ID   SYM_ECOBW               Reviewed;         677 AA.
AC   C4ZSJ8;
DT   22-SEP-2009, integrated into UniProtKB/Swiss-Prot.
DT   28-JUL-2009, sequence version 1.
DT   27-MAR-2024, entry version 86.
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};
GN   OrderedLocusNames=BWG_1900;
OS   Escherichia coli (strain K12 / MC4100 / BW2952).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Escherichia.
OX   NCBI_TaxID=595496;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=K12 / MC4100 / BW2952;
RX   PubMed=19376874; DOI=10.1128/jb.00118-09;
RA   Ferenci T., Zhou Z., Betteridge T., Ren Y., Liu Y., Feng L., Reeves P.R.,
RA   Wang L.;
RT   "Genomic sequencing reveals regulatory mutations and recombinational events
RT   in the widely used MC4100 lineage of Escherichia coli K-12.";
RL   J. Bacteriol. 191:4025-4029(2009).
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; Evidence={ECO:0000255|HAMAP-
CC         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; CP001396; ACR63756.1; -; Genomic_DNA.
DR   RefSeq; WP_001350533.1; NC_012759.1.
DR   AlphaFoldDB; C4ZSJ8; -.
DR   SMR; C4ZSJ8; -.
DR   KEGG; ebw:BWG_1900; -.
DR   HOGENOM; CLU_009710_7_0_6; -.
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; 3.40.50.620; HUPs; 1.
DR   Gene3D; 2.20.28.20; Methionyl-tRNA synthetase, Zn-domain; 1.
DR   Gene3D; 2.40.50.140; Nucleic acid-binding proteins; 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   NCBIfam; TIGR00398; metG; 1.
DR   NCBIfam; TIGR00399; metG_C_term; 1.
DR   PANTHER; PTHR45765; METHIONINE--TRNA LIGASE; 1.
DR   PANTHER; PTHR45765:SF1; METHIONINE--TRNA LIGASE, CYTOPLASMIC; 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; Anticodon-binding domain of a subclass of class I aminoacyl-tRNA synthetases; 1.
DR   SUPFAM; SSF57770; Methionyl-tRNA synthetase (MetRS), Zn-domain; 1.
DR   SUPFAM; SSF50249; Nucleic acid-binding proteins; 1.
DR   SUPFAM; SSF52374; Nucleotidylyl transferase; 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; RNA-binding; tRNA-binding; Zinc.
FT   CHAIN           1..677
FT                   /note="Methionine--tRNA ligase"
FT                   /id="PRO_1000202756"
FT   DOMAIN          575..677
FT                   /note="tRNA-binding"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00098"
FT   MOTIF           15..25
FT                   /note="'HIGH' region"
FT   MOTIF           333..337
FT                   /note="'KMSKS' region"
FT   BINDING         146
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00098"
FT   BINDING         149
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         162
FT                   /ligand="Zn(2+)"
FT                   /ligand_id="ChEBI:CHEBI:29105"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00098"
FT   BINDING         336
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00098"
SQ   SEQUENCE   677 AA;  76255 MW;  363F3324AFD3202C CRC64;
     MTQVAKKILV TCALPYANGS IHLGHMLEHI QADVWVRYQR MRGHEVNFIC ADDAHGTPIM
     LKAQQLGITP EQMIGEMSQE HQTDFAGFNI SYDNYHSTHS EENRQLSELI YSRLKENGFI
     KNRTISQLYD PEKGMFLPDR FVKGTCPKCK SPDQYGDNCE VCGATYSPTE LIEPKSVVSG
     ATPVMRDSEH FFFDLPSFSE MLQAWTRSGA LQEQVANKMQ EWFESGLQQW DISRDAPYFG
     FEIPNAPGKY FYVWLDAPIG YMGSFKNLCD KRGDSVSFDE YWKKDSTAEL YHFIGKDIVY
     FHSLFWPAML EGSNFRKPSN LFVHGYVTVN GAKMSKSRGT FIKASTWLNH FDADSLRYYY
     TAKLSSRIDD IDLNLEDFVQ RVNADIVNKV VNLASRNAGF INKRFDGVLA SELADPQLYK
     TFTDAAEVIG EAWESREFGK AVREIMALAD LANRYVDEQA PWVVAKQEGR DADLQAICSM
     GINLFRVLMT YLKPVLPKLT ERAEAFLNTE LTWDGIQQPL LGHKVNPFKA LYNRIDMRQV
     EALVEASKEE VKAAAAPVTG PLADDPIQET ITFDDFAKVD LRVALIENAE FVEGSDKLLR
     LTLDLGGEKR NVFSGIRSAY PDPQALIGRH TIMVANLAPR KMRFGISEGM VMAAGPGGKD
     IFLLSPDAGA KPGHQVK
//