SYT_STRPQ
ID SYT_STRPQ Reviewed; 647 AA.
AC P0DG59; Q8K8C0;
DT 27-JUL-2011, integrated into UniProtKB/Swiss-Prot.
DT 27-JUL-2011, sequence version 1.
DT 03-AUG-2022, entry version 55.
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=SPs1488;
OS Streptococcus pyogenes serotype M3 (strain SSI-1).
OC Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC Streptococcus.
OX NCBI_TaxID=193567;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SSI-1;
RX PubMed=12799345; DOI=10.1101/gr.1096703;
RA Nakagawa I., Kurokawa K., Yamashita A., Nakata M., Tomiyasu Y.,
RA Okahashi N., Kawabata S., Yamazaki K., Shiba T., Yasunaga T., Hayashi H.,
RA Hattori M., Hamada S.;
RT "Genome sequence of an M3 strain of Streptococcus pyogenes reveals a large-
RT scale genomic rearrangement in invasive strains and new insights into phage
RT evolution.";
RL Genome Res. 13:1042-1055(2003).
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; BA000034; BAC64583.1; -; Genomic_DNA.
DR RefSeq; WP_011054265.1; NC_004606.1.
DR AlphaFoldDB; P0DG59; -.
DR SMR; P0DG59; -.
DR KEGG; sps:SPs1488; -.
DR HOGENOM; CLU_008554_0_1_9; -.
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..647
FT /note="Threonine--tRNA ligase"
FT /id="PRO_0000411619"
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; 74319 MW; D963E6E4BDD94F0A CRC64;
MIKITFPDGA VREFESGVTT FDIAESISKS LAKKALAGKF NDQLIDTTRA IEEDGSIEIV
TPDHKDAYEV LRHSAAHLFA QAAKRLFPNL HLGVGPAIAE GFYYDTDNTE 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 EQIQEEFQRA LQLIIDVYAD FNLTDYRFRL
SYRDPNDTHK YYDNDEMWEN AQSMLKAALD EMGVDYFEAE GEAAFYGPKL DIQVKTALGN
EETLSTIQLD FLLPERFDLK YIGADGEEHR PVMIHRGVIS TMERFTAILI ETYKGAFPTW
LAPHQVTVIP ISNEAHIDYA WEVAKTLRDR GVRADVDDRN EKMQYKIRAS QTSKIPYQLI
VGDKEMEEKS VNVRRYGSKA THTESVEEFV ENILADIARK SRPDAQA
