SYT_METAR
ID SYT_METAR Reviewed; 641 AA.
AC Q0W3X9;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 05-SEP-2006, sequence version 1.
DT 03-AUG-2022, entry version 102.
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=UNCMA_13230;
GN ORFNames=RCIX1693;
OS Methanocella arvoryzae (strain DSM 22066 / NBRC 105507 / MRE50).
OC Archaea; Euryarchaeota; Stenosarchaea group; Methanomicrobia;
OC Methanocellales; Methanocellaceae; Methanocella.
OX NCBI_TaxID=351160;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=DSM 22066 / NBRC 105507 / MRE50;
RX PubMed=16857943; DOI=10.1126/science.1127062;
RA Erkel C., Kube M., Reinhardt R., Liesack W.;
RT "Genome of rice cluster I archaea -- the key methane producers in the rice
RT rhizosphere.";
RL Science 313:370-372(2006).
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; AM114193; CAJ36914.1; -; Genomic_DNA.
DR RefSeq; WP_012035651.1; NC_009464.1.
DR AlphaFoldDB; Q0W3X9; -.
DR SMR; Q0W3X9; -.
DR STRING; 351160.RCIX1693; -.
DR PRIDE; Q0W3X9; -.
DR EnsemblBacteria; CAJ36914; CAJ36914; RCIX1693.
DR GeneID; 5143783; -.
DR KEGG; rci:RCIX1693; -.
DR PATRIC; fig|351160.9.peg.1363; -.
DR eggNOG; arCOG00401; Archaea.
DR OMA; IATFQID; -.
DR OrthoDB; 11656at2157; -.
DR Proteomes; UP000000663; 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..641
FT /note="Threonine--tRNA ligase"
FT /id="PRO_1000020548"
FT REGION 1..154
FT /note="Editing domain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT REGION 216..516
FT /note="Catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT BINDING 308
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT BINDING 360
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT BINDING 485
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
SQ SEQUENCE 641 AA; 73258 MW; AC2A20915FA06FEE CRC64;
MQLLLIHSDF IEYEVKKSTP VAEKIEDAVR SGRMEEALTA FAAVEKPDES NPQYVIEKGL
EAIIKVAEQV KTTRVMLYPY AHLSANLSSP KMAVEVLKGL EAALKGKGFE VARAPFGWYK
AFTIKCKGHP LSELSRTIRP EGVEAVSVTP AVAAEKPEVV SEAVKAEEKL KSYFYILDVD
GQLKDPKTFD YKGHDKLKAF VDYEMAKKRA VDREPPHVEL MRRLELADYE PGSDPGNMRW
YPKGRAMKNM LEQFVLSEAA KKGAMEVETP IMYDMEHPTL KKYLDRFPAR QYTVIADKKN
LFLRFAACFG QFLMNHDMTI SYRNLPLKMI ELTRYSFRKE QRGELVGLRR LRAFTMPDMH
TLCTDMDGAI KEFGDQYEMC INTLDTIGID IKTDYEVAIR FTKDFYNNNT PFIQSLVKRA
GKPVIVEMWE ERFFYFVLKF EFNYIDSLNK ASALSTVQID VENAERYDIN YVDQNGNRQR
PIILHCSPSG AIERCIYGLL EKEAMESEKG AVPMLPVWLS PTQVRIVTIS EKHVPFAEAL
ADRMCNVRVD IDDREETVGK KIRDAGKEWI PYVVTIGDAE MNGDKIPVVV RAESQQNKPA
KVEMTVEELV ERIHKETACL PYRPLPVVRS LAKRPKFVGS I
