ID SYT_MYCPU Reviewed; 589 AA.
AC Q98PH6;
DT 30-AUG-2002, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-2001, sequence version 1.
DT 27-MAR-2024, entry version 121.
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=MYPU_7460;
OS Mycoplasmopsis pulmonis (strain UAB CTIP) (Mycoplasma pulmonis).
OC Bacteria; Mycoplasmatota; Mycoplasmoidales; Metamycoplasmataceae;
OC Mycoplasmopsis.
OX NCBI_TaxID=272635;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=UAB CTIP;
RX PubMed=11353084; DOI=10.1093/nar/29.10.2145;
RA Chambaud I., Heilig R., Ferris S., Barbe V., Samson D., Galisson F.,
RA Moszer I., Dybvig K., Wroblewski H., Viari A., Rocha E.P.C., Blanchard A.;
RT "The complete genome sequence of the murine respiratory pathogen Mycoplasma
RT pulmonis.";
RL Nucleic Acids Res. 29:2145-2153(2001).
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; AL445565; CAC13919.1; -; Genomic_DNA.
DR PIR; B90605; B90605.
DR RefSeq; WP_010925547.1; NC_002771.1.
DR AlphaFoldDB; Q98PH6; -.
DR SMR; Q98PH6; -.
DR STRING; 272635.gene:17577357; -.
DR KEGG; mpu:MYPU_7460; -.
DR eggNOG; COG0441; Bacteria.
DR HOGENOM; CLU_008554_3_2_14; -.
DR BioCyc; MPUL272635:G1GT6-757-MONOMER; -.
DR Proteomes; UP000000528; 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; cd00860; ThrRS_anticodon; 1.
DR CDD; cd00771; ThrRS_core; 1.
DR Gene3D; 3.30.54.20; -; 1.
DR Gene3D; 3.40.50.800; Anticodon-binding domain; 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; IPR002320; Thr-tRNA-ligase_IIa.
DR InterPro; IPR018163; Thr/Ala-tRNA-synth_IIc_edit.
DR InterPro; IPR047246; ThrRS_anticodon.
DR InterPro; IPR033728; ThrRS_core.
DR InterPro; IPR012947; tRNA_SAD.
DR NCBIfam; TIGR00418; thrS; 1.
DR PANTHER; PTHR11451:SF56; THREONINE--TRNA LIGASE; 1.
DR PANTHER; PTHR11451; THREONINE-TRNA LIGASE; 1.
DR Pfam; PF03129; HGTP_anticodon; 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; SSF52954; Class II aaRS ABD-related; 1.
DR SUPFAM; SSF55681; Class II aaRS and biotin synthetases; 1.
DR SUPFAM; SSF55186; ThrRS/AlaRS common domain; 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..589
FT /note="Threonine--tRNA ligase"
FT /id="PRO_0000101011"
FT REGION 191..487
FT /note="Catalytic"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT BINDING 284
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT BINDING 335
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT BINDING 464
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
SQ SEQUENCE 589 AA; 68855 MW; C6070529F856612E CRC64;
MNEKNSDEIN YDFKVDSNLN HTTSHLLAAA IVQLYPNVKL GFGPAIEEGF YYDFEFENPL
SKLELLKIEK LMKKLASMNL KMVKVDGSNY DFTNKPYKKE LYDELKQKGQ EITFYSLVDT
NGKEIFTDLC AGGHVESTSK INNFKLLSLA GAYWRGNSNN IQLTRIYGSS FYKKDELENY
LKVIEDRKER DHRKIGKNLG IFTFSSLSGL GFPIWLKKGM LIKRAIEKEI LYLDRKYGFE
EVLSPHFGEE SLYIKSGHLA HYQETMFKSL EVENEKLIPR PMTCPHHIII YDAFPRSYRE
LPLRLSEQSR LYRYEKSGAL TGLERVRTMD LTEGHIFIRQ DQIKDEVLNM INLIQETLKI
FKIKIDHVAL SLRDNDKEKF FDDDQMWDQA ESALKEILDQ NKIDYIVEKG EAAFYGPKID
FQVKTVLNNI ITMSTIQLDF LLPRKFNISY IAPDGSKQTP LMIHRGLIGT YERFVSILLE
QTKGNFPFWL SPSQVIVLPI AKEFKEYAFE IYSKIFKQNF NVEIDNRDET INKKIREAQI
NKYKYQIIIG KQEMENKTIA IREYGKVQTI TMDLESFIEK IKSQRDSKE
//
