ID   SYM_CHLL2               Reviewed;         702 AA.
AC   B3ECI3;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   22-JUL-2008, sequence version 1.
DT   03-AUG-2022, entry version 84.
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=Clim_1190;
OS   Chlorobium limicola (strain DSM 245 / NBRC 103803 / 6330).
OC   Bacteria; Chlorobi; Chlorobia; Chlorobiales; Chlorobiaceae;
OC   Chlorobium/Pelodictyon group; Chlorobium.
OX   NCBI_TaxID=290315;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 245 / NBRC 103803 / 6330;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Schmutz J., Larimer F., Land M.,
RA   Hauser L., Kyrpides N., Ovchinnikova G., Zhao F., Li T., Liu Z.,
RA   Overmann J., Bryant D.A., Richardson P.;
RT   "Complete sequence of Chlorobium limicola DSM 245.";
RL   Submitted (MAY-2008) to the EMBL/GenBank/DDBJ databases.
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; CP001097; ACD90258.1; -; Genomic_DNA.
DR   RefSeq; WP_012466135.1; NC_010803.1.
DR   AlphaFoldDB; B3ECI3; -.
DR   SMR; B3ECI3; -.
DR   STRING; 290315.Clim_1190; -.
DR   PRIDE; B3ECI3; -.
DR   EnsemblBacteria; ACD90258; ACD90258; Clim_1190.
DR   KEGG; cli:Clim_1190; -.
DR   eggNOG; COG0073; Bacteria.
DR   eggNOG; COG0143; Bacteria.
DR   HOGENOM; CLU_009710_1_2_10; -.
DR   OMA; SDMHGTP; -.
DR   OrthoDB; 761140at2; -.
DR   Proteomes; UP000008841; 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..702
FT                   /note="Methionine--tRNA ligase"
FT                   /id="PRO_1000093704"
FT   DOMAIN          601..702
FT                   /note="tRNA-binding"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00098"
FT   MOTIF           14..24
FT                   /note="'HIGH' region"
FT   MOTIF           344..348
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         347
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00098"
SQ   SEQUENCE   702 AA;  79502 MW;  0856BFE1587AA3EF CRC64;
     MQHVTRTLVT TALPYANGPV HLGHLAGVYL PADIYVRYKR MKGEDVIHIG GSDEHGVPIT
     ITAEKEGISP QDVVDRYHRM NSEAFRKCGI SFDYYGRTSS QGHHDTAKEF FLEIERKGIF
     RRKTEKLFFD AKAERFLSDR YVTGTCPICN NPEANGDQCE QCGTHLSPTE LLNPKSKLSD
     ATPELRDTMH WYFPLGRFQE ALEAYVASHE HDWRPNVVNY TRTWLKQGLN DRAITRDLSW
     GIQVPLDDPE ACGKVLYVWF DAVLGYISFT RQWAAEAGDE SLWRAYWQDP ESRVVNFIGK
     DNVVFHTLMF PAILMAWNEG RQSGIYNLAD NVPASEFMNF EGRKFSKSRN YAVYLGEFLE
     KFPADTLRYS IAMNYPENKD TDFSWQDFQN RTNGELADTL GNFIKRSVDF TNSRFDGVVP
     FSCTDDDWNV LGIDWSQTIE KLDQAYEQFH IRETASLGMD IARSANRFLT ESEPWKVIKT
     DREAAAKTMA LSLNLCYALA ITLYPVIPET AGRIYAMLGF EGSIDARIKR GVSAIEELLA
     PQLHKGHRIR KESEILFTKI EDADIEPELK KIEKLLADAE KLEAAALSQE MTFKPEISFD
     DFLKVDLRVA TVLGAEKVKK AGKLLKLQLK VGTEARQVLA GIAQFYSPEE MVGKQVVLVA
     NLAERTIRGE ISQGMILAVE GADGRLCVVE PVGDEINGQQ IQ