ID SYM_ENTFA Reviewed; 669 AA.
AC Q837B3;
DT 31-OCT-2003, integrated into UniProtKB/Swiss-Prot.
DT 01-JUN-2003, sequence version 1.
DT 27-MAR-2024, entry version 127.
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=EF_0930;
OS Enterococcus faecalis (strain ATCC 700802 / V583).
OC Bacteria; Bacillota; Bacilli; Lactobacillales; Enterococcaceae;
OC Enterococcus.
OX NCBI_TaxID=226185;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700802 / V583;
RX PubMed=12663927; DOI=10.1126/science.1080613;
RA Paulsen I.T., Banerjei L., Myers G.S.A., Nelson K.E., Seshadri R.,
RA Read T.D., Fouts D.E., Eisen J.A., Gill S.R., Heidelberg J.F., Tettelin H.,
RA Dodson R.J., Umayam L.A., Brinkac L.M., Beanan M.J., Daugherty S.C.,
RA DeBoy R.T., Durkin S.A., Kolonay J.F., Madupu R., Nelson W.C.,
RA Vamathevan J.J., Tran B., Upton J., Hansen T., Shetty J., Khouri H.M.,
RA Utterback T.R., Radune D., Ketchum K.A., Dougherty B.A., Fraser C.M.;
RT "Role of mobile DNA in the evolution of vancomycin-resistant Enterococcus
RT faecalis.";
RL Science 299:2071-2074(2003).
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: Homodimer. {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; AE016830; AAO80738.1; -; Genomic_DNA.
DR RefSeq; NP_814668.1; NC_004668.1.
DR RefSeq; WP_002355813.1; NZ_KE136527.1.
DR AlphaFoldDB; Q837B3; -.
DR SMR; Q837B3; -.
DR STRING; 226185.EF_0930; -.
DR ChEMBL; CHEMBL4043; -.
DR EnsemblBacteria; AAO80738; AAO80738; EF_0930.
DR GeneID; 60893267; -.
DR KEGG; efa:EF0930; -.
DR PATRIC; fig|226185.45.peg.3138; -.
DR eggNOG; COG0073; Bacteria.
DR eggNOG; COG0143; Bacteria.
DR HOGENOM; CLU_009710_9_4_9; -.
DR SABIO-RK; Q837B3; -.
DR Proteomes; UP000001415; 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; 2.170.220.10; -; 1.
DR Gene3D; 3.40.50.620; HUPs; 1.
DR Gene3D; 2.40.50.140; Nucleic acid-binding proteins; 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; IPR004495; Met-tRNA-synth_bsu_C.
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; 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; PTHR43326:SF1; METHIONINE--TRNA LIGASE, MITOCHONDRIAL; 1.
DR PANTHER; PTHR43326; METHIONYL-TRNA SYNTHETASE; 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; 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; Reference proteome; RNA-binding;
KW tRNA-binding; Zinc.
FT CHAIN 1..669
FT /note="Methionine--tRNA ligase"
FT /id="PRO_0000139219"
FT DOMAIN 566..669
FT /note="tRNA-binding"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01228"
FT MOTIF 14..24
FT /note="'HIGH' region"
FT MOTIF 309..313
FT /note="'KMSKS' region"
FT BINDING 161
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01228"
FT BINDING 312
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_01228"
SQ SEQUENCE 669 AA; 76339 MW; 1E7E981E5F60248B CRC64;
MSQKETFYIT TPIYYPSGKL HIGNSYTTIA CDAMARYKRL MGFDVFYLTG VDEHGQKIEK
KAAELNVTPK EYVDKMAADV QKLWKTLDIS YDKFIRTTDD YHMAAVQQIF DRLVEQGDIY
LGEYEGWYSV SDEEFFTETQ LAEVYRDDEG NVIGGKAPSG HEVELVKEES YFFRMSKYAD
RLVQYYEEHP EFIQPESRKN EMLNNFIKPG LEDLAVSRTT FSWGIPLKND PKHVVYVWID
ALSNYITALG YGSEDDSLFQ KYWPANVQMV GKEIVRFHTI YWPIMLMALD LPLPKKVFGH
GWLLMKDGKM SKSKGNVVYP EMLVERYGLD ALRYYLLRAI PFGSDGVFTP EDFVSRLNYD
LANDLGNLLN RTIAMINKYC DGKVPAYASK VTPFDSELST TAANVIGKYH EAMEKMEFNT
AIAEIWTLVS RANKYIDETA PWVLAKEEEK RNELESVMIH LAESLRIVAI LLQPVMTETP
GKIFEQLGLD PETMNMENIH FGEFPTDVTV TSKGTPIFPR LEIETEVTYI QKKMSQSESA
TEEDIKWNPE ETTLVSTKEK QIKYDDFDKV ELKVAEVIDC KKVKGADKLL QFRLDAGDEN
HRQILSGIAE FYPDPAALIG KKVVIVANLK PRKMRGQISQ GMILSAESPE GKLQIVEAPK
EMPNGAGIA
//
