand_id="ChEBI:CHEBI:16304"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00916"
FT   BINDING         144
FT                   /ligand="cob(II)alamin"
FT                   /ligand_id="ChEBI:CHEBI:16304"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00916"
FT   BINDING         165
FT                   /ligand="cob(II)alamin"
FT                   /ligand_id="ChEBI:CHEBI:16304"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00916"
FT   BINDING         168
FT                   /ligand="cob(II)alamin"
FT                   /ligand_id="ChEBI:CHEBI:16304"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00916"
FT   BINDING         179
FT                   /ligand="cob(II)alamin"
FT                   /ligand_id="ChEBI:CHEBI:16304"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00916"
FT   BINDING         199
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00916"
FT   BINDING         202
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00916"
FT   BINDING         205
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00916"
FT   BINDING         209
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00916"
FT   BINDING         225
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00916"
FT   BINDING         227
FT                   /ligand="cob(II)alamin"
FT                   /ligand_id="ChEBI:CHEBI:16304"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00916"
FT   BINDING         234
FT                   /ligand="tRNA"
FT                   /ligand_id="ChEBI:CHEBI:17843"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00916"
FT   BINDING         252..253
FT                   /ligand="cob(II)alamin"
FT                   /ligand_id="ChEBI:CHEBI:16304"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00916"
FT   BINDING         252
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00916"
FT   BINDING         255
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="2"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00916"
FT   BINDING         259
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00916"
SQ   SEQUENCE   357 AA;  40741 MW;  06BD4C488AADA776 CRC64;
     MLPSSLSNPD DLAQLAVDIK AWATEFGFAE ARIVDPDLGQ HKDQFNNWLD KGYHAGMDYL
     ANHGDMRFYP EQLHPGTRRV ISLRMHYLPQ SVETVKRLHT KEKAYIARYA LGRDYHKLIR
     KRLTQLAKKI EAKIGDHGYR AFVDSAPILE RQIAEQAGMG WIGKNTLLLT PKAGSWFLLG
     EIFTNLPLPV DGATKTRHCG SCDACLTQCP TDAFVEPWVL DASKCISYLT IEHKGPIPEE
     LRDKMGNRIF GCDDCQLVCP WTKFAKYTEE EDFQPRHNLD SSDLVELFQW NEETFLKNTE
     GSPIRRTGYE NWQRNIAVAL GNAKTTDDIL DALKKALKHS SPLVQEHIEW ALKQHNH
//
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