ID   SYM_RHILO               Reviewed;         516 AA.
AC   Q98MV8;
DT   08-NOV-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2001, sequence version 1.
DT   03-AUG-2022, entry version 113.
DE   RecName: Full=Methionine--tRNA ligase {ECO:0000255|HAMAP-Rule:MF_01228};
DE            EC=6.1.1.10 {ECO:0000255|HAMAP-Rule:MF_01228};
DE   AltName: Full=Methionyl-tRNA synthetase {ECO:0000255|HAMAP-Rule:MF_01228};
DE            Short=MetRS {ECO:0000255|HAMAP-Rule:MF_01228};
GN   Name=metG {ECO:0000255|HAMAP-Rule:MF_01228}; OrderedLocusNames=mll0419;
OS   Mesorhizobium japonicum (strain LMG 29417 / CECT 9101 / MAFF 303099)
OS   (Mesorhizobium loti (strain MAFF 303099)).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC   Phyllobacteriaceae; Mesorhizobium.
OX   NCBI_TaxID=266835;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=LMG 29417 / CECT 9101 / MAFF 303099;
RX   PubMed=11214968; DOI=10.1093/dnares/7.6.331;
RA   Kaneko T., Nakamura Y., Sato S., Asamizu E., Kato T., Sasamoto S.,
RA   Watanabe A., Idesawa K., Ishikawa A., Kawashima K., Kimura T., Kishida Y.,
RA   Kiyokawa C., Kohara M., Matsumoto M., Matsuno A., Mochizuki Y.,
RA   Nakayama S., Nakazaki N., Shimpo S., Sugimoto M., Takeuchi C., Yamada M.,
RA   Tabata S.;
RT   "Complete genome structure of the nitrogen-fixing symbiotic bacterium
RT   Mesorhizobium loti.";
RL   DNA Res. 7:331-338(2000).
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_01228}.
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_01228};
CC   -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_01228}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_01228}.
CC   -!- SIMILARITY: Belongs to the class-I aminoacyl-tRNA synthetase family.
CC       MetG type 2B subfamily. {ECO:0000255|HAMAP-Rule:MF_01228}.
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DR   EMBL; BA000012; BAB48005.1; -; Genomic_DNA.
DR   RefSeq; WP_010909361.1; NC_002678.2.
DR   AlphaFoldDB; Q98MV8; -.
DR   SMR; Q98MV8; -.
DR   STRING; 266835.14021392; -.
DR   EnsemblBacteria; BAB48005; BAB48005; BAB48005.
DR   KEGG; mlo:mll0419; -.
DR   PATRIC; fig|266835.9.peg.335; -.
DR   eggNOG; COG0143; Bacteria.
DR   HOGENOM; CLU_009710_9_3_5; -.
DR   OMA; SDMHGTP; -.
DR   OrthoDB; 761140at2; -.
DR   Proteomes; UP000000552; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004825; F:methionine-tRNA ligase activity; IEA:UniProtKB-UniRule.
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   Gene3D; 3.40.50.620; -; 1.
DR   HAMAP; MF_01228; Met_tRNA_synth_type2; 1.
DR   InterPro; IPR001412; aa-tRNA-synth_I_CS.
DR   InterPro; IPR041872; Anticodon_Met.
DR   InterPro; IPR014758; Met-tRNA_synth.
DR   InterPro; IPR023457; Met-tRNA_synth_2.
DR   InterPro; IPR015413; Methionyl/Leucyl_tRNA_Synth.
DR   InterPro; IPR033911; MetRS_core.
DR   InterPro; IPR014729; Rossmann-like_a/b/a_fold.
DR   InterPro; IPR009080; tRNAsynth_Ia_anticodon-bd.
DR   PANTHER; PTHR43326; PTHR43326; 1.
DR   Pfam; PF19303; Anticodon_3; 1.
DR   Pfam; PF09334; tRNA-synt_1g; 2.
DR   PRINTS; PR01041; TRNASYNTHMET.
DR   SUPFAM; SSF47323; SSF47323; 1.
DR   TIGRFAMs; TIGR00398; metG; 1.
DR   PROSITE; PS00178; AA_TRNA_LIGASE_I; 1.
PE   3: Inferred from homology;
KW   Aminoacyl-tRNA synthetase; ATP-binding; Cytoplasm; Ligase;
KW   Nucleotide-binding; Protein biosynthesis.
FT   CHAIN           1..516
FT                   /note="Methionine--tRNA ligase"
FT                   /id="PRO_0000139235"
FT   MOTIF           13..23
FT                   /note="'HIGH' region"
FT   MOTIF           299..303
FT                   /note="'KMSKS' region"
FT   BINDING         302
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01228"
SQ   SEQUENCE   516 AA;  57525 MW;  E21E92465AC561D9 CRC64;
     MSREKYYLTT PIFYPNGKPH IGHAYTVIAT DALARFQRLD GKDVFFLTGT DEHGLKMQQT
     AEKEGITPQA LADRNSAIFR SMTEAVGGSN DEYIRTTEPR HYASCQAIWK AMAANGDIYL
     DRYSGWYSVR QEAYFDESET TLGEDGVRRE PLGSPVEWNE EESYFFRLSA YQDKLLALYE
     SQPDFVGPAE RRNEVMSFVK SGLKDLSISR TTFKWGVPVP GDDKHVMYVW VDALTNYITA
     AGYPDTKSDQ WRYWPATHII GKDIVRFHAV YWPAFLMSAG IELPKRVFAH GFLFNRGEKM
     SKSVGNVVDP FALIEHYGLD QVRYFFLREV PFGQDGSYSH DAIVNRTNAD LANGLGNLAQ
     RSLSMIAKNC GGVVPKRGEM TDADSAILDQ AVAALTTARK AMAGQGIHLA LAAIFDVVAE
     ADRYFAGQAP WALKKTDPER METVLWTTAE LVRRVAVLCQ PFIPGSAAKL LDLLAVPADK
     RDFVHVHADY ALVPGTALPA PEGVFPRYVE QPGANA