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SYM_THIDA
ID   SYM_THIDA               Reviewed;         690 AA.
AC   Q3SKG8;
DT   29-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT   11-OCT-2005, sequence version 1.
DT   03-AUG-2022, entry version 113.
DE   RecName: Full=Methionine--tRNA ligase {ECO:0000255|HAMAP-Rule:MF_00098};
DE            EC=6.1.1.10 {ECO:0000255|HAMAP-Rule:MF_00098};
DE   AltName: Full=Methionyl-tRNA synthetase {ECO:0000255|HAMAP-Rule:MF_00098};
DE            Short=MetRS {ECO:0000255|HAMAP-Rule:MF_00098};
GN   Name=metG {ECO:0000255|HAMAP-Rule:MF_00098}; OrderedLocusNames=Tbd_0860;
OS   Thiobacillus denitrificans (strain ATCC 25259).
OC   Bacteria; Proteobacteria; Betaproteobacteria; Nitrosomonadales;
OC   Thiobacillaceae; Thiobacillus.
OX   NCBI_TaxID=292415;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 25259;
RX   PubMed=16452431; DOI=10.1128/jb.188.4.1473-1488.2006;
RA   Beller H.R., Chain P.S., Letain T.E., Chakicherla A., Larimer F.W.,
RA   Richardson P.M., Coleman M.A., Wood A.P., Kelly D.P.;
RT   "The genome sequence of the obligately chemolithoautotrophic, facultatively
RT   anaerobic bacterium Thiobacillus denitrificans.";
RL   J. Bacteriol. 188:1473-1488(2006).
CC   -!- FUNCTION: Is required not only for elongation of protein synthesis but
CC       also for the initiation of all mRNA translation through initiator
CC       tRNA(fMet) aminoacylation. {ECO:0000255|HAMAP-Rule:MF_00098}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + L-methionine + tRNA(Met) = AMP + diphosphate + L-
CC         methionyl-tRNA(Met); Xref=Rhea:RHEA:13481, Rhea:RHEA-COMP:9667,
CC         Rhea:RHEA-COMP:9698, ChEBI:CHEBI:30616, ChEBI:CHEBI:33019,
CC         ChEBI:CHEBI:57844, ChEBI:CHEBI:78442, ChEBI:CHEBI:78530,
CC         ChEBI:CHEBI:456215; EC=6.1.1.10; Evidence={ECO:0000255|HAMAP-
CC         Rule:MF_00098};
CC   -!- COFACTOR:
CC       Name=Zn(2+); Xref=ChEBI:CHEBI:29105;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00098};
CC       Note=Binds 1 zinc ion per subunit. {ECO:0000255|HAMAP-Rule:MF_00098};
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00098}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00098}.
CC   -!- SIMILARITY: Belongs to the class-I aminoacyl-tRNA synthetase family.
CC       MetG type 1 subfamily. {ECO:0000255|HAMAP-Rule:MF_00098}.
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DR   EMBL; CP000116; AAZ96813.1; -; Genomic_DNA.
DR   RefSeq; WP_011311372.1; NC_007404.1.
DR   AlphaFoldDB; Q3SKG8; -.
DR   SMR; Q3SKG8; -.
DR   STRING; 292415.Tbd_0860; -.
DR   EnsemblBacteria; AAZ96813; AAZ96813; Tbd_0860.
DR   KEGG; tbd:Tbd_0860; -.
DR   eggNOG; COG0073; Bacteria.
DR   eggNOG; COG0143; Bacteria.
DR   HOGENOM; CLU_009710_7_0_4; -.
DR   OMA; SDMHGTP; -.
DR   OrthoDB; 761140at2; -.
DR   Proteomes; UP000008291; 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:0004825; F:methionine-tRNA ligase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0000049; F:tRNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0006431; P:methionyl-tRNA aminoacylation; IEA:UniProtKB-UniRule.
DR   CDD; cd07957; Anticodon_Ia_Met; 1.
DR   CDD; cd00814; MetRS_core; 1.
DR   CDD; cd02800; tRNA_bind_EcMetRS_like; 1.
DR   Gene3D; 2.20.28.20; -; 1.
DR   Gene3D; 2.40.50.140; -; 1.
DR   Gene3D; 3.40.50.620; -; 1.
DR   HAMAP; MF_00098; Met_tRNA_synth_type1; 1.
DR   InterPro; IPR001412; aa-tRNA-synth_I_CS.
DR   InterPro; IPR041872; Anticodon_Met.
DR   InterPro; IPR004495; Met-tRNA-synth_bsu_C.
DR   InterPro; IPR023458; Met-tRNA_ligase_1.
DR   InterPro; IPR014758; Met-tRNA_synth.
DR   InterPro; IPR015413; Methionyl/Leucyl_tRNA_Synth.
DR   InterPro; IPR033911; MetRS_core.
DR   InterPro; IPR029038; MetRS_Zn.
DR   InterPro; IPR012340; NA-bd_OB-fold.
DR   InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR   InterPro; IPR002547; tRNA-bd_dom.
DR   InterPro; IPR009080; tRNAsynth_Ia_anticodon-bd.
DR   PANTHER; PTHR45765; PTHR45765; 1.
DR   Pfam; PF19303; Anticodon_3; 1.
DR   Pfam; PF09334; tRNA-synt_1g; 1.
DR   Pfam; PF01588; tRNA_bind; 1.
DR   PRINTS; PR01041; TRNASYNTHMET.
DR   SUPFAM; SSF47323; SSF47323; 1.
DR   SUPFAM; SSF50249; SSF50249; 1.
DR   SUPFAM; SSF57770; SSF57770; 1.
DR   TIGRFAMs; TIGR00398; metG; 1.
DR   TIGRFAMs; TIGR00399; metG_C_term; 1.
DR   PROSITE; PS00178; AA_TRNA_LIGASE_I; 1.
DR   PROSITE; PS50886; TRBD; 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..690
FT                   /note="Methionine--tRNA ligase"
FT                   /id="PRO_0000331921"
FT   DOMAIN          582..690
FT                   /note="tRNA-binding"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00098"
FT   MOTIF           12..22
FT                   /note="'HIGH' region"
FT   MOTIF           328..332
FT                   /note="'KMSKS' region"
FT   BINDING         143
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00098"
FT   BINDING         146
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00098"
FT   BINDING         156
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00098"
FT   BINDING         159
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00098"
FT   BINDING         331
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00098"
SQ   SEQUENCE   690 AA;  76866 MW;  D521743669FD6D63 CRC64;
     MSRQILVTSA LPYANGSIHL GHLVEYIQTD IWVRFQKMRG TNCRYMCADD THGTAIMLRA
     EKEAITPEAL IQRVWAEHTR DFAGFHIGFD HYYSTHSDEN REHASKIYLA LKDAGLIEVK
     TIAQLYDPVK NLFLPDRFIK GECPKCGAAD QYGDNCEVCG ATYSPTELKN PVSAVSGATP
     VHKDSEHYFF KLGDCEAFLR EWTTSGTLQA EAANKMQEWF AAGLNNWDIS RDAPYFGFEI
     PDAPGKYFYV WLDAPVGYMA SFARYAKDHG LDFDAWWGKD SKTELVHFIG KDILYFHALF
     WPAMLKFSGH RLPTAVYAHG FLTVNGQKMS KSRGTFITAS SYLDQGLNPE WLRYYYAAKL
     NGTMEDIDLN LDDFVARVNS DLVGKFINIA SRTAGFIHKK FDGKLADGVG NIELIGEFQA
     AADTIAAHYE ARDYAKALRE IMALADRANQ YVADEKPWEL AKDDAAVYRL HEVCTVALNL
     FRLLTLYLKP VLPKLAGEVE RFLDIPALTW KDARSLFIRQ AINAYSHLMT RIDPKSIEAM
     VDANKQNLEP TPAPAPARHA EAQAHAAQAV EAPKTETISI DDFAKVDLRI ARIANAEHVE
     GADKLLRLTL DVGELGPRQV FAGIKSAYAP EALVGRLTVM VANLAPRKMK FGMSEGMVLA
     ASNPDGHKDD VPGLFILSPD SGAEPGMKVK
 
 
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