SYM_METBF
ID SYM_METBF Reviewed; 710 AA.
AC Q46F18;
DT 29-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT 13-SEP-2005, sequence version 1.
DT 03-AUG-2022, entry version 121.
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=Mbar_A0543;
OS Methanosarcina barkeri (strain Fusaro / DSM 804).
OC Archaea; Euryarchaeota; Stenosarchaea group; Methanomicrobia;
OC Methanosarcinales; Methanosarcinaceae; Methanosarcina.
OX NCBI_TaxID=269797;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Fusaro / DSM 804;
RX PubMed=16980466; DOI=10.1128/jb.00810-06;
RA Maeder D.L., Anderson I., Brettin T.S., Bruce D.C., Gilna P., Han C.S.,
RA Lapidus A., Metcalf W.W., Saunders E., Tapia R., Sowers K.R.;
RT "The Methanosarcina barkeri genome: comparative analysis with
RT Methanosarcina acetivorans and Methanosarcina mazei reveals extensive
RT rearrangement within methanosarcinal genomes.";
RL J. Bacteriol. 188:7922-7931(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; CP000099; AAZ69524.1; -; Genomic_DNA.
DR AlphaFoldDB; Q46F18; -.
DR SMR; Q46F18; -.
DR STRING; 269797.Mbar_A0543; -.
DR PRIDE; Q46F18; -.
DR EnsemblBacteria; AAZ69524; AAZ69524; Mbar_A0543.
DR KEGG; mba:Mbar_A0543; -.
DR eggNOG; arCOG00810; Archaea.
DR HOGENOM; CLU_009710_1_2_2; -.
DR OMA; SDMHGTP; -.
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; IPR041872; Anticodon_Met.
DR InterPro; IPR013155; M/V/L/I-tRNA-synth_anticd-bd.
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; PF08264; Anticodon_1; 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; 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..710
FT /note="Methionine--tRNA ligase"
FT /id="PRO_0000331949"
FT DOMAIN 608..710
FT /note="tRNA-binding"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00098"
FT REGION 558..598
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT MOTIF 16..26
FT /note="'HIGH' region"
FT MOTIF 330..334
FT /note="'KMSKS' region"
FT COMPBIAS 573..598
FT /note="Basic and acidic residues"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT BINDING 147
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00098"
FT BINDING 150
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 163
FT /ligand="Zn(2+)"
FT /ligand_id="ChEBI:CHEBI:29105"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00098"
FT BINDING 333
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00098"
SQ SEQUENCE 710 AA; 79231 MW; D98AE59A1C81D415 CRC64;
MPEPSSKPVL VTCGLPYANG KAHIGHLRTY VPADIYARSL RKEGRDVTFV CGSDTHGTPI
VVNAEELGIT PKELVEVYHK HFDETFKQLG VYFDAFGTTD DPENHNRTLD IVNRLIEKGY
VYPKTIEIAY CPKCNRFLPD RYVEGSCPHC GEIARGDECD QGCGKHLEPG ELLNPVCTIC
GGPAEYRQQE HFFFKLSEFS DYLMDYLSND LGGTINARNY ALGWVKQGLT DWCITRNLEW
GVKFPGHDDL VVYVWVDAPI GYIAFTEEWA AKAGDSWEKF WKNDGEIVHF IGGDITYHHC
IFWPAMLKGA DYSVPTAVVA SGMVKIEDKK FSKSRGNVVW VGEDYLSHGF HPDLLRYYLA
SYTSHTKELN FSWRVLQEKI NTELVSVLGN FLYRTMLFAF KNYGEVPSGE LEPEVREEIE
KALKEVKAAM AEYEFKKAVD SAMSLASFGN TYFQSHEPWN LIKQDKAACG QVLYNCLHLA
KALCLIFEPV TPGSMETAWK ELGQEGDLHT TLYADALVPL KAGTKLAKPK ILFTKLEDDR
IEEMEEIANQ RVKAADAKKA AGKGNGKEPT KAEGMGPAEE AKPAEKAGGA AKPREEEKET
LPMIEYEDFA KLDIRVGKVL LAEPVKKSKK LIRIEVDIGE EKTRQLVAGL SSYYAPEELV
GKSVIVLANL KPAKLCGVKS NGMMLAADDG GEIVSALMPD KEIKPGSRIR
