SYT_THESM
ID SYT_THESM Reviewed; 625 AA.
AC C6A1R1;
DT 22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT 01-SEP-2009, sequence version 1.
DT 03-AUG-2022, entry version 76.
DE RecName: Full=Threonine--tRNA ligase {ECO:0000255|HAMAP-Rule:MF_00184};
DE EC=6.1.1.3 {ECO:0000255|HAMAP-Rule:MF_00184};
DE AltName: Full=Threonyl-tRNA synthetase {ECO:0000255|HAMAP-Rule:MF_00184};
DE Short=ThrRS {ECO:0000255|HAMAP-Rule:MF_00184};
GN Name=thrS {ECO:0000255|HAMAP-Rule:MF_00184}; OrderedLocusNames=TSIB_0490;
OS Thermococcus sibiricus (strain DSM 12597 / MM 739).
OC Archaea; Euryarchaeota; Thermococci; Thermococcales; Thermococcaceae;
OC Thermococcus.
OX NCBI_TaxID=604354;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 12597 / MM 739;
RX PubMed=19447963; DOI=10.1128/aem.00718-09;
RA Mardanov A.V., Ravin N.V., Svetlitchnyi V.A., Beletsky A.V.,
RA Miroshnichenko M.L., Bonch-Osmolovskaya E.A., Skryabin K.G.;
RT "Metabolic versatility and indigenous origin of the archaeon Thermococcus
RT sibiricus, isolated from a siberian oil reservoir, as revealed by genome
RT analysis.";
RL Appl. Environ. Microbiol. 75:4580-4588(2009).
CC -!- FUNCTION: Catalyzes the attachment of threonine to tRNA(Thr) in a two-
CC step reaction: L-threonine is first activated by ATP to form Thr-AMP
CC and then transferred to the acceptor end of tRNA(Thr). Also edits
CC incorrectly charged L-seryl-tRNA(Thr). {ECO:0000255|HAMAP-
CC Rule:MF_00184}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + L-threonine + tRNA(Thr) = AMP + diphosphate + H(+) + L-
CC threonyl-tRNA(Thr); Xref=Rhea:RHEA:24624, Rhea:RHEA-COMP:9670,
CC Rhea:RHEA-COMP:9704, ChEBI:CHEBI:15378, ChEBI:CHEBI:30616,
CC ChEBI:CHEBI:33019, ChEBI:CHEBI:57926, ChEBI:CHEBI:78442,
CC ChEBI:CHEBI:78534, ChEBI:CHEBI:456215; EC=6.1.1.3;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00184};
CC -!- COFACTOR:
CC Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00184};
CC Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00184};
CC -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00184}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00184}.
CC -!- DOMAIN: The N-terminal domain is an archaea-specific tRNA-editing
CC domain that hydrolyzes incorrectly charged L-seryl-tRNA(Thr). Catalysis
CC of tRNA editing is performed by the charged tRNA itself.
CC {ECO:0000255|HAMAP-Rule:MF_00184}.
CC -!- SIMILARITY: Belongs to the class-II aminoacyl-tRNA synthetase family.
CC {ECO:0000255|HAMAP-Rule:MF_00184}.
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DR EMBL; CP001463; ACS89556.1; -; Genomic_DNA.
DR RefSeq; WP_015848776.1; NC_012883.1.
DR AlphaFoldDB; C6A1R1; -.
DR SMR; C6A1R1; -.
DR STRING; 604354.TSIB_0490; -.
DR EnsemblBacteria; ACS89556; ACS89556; TSIB_0490.
DR GeneID; 8095477; -.
DR KEGG; tsi:TSIB_0490; -.
DR eggNOG; arCOG00401; Archaea.
DR HOGENOM; CLU_029833_0_0_2; -.
DR OMA; IATFQID; -.
DR OrthoDB; 11656at2157; -.
DR Proteomes; UP000009079; Chromosome.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0002161; F:aminoacyl-tRNA editing activity; IEA:UniProt.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0004829; F:threonine-tRNA ligase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0000049; F:tRNA binding; IEA:UniProtKB-KW.
DR GO; GO:0008270; F:zinc ion binding; IEA:InterPro.
DR GO; GO:0006435; P:threonyl-tRNA aminoacylation; IEA:UniProtKB-UniRule.
DR Gene3D; 3.30.930.10; -; 1.
DR Gene3D; 3.40.50.800; -; 1.
DR Gene3D; 3.50.80.10; -; 1.
DR HAMAP; MF_00184; Thr_tRNA_synth; 1.
DR InterPro; IPR002314; aa-tRNA-synt_IIb.
DR InterPro; IPR006195; aa-tRNA-synth_II.
DR InterPro; IPR045864; aa-tRNA-synth_II/BPL/LPL.
DR InterPro; IPR004154; Anticodon-bd.
DR InterPro; IPR036621; Anticodon-bd_dom_sf.
DR InterPro; IPR023509; DTD-like_sf.
DR InterPro; IPR002320; Thr-tRNA-ligase_IIa.
DR InterPro; IPR015011; Threonyl-tRNA_syn_edit_dom_arc.
DR PANTHER; PTHR11451; PTHR11451; 1.
DR Pfam; PF03129; HGTP_anticodon; 1.
DR Pfam; PF00587; tRNA-synt_2b; 1.
DR Pfam; PF08915; tRNA-Thr_ED; 1.
DR PRINTS; PR01047; TRNASYNTHTHR.
DR SUPFAM; SSF55681; SSF55681; 1.
DR TIGRFAMs; TIGR00418; thrS; 1.
DR PROSITE; PS50862; AA_TRNA_LIGASE_II; 1.
PE 3: Inferred from homology;
KW Aminoacyl-tRNA synthetase; ATP-binding; Cytoplasm; Ligase; Metal-binding;
KW Nucleotide-binding; Protein biosynthesis; Reference proteome; RNA-binding;
KW tRNA-binding; Zinc.
FT CHAIN 1..625
FT /note="Threonine--tRNA ligase"
FT /id="PRO_1000203928"
FT REGION 1..147
FT /note="Editing domain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT REGION 206..505
FT /note="Catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT BINDING 298
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT BINDING 350
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT BINDING 474
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
SQ SEQUENCE 625 AA; 73363 MW; 954320303D92D611 CRC64;
MRILLIHSDY LEYEVKDKAL KKPEEISENQ KKGRLDEVLA VFMSVEKVDE QNPEEIVKKA
VKEIEEVVSQ VKTNNIFVYP FAHLSSELGS PDVALRILKE IENELKNKGY NVRRAPFGYY
KAFKLSCKGH PLAELSRTIV PGEAKKEEEV PEALKKEEEL VSYWYILTPE GELVEVDKFD
FSGYENLKKF ANYEINKSRL VTEEPPHVKI MLEQELVDYE EGSDPGNLRY YPKGRLIKSL
LENYVTDKVI EYGAMEVETP IMYDFEHPAL EKYLNRFPAR QYVVKSGDKR FFLRFAACFG
QFLIKKDATI SYRHLPLRMY ELTRYSFRRE KRGELSGLRR LRAFTMPDMH TVAKNLQQAM
EEFKKQYKLS MEVLKGVGLT PEDYEVAIRF TEDFWNENKD FIVDLAGIIG KPVLIEMWKQ
RFFYFILKFE FNFVDNLDKA AALSTVQIDV ENSQRFGITY YDEEGQEKYP LLLHCSPSGA
IERVMYAILE KQAKIMKKGK KPMYPLWLSP IQVRIIPVSE KYLDYALYIA GKLEGAKIRA
DVDDRNERLN KKIREAEKEW IPYIIVVGEN EKRMGVITVR KREDNKQYEI QVEDLIKEIR
QKTEGFPYKP RPLPPLVSMR PKFRG
