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SYT_ACIBC
ID   SYT_ACIBC               Reviewed;         640 AA.
AC   B2HTH0;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-JUN-2008, sequence version 1.
DT   03-AUG-2022, entry version 82.
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=ACICU_00595;
OS   Acinetobacter baumannii (strain ACICU).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Moraxellales; Moraxellaceae;
OC   Acinetobacter; Acinetobacter calcoaceticus/baumannii complex.
OX   NCBI_TaxID=405416;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ACICU;
RX   PubMed=18411315; DOI=10.1128/aac.01643-07;
RA   Iacono M., Villa L., Fortini D., Bordoni R., Imperi F., Bonnal R.J.,
RA   Sicheritz-Ponten T., De Bellis G., Visca P., Cassone A., Carattoli A.;
RT   "Whole-genome pyrosequencing of an epidemic multidrug-resistant
RT   Acinetobacter baumannii strain belonging to the European clone II group.";
RL   Antimicrob. Agents Chemother. 52:2616-2625(2008).
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; CP000863; ACC55907.1; -; Genomic_DNA.
DR   RefSeq; WP_001121792.1; NZ_CP031380.1.
DR   AlphaFoldDB; B2HTH0; -.
DR   SMR; B2HTH0; -.
DR   GeneID; 66398430; -.
DR   KEGG; abc:ACICU_00595; -.
DR   HOGENOM; CLU_008554_0_1_6; -.
DR   OMA; FYYDFAY; -.
DR   Proteomes; UP000008839; 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..640
FT                   /note="Threonine--tRNA ligase"
FT                   /id="PRO_1000098533"
FT   DOMAIN          1..61
FT                   /note="TGS"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU01228"
FT   REGION          242..533
FT                   /note="Catalytic"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT   BINDING         333
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT   BINDING         384
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
FT   BINDING         510
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00184"
SQ   SEQUENCE   640 AA;  73151 MW;  4DB5D7E174F97E29 CRC64;
     MPIITLPNGD QKSFDHPVSV MEVAQSIGPG LAKNTVAGRV NDRLVDACDL ITEDSTLQII
     TPKDEEGLEI IRHSCAHLVG HAVKQLFPEA KMVIGPVIEE GFYYDIWMPR PFTLDDMAAI
     EERMKKLIDQ DYDVIKKMTP RDEVIKVFTD RGEEYKLRLV EDMPEEKAMG LYYHQEYVDM
     CRGPHVPNTK FLKSFKLTKI SGAYWRGDAK NEQLQRIYGT AWADKKQLAA YIKRIEEAEK
     RDHRKIGKAL DLFHMQEEAP GMVFWHANGW TIYQVLEQYM RKVQQDNGYQ EIKTPQIVDF
     TLWEKSGHAA NYAENMFTTH SESRNYAVKP MNCPCHVQVF NQGLKSYRDL PIRLAEFGSC
     HRNEPSGSLH GIMRVRGFTQ DDAHIFCTKE QIGKEVADFI KLTLDVYKDF GFEEVQMKLS
     TRPEKRVGDD ALWDLAEKSL ADALDAAGLE WELQPGEGAF YGPKIEFSLK DCLGRVWQCG
     TIQCDFNLPV RLDASYVTEE NERDQPVMLH RAILGSFERF IGILIEHYAG FMPPWLSPVQ
     ACVMNITDSQ AEASEQVVAK LKENGLRAIS DLRNEKIGFK IRERTLERIP YLLVLGDREV
     EEGTVNVRTR SGKNLGTMSV DAFIDLVKSA VAERGRYIVE
 
 
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