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SYT_STRPF
ID   SYT_STRPF               Reviewed;         647 AA.
AC   Q1J7X1;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   13-JUN-2006, sequence version 1.
DT   03-AUG-2022, entry version 103.
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};
GN   OrderedLocusNames=MGAS10750_Spy0440;
OS   Streptococcus pyogenes serotype M4 (strain MGAS10750).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=370554;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MGAS10750;
RX   PubMed=16636287; DOI=10.1073/pnas.0510279103;
RA   Beres S.B., Richter E.W., Nagiec M.J., Sumby P., Porcella S.F., DeLeo F.R.,
RA   Musser J.M.;
RT   "Molecular genetic anatomy of inter- and intraserotype variation in the
RT   human bacterial pathogen group A Streptococcus.";
RL   Proc. Natl. Acad. Sci. U.S.A. 103:7059-7064(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   -!- SIMILARITY: Belongs to the class-II aminoacyl-tRNA synthetase family.
CC       {ECO:0000255|HAMAP-Rule:MF_00184}.
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DR   EMBL; CP000262; ABF37390.1; -; Genomic_DNA.
DR   RefSeq; WP_011528363.1; NC_008024.1.
DR   AlphaFoldDB; Q1J7X1; -.
DR   SMR; Q1J7X1; -.
DR   EnsemblBacteria; ABF37390; ABF37390; MGAS10750_Spy0440.
DR   KEGG; spi:MGAS10750_Spy0440; -.
DR   HOGENOM; CLU_008554_0_1_9; -.
DR   OMA; FYYDFAY; -.
DR   Proteomes; UP000002434; Chromosome.
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..647
FT                   /note="Threonine--tRNA ligase"
FT                   /id="PRO_1000020530"
FT   DOMAIN          1..61
FT                   /note="TGS"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01228"
FT   REGION          240..538
FT                   /note="Catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT   BINDING         334
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT   BINDING         385
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT   BINDING         515
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
SQ   SEQUENCE   647 AA;  74303 MW;  38263AA623A73A0B CRC64;
     MIKITFPDGA VREFESGVTT FDIAESISKS LAKKALAGKF NDQLIDTTRA IEEDGSIEIV
     TPDHKDAYEV LRHSAAHLFA QAAKRLFPNL HLGVGPAIAE GFYYDTDNAE GQISNEDLPR
     IEAEMQKIVT ENYPCIREEV TKEEALELFK DDPYKVELIN EHAGAGLTVY RQGEFVDLCR
     GPHVPSTGRI QVFHLLNVAG AYWRGNSDNN MMQRIYGTAW FDKKDLKAYL TRLEEAKERD
     HRKLGKELDL FMISQEVGQG LPFWLPDGAT IRRTLERYIT DKELASGYQH VYTPPLASVE
     LYKTSGHWDH YQEDMFPVMD MGDGEEFVLR PMNCPHHIQV YKNHVRSYRE LPIRIAELGM
     MHRYEKSGAL SGLQRVREMT LNDGHIFVTP EQIQEEFRRA LQLIIDVYAD FNLTDYRFRL
     SYRDPNDTHK YYDNDEMWEN AQSMLKAALD EMGVDYFEAE GEAAFYGPKL DIQVKTALGN
     EETLSTIQLD FLLPERFDLK YIGADGEEHR PVMIHRGVIS TMERFTAILI ETYKGAFPTW
     LAPHQVTVIP ISNEAHIDYA WEVAKTLRDR GVRADVDDRN EKMQYKIRAS QTSKIPYQLI
     VGDKEMEDKS VNVRRYGSKA THTESVEEFV ENILADIARK SRPDAQA
 
 
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