SYT_FRAT1
ID SYT_FRAT1 Reviewed; 634 AA.
AC Q14I20;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 22-AUG-2006, sequence version 1.
DT 03-AUG-2022, entry version 94.
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=FTF0817;
OS Francisella tularensis subsp. tularensis (strain FSC 198).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Thiotrichales;
OC Francisellaceae; Francisella.
OX NCBI_TaxID=393115;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=FSC 198;
RX PubMed=17406676; DOI=10.1371/journal.pone.0000352;
RA Chaudhuri R.R., Ren C.-P., Desmond L., Vincent G.A., Silman N.J.,
RA Brehm J.K., Elmore M.J., Hudson M.J., Forsman M., Isherwood K.E.,
RA Gurycova D., Minton N.P., Titball R.W., Pallen M.J., Vipond R.;
RT "Genome sequencing shows that European isolates of Francisella tularensis
RT subspecies tularensis are almost identical to US laboratory strain Schu
RT S4.";
RL PLoS ONE 2:E352-E352(2007).
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 -!- SIMILARITY: Belongs to the class-II aminoacyl-tRNA synthetase family.
CC {ECO:0000255|HAMAP-Rule:MF_00184}.
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DR EMBL; AM286280; CAL08833.1; -; Genomic_DNA.
DR RefSeq; WP_003020750.1; NC_008245.1.
DR AlphaFoldDB; Q14I20; -.
DR SMR; Q14I20; -.
DR PRIDE; Q14I20; -.
DR KEGG; ftf:FTF0817; -.
DR HOGENOM; CLU_008554_0_1_6; -.
DR OMA; FYYDFAY; -.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
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:0006435; P:threonyl-tRNA aminoacylation; IEA:UniProtKB-UniRule.
DR CDD; cd00771; ThrRS_core; 1.
DR Gene3D; 3.10.20.30; -; 1.
DR Gene3D; 3.30.930.10; -; 1.
DR Gene3D; 3.40.50.800; -; 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; IPR012675; Beta-grasp_dom_sf.
DR InterPro; IPR004095; TGS.
DR InterPro; IPR012676; TGS-like.
DR InterPro; IPR002320; Thr-tRNA-ligase_IIa.
DR InterPro; IPR018163; Thr/Ala-tRNA-synth_IIc_edit.
DR InterPro; IPR033728; ThrRS_core.
DR InterPro; IPR012947; tRNA_SAD.
DR PANTHER; PTHR11451; PTHR11451; 1.
DR Pfam; PF03129; HGTP_anticodon; 1.
DR Pfam; PF02824; TGS; 1.
DR Pfam; PF00587; tRNA-synt_2b; 1.
DR Pfam; PF07973; tRNA_SAD; 1.
DR PRINTS; PR01047; TRNASYNTHTHR.
DR SMART; SM00863; tRNA_SAD; 1.
DR SUPFAM; SSF55186; SSF55186; 1.
DR SUPFAM; SSF55681; SSF55681; 1.
DR SUPFAM; SSF81271; SSF81271; 1.
DR TIGRFAMs; TIGR00418; thrS; 1.
DR PROSITE; PS50862; AA_TRNA_LIGASE_II; 1.
DR PROSITE; PS51880; TGS; 1.
PE 3: Inferred from homology;
KW Aminoacyl-tRNA synthetase; ATP-binding; Cytoplasm; Ligase; Metal-binding;
KW Nucleotide-binding; Protein biosynthesis; RNA-binding; tRNA-binding; Zinc.
FT CHAIN 1..634
FT /note="Threonine--tRNA ligase"
FT /id="PRO_1000020390"
FT DOMAIN 1..61
FT /note="TGS"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01228"
FT REGION 241..532
FT /note="Catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT BINDING 332
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT BINDING 383
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT BINDING 509
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
SQ SEQUENCE 634 AA; 72390 MW; 676E8B169A421B85 CRC64;
MINIRFPDGS IREFEAGVNS LDVAKSISPS LAKATMAAYI DDQLKDAKDA INSNCELRLI
TVKDPEGLEI LRHSCAHLLA HAVKELYPNT EVTIGPVVDN GFYYDFSFKE SIGEADLPTI
EKKMKELAKK SAPISYRVVP KAEAIEFFKA QGENYKVEII DSIADEQMKI YTQDNFSDLC
RGPHIPNTSV LKAFKLTKLA GAYWRGNSDN EMLTRIYGTC WATKEDLEQY LNMLEEAEKR
DHRKIGKVLD LFHFQEDSPG IAFWHDNGVR IWRQVEDYMR ASNNKYGCSE IRTPLIADFS
LWQKSGHASK YAENMFATKS ENRDFAIRPM NCPTCVQVYN TKLHSYRDLP IRMAEFGIVH
RNEPSGSLHG LLRVRSFTQD DGHIFCTPEQ VEEEVILMVQ QCFEVYKDFG FNDFAVKIAL
RPENRIGDDE TWDKSEQMLK NALDANNVSY ELLPGEGAFY GPKIEFHLKD AIGRSWQCGT
IQLDFSMPQR LGATYIDKNG EKQVPVMLHR AIVGSLERFI GMLIEHYAGN LPLWLAPVQV
AVMGISNNQD DYCKEVFIML EKNGIRAKLD LRNEKIGFKI REHTLLRVPY LVILGKNEQE
QKIITIRKHS GEDLGQMSVD DFCAFLDKQI QAKE
