THII_SALNS
ID THII_SALNS Reviewed; 482 AA.
AC B4SWR7;
DT 24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT 23-SEP-2008, sequence version 1.
DT 03-AUG-2022, entry version 69.
DE RecName: Full=tRNA sulfurtransferase {ECO:0000255|HAMAP-Rule:MF_00021};
DE EC=2.8.1.4 {ECO:0000255|HAMAP-Rule:MF_00021};
DE AltName: Full=Sulfur carrier protein ThiS sulfurtransferase {ECO:0000255|HAMAP-Rule:MF_00021};
DE AltName: Full=Thiamine biosynthesis protein ThiI {ECO:0000255|HAMAP-Rule:MF_00021};
DE AltName: Full=tRNA 4-thiouridine synthase {ECO:0000255|HAMAP-Rule:MF_00021};
GN Name=thiI {ECO:0000255|HAMAP-Rule:MF_00021};
GN OrderedLocusNames=SNSL254_A0472;
OS Salmonella newport (strain SL254).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Salmonella.
OX NCBI_TaxID=423368;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SL254;
RX PubMed=21602358; DOI=10.1128/jb.00297-11;
RA Fricke W.F., Mammel M.K., McDermott P.F., Tartera C., White D.G.,
RA Leclerc J.E., Ravel J., Cebula T.A.;
RT "Comparative genomics of 28 Salmonella enterica isolates: evidence for
RT CRISPR-mediated adaptive sublineage evolution.";
RL J. Bacteriol. 193:3556-3568(2011).
CC -!- FUNCTION: Catalyzes the ATP-dependent transfer of a sulfur to tRNA to
CC produce 4-thiouridine in position 8 of tRNAs, which functions as a
CC near-UV photosensor. Also catalyzes the transfer of sulfur to the
CC sulfur carrier protein ThiS, forming ThiS-thiocarboxylate. This is a
CC step in the synthesis of thiazole, in the thiamine biosynthesis
CC pathway. The sulfur is donated as persulfide by IscS.
CC {ECO:0000255|HAMAP-Rule:MF_00021}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[ThiI sulfur-carrier protein]-S-sulfanyl-L-cysteine + a
CC uridine in tRNA + ATP + H(+) + 2 reduced [2Fe-2S]-[ferredoxin] =
CC [ThiI sulfur-carrier protein]-L-cysteine + a 4-thiouridine in tRNA +
CC AMP + diphosphate + 2 oxidized [2Fe-2S]-[ferredoxin];
CC Xref=Rhea:RHEA:24176, Rhea:RHEA-COMP:10000, Rhea:RHEA-COMP:10001,
CC Rhea:RHEA-COMP:13337, Rhea:RHEA-COMP:13338, Rhea:RHEA-COMP:13339,
CC Rhea:RHEA-COMP:13340, ChEBI:CHEBI:15378, ChEBI:CHEBI:29950,
CC ChEBI:CHEBI:30616, ChEBI:CHEBI:33019, ChEBI:CHEBI:33737,
CC ChEBI:CHEBI:33738, ChEBI:CHEBI:61963, ChEBI:CHEBI:65315,
CC ChEBI:CHEBI:136798, ChEBI:CHEBI:456215; EC=2.8.1.4;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00021};
CC -!- CATALYTIC ACTIVITY:
CC Reaction=[sulfur-carrier protein ThiS]-C-terminal Gly-Gly-AMP + AH2 +
CC S-sulfanyl-L-cysteinyl-[cysteine desulfurase] = [sulfur-carrier
CC protein ThiS]-C-terminal Gly-NH-CH2-C(O)SH + A + AMP + H(+) + L-
CC cysteinyl-[cysteine desulfurase]; Xref=Rhea:RHEA:43340, Rhea:RHEA-
CC COMP:12157, Rhea:RHEA-COMP:12158, Rhea:RHEA-COMP:12908, Rhea:RHEA-
CC COMP:12910, ChEBI:CHEBI:13193, ChEBI:CHEBI:15378, ChEBI:CHEBI:17499,
CC ChEBI:CHEBI:29950, ChEBI:CHEBI:61963, ChEBI:CHEBI:90618,
CC ChEBI:CHEBI:90619, ChEBI:CHEBI:456215; Evidence={ECO:0000255|HAMAP-
CC Rule:MF_00021};
CC -!- PATHWAY: Cofactor biosynthesis; thiamine diphosphate biosynthesis.
CC {ECO:0000255|HAMAP-Rule:MF_00021}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00021}.
CC -!- SIMILARITY: Belongs to the ThiI family. {ECO:0000255|HAMAP-
CC Rule:MF_00021}.
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DR EMBL; CP001113; ACF65434.1; -; Genomic_DNA.
DR RefSeq; WP_000668650.1; NZ_CCMR01000003.1.
DR AlphaFoldDB; B4SWR7; -.
DR SMR; B4SWR7; -.
DR EnsemblBacteria; ACF65434; ACF65434; SNSL254_A0472.
DR KEGG; see:SNSL254_A0472; -.
DR HOGENOM; CLU_037952_4_1_6; -.
DR OMA; SMPEFCG; -.
DR UniPathway; UPA00060; -.
DR Proteomes; UP000008824; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0004810; F:tRNA adenylyltransferase activity; IEA:InterPro.
DR GO; GO:0000049; F:tRNA binding; IEA:UniProtKB-UniRule.
DR GO; GO:0140741; F:tRNA U4 sulfurtransferase; IEA:UniProtKB-EC.
DR GO; GO:0009228; P:thiamine biosynthetic process; IEA:UniProtKB-UniRule.
DR GO; GO:0009229; P:thiamine diphosphate biosynthetic process; IEA:UniProtKB-UniPathway.
DR GO; GO:0052837; P:thiazole biosynthetic process; IEA:InterPro.
DR GO; GO:0034227; P:tRNA thio-modification; IEA:UniProtKB-UniRule.
DR CDD; cd01712; ThiI; 1.
DR Gene3D; 3.40.250.10; -; 1.
DR Gene3D; 3.40.50.620; -; 1.
DR HAMAP; MF_00021; ThiI; 1.
DR InterPro; IPR001763; Rhodanese-like_dom.
DR InterPro; IPR036873; Rhodanese-like_dom_sf.
DR InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR InterPro; IPR026340; Thiazole_biosynth_dom.
DR InterPro; IPR020536; ThiI_AANH.
DR InterPro; IPR004114; THUMP_dom.
DR InterPro; IPR003720; tRNA_STrfase.
DR Pfam; PF02568; ThiI; 1.
DR Pfam; PF02926; THUMP; 1.
DR SMART; SM00981; THUMP; 1.
DR SUPFAM; SSF52821; SSF52821; 1.
DR TIGRFAMs; TIGR04271; ThiI_C_thiazole; 1.
DR TIGRFAMs; TIGR00342; TIGR00342; 1.
DR PROSITE; PS50206; RHODANESE_3; 1.
DR PROSITE; PS51165; THUMP; 1.
PE 3: Inferred from homology;
KW ATP-binding; Cytoplasm; Disulfide bond; Nucleotide-binding;
KW Redox-active center; RNA-binding; Thiamine biosynthesis; Transferase;
KW tRNA-binding.
FT CHAIN 1..482
FT /note="tRNA sulfurtransferase"
FT /id="PRO_1000090032"
FT DOMAIN 61..165
FT /note="THUMP"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00021"
FT DOMAIN 404..482
FT /note="Rhodanese"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00021"
FT ACT_SITE 456
FT /note="Cysteine persulfide intermediate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00021"
FT BINDING 183..184
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00021"
FT BINDING 265
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00021"
FT BINDING 287
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00021"
FT BINDING 296
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00021"
FT DISULFID 344..456
FT /note="Redox-active"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00021"
SQ SEQUENCE 482 AA; 54803 MW; 71904AE5D6B17D6E CRC64;
MKFIIKLFPE ITIKSQSVRL RFIKILTGNI RNVLKHYDET LAVVRHWDNI EVRAKDENQR
LAIRDALTRI PGIHHILEVE DVPFTDMHDI FEKALAQYRE QLEGKTFCVR VKRRGKHEFS
SIEVERYVGG GLNQHIESAR VKLTNPDVTV HLEVEDDRLL LIKGRYEGIG GFPIGTQEDV
LSLISGGFDS GVSSYMLMRR GCRVHYCFFN LGGAAHEIGV RQVAHYLWNR FGSSHRVRFV
AINFEPVVGE ILEKVDDGQM GVVLKRMMVR AASKVAERYG VQALVTGEAL GQVSSQTLTN
LRLIDNVSDT LILRPLISYD KEHIINLARQ IGTEDFARTM PEYCGVISKS PTVKAIKAKI
EAEEENFDFS ILDKVVEEAN NVDIREIAQQ TQQEVVEVET VSGFGPNDVI LDIRSVDEQD
DKPLKVEGVD VVSLPFYKLS TKFGDLDQSK TWLLWCERGV MSRLQALYLR EQGFANVKVY
RP
