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THII_ACHLI
ID   THII_ACHLI              Reviewed;         412 AA.
AC   A9NHG7;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   05-FEB-2008, sequence version 1.
DT   03-AUG-2022, entry version 84.
DE   RecName: Full=Probable 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}; OrderedLocusNames=ACL_1198;
OS   Acholeplasma laidlawii (strain PG-8A).
OC   Bacteria; Tenericutes; Mollicutes; Acholeplasmatales; Acholeplasmataceae;
OC   Acholeplasma.
OX   NCBI_TaxID=441768;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PG-8A;
RX   PubMed=21784942; DOI=10.1128/jb.05059-11;
RA   Lazarev V.N., Levitskii S.A., Basovskii Y.I., Chukin M.M., Akopian T.A.,
RA   Vereshchagin V.V., Kostrjukova E.S., Kovaleva G.Y., Kazanov M.D.,
RA   Malko D.B., Vitreschak A.G., Sernova N.V., Gelfand M.S., Demina I.A.,
RA   Serebryakova M.V., Galyamina M.A., Vtyurin N.N., Rogov S.I., Alexeev D.G.,
RA   Ladygina V.G., Govorun V.M.;
RT   "Complete genome and proteome of Acholeplasma laidlawii.";
RL   J. Bacteriol. 193:4943-4953(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; CP000896; ABX81797.1; -; Genomic_DNA.
DR   AlphaFoldDB; A9NHG7; -.
DR   SMR; A9NHG7; -.
DR   STRING; 441768.ACL_1198; -.
DR   EnsemblBacteria; ABX81797; ABX81797; ACL_1198.
DR   KEGG; acl:ACL_1198; -.
DR   eggNOG; COG0301; Bacteria.
DR   HOGENOM; CLU_037952_4_0_14; -.
DR   OMA; SMPEFCG; -.
DR   OrthoDB; 773697at2; -.
DR   UniPathway; UPA00060; -.
DR   Proteomes; UP000008558; 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:0034227; P:tRNA thio-modification; IEA:UniProtKB-UniRule.
DR   CDD; cd01712; ThiI; 1.
DR   Gene3D; 3.40.50.620; -; 1.
DR   HAMAP; MF_00021; ThiI; 1.
DR   InterPro; IPR014729; Rossmann-like_a/b/a_fold.
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   TIGRFAMs; TIGR00342; TIGR00342; 1.
DR   PROSITE; PS51165; THUMP; 1.
PE   3: Inferred from homology;
KW   ATP-binding; Cytoplasm; Nucleotide-binding; Reference proteome;
KW   RNA-binding; Thiamine biosynthesis; Transferase; tRNA-binding.
FT   CHAIN           1..412
FT                   /note="Probable tRNA sulfurtransferase"
FT                   /id="PRO_1000074196"
FT   DOMAIN          58..163
FT                   /note="THUMP"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00021"
FT   BINDING         181..182
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00021"
FT   BINDING         206..207
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"
SQ   SEQUENCE   412 AA;  46583 MW;  8C834B5D709FAF47 CRC64;
     MEKAILIRFG DLVLKGKNKP KFIGQIKKNI RSKLKNVNVE YTFQHDRIYV HFNEVDSDEV
     IKQLGYVSGI HSFSYIYKTT KDIESIAQLA KEVIQKEVKL PTTFKIETKR TDKNYPLKSL
     EISQKVASLV LPSFDGLKVE VRNPETVLDI ELRSEGTYIY VGKIPALGGF PIGLGGKGLV
     MLSGGIDSPV AAHLMMKQGI DVELFHFEST PLTPLESVQK VIEIAKKLAY YTPYNKIKLH
     LVPFTKIHEA ILSYVADPYI ITIMRRMFYR LGEIYANQHG LDTLINGESV GQVASQTLSS
     IKVIENVTSI PILRPVITYD KNDIINISKK IDTYDISILP FNDCCSIYVP RNPVTKPTID
     QALKEESRFE FKELLEDALK NVQTMIITPT TDFEIALHGF DVKDALSSYT QE
 
 
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