SYT_STRZJ
ID SYT_STRZJ Reviewed; 647 AA.
AC C1CFK0;
DT 28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT 26-MAY-2009, sequence version 1.
DT 03-AUG-2022, entry version 73.
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=SPJ_1524;
OS Streptococcus pneumoniae (strain JJA).
OC Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC Streptococcus.
OX NCBI_TaxID=488222;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=JJA;
RX PubMed=21034474; DOI=10.1186/gb-2010-11-10-r107;
RA Donati C., Hiller N.L., Tettelin H., Muzzi A., Croucher N.J.,
RA Angiuoli S.V., Oggioni M., Dunning Hotopp J.C., Hu F.Z., Riley D.R.,
RA Covacci A., Mitchell T.J., Bentley S.D., Kilian M., Ehrlich G.D.,
RA Rappuoli R., Moxon E.R., Masignani V.;
RT "Structure and dynamics of the pan-genome of Streptococcus pneumoniae and
RT closely related species.";
RL Genome Biol. 11:R107.1-R107.19(2010).
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; CP000919; ACO19697.1; -; Genomic_DNA.
DR RefSeq; WP_000608358.1; NC_012466.1.
DR AlphaFoldDB; C1CFK0; -.
DR SMR; C1CFK0; -.
DR EnsemblBacteria; ACO19697; ACO19697; SPJ_1524.
DR KEGG; sjj:SPJ_1524; -.
DR HOGENOM; CLU_008554_3_2_9; -.
DR OMA; FYYDFAY; -.
DR Proteomes; UP000002206; 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_1000199571"
FT DOMAIN 1..61
FT /note="TGS"
FT /evidence="ECO:0000255|PROSITE-ProRule:PRU01228"
FT REGION 242..540
FT /note="Catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT BINDING 336
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT BINDING 387
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT BINDING 517
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
SQ SEQUENCE 647 AA; 74697 MW; 7CE4CCEB4CBF1B00 CRC64;
MINITFPDGA VREFESGVTT FEIAQSISNS LAKKALAGKF NGKLIDTTRA ITEDGSIEIV
TPDHEDALPI LRHSAAHLFA QAARRLFPDI HLGVGPAIED GFYYDTDNTA GQISNEDLPR
IEEEMQKIVK ENFPSIREEV TKDEAREIFK NDPYKLELIE EHSEDEGGLT IYRQGEYVDL
CRGPHVPSTG RIQIFHLLHV AGAYWRGNSD NAMMQRIYGT AWFEKKDLKN YLQMREEAKE
RDHRKLGKEL DLFMISQEVG QGLPFWLPNG ATIRRELERY IVNKELASGY QHVYTPPLAS
VELYKTSGHW DHYQEDMFPT MDMGDGEEFV LRPMNCPHHI QVFKHHVHSY RELPIRIAEI
GMMHRYEKSG ALTGLQRVRE MSLNDGHLFV TPEQIQEEFQ RALQLIIDVY EDFNLTDYRF
RLSLRDPQDT HKYFDNDEMW ENAQTMLRAA LDEMGVDYFE AEGEAAFYGP KLDIQIKTAL
GKEETLSTIQ LDFLLPERFD LKYIGADGED HRPVMIHRGV ISTMERFTAI LIENYKGAFP
TWLAPHQVTL IPVSNEKHVD YAWEVAKKLR DRGVRADVDE RNEKMQFKIR ASQTSKIPYQ
LIVGDKEMED ETVNVRRYGQ KETQTVSVDN FVQAILADIA NKSRVEK
