METK_BURTA
ID METK_BURTA Reviewed; 395 AA.
AC Q2T267;
DT 27-JUN-2006, integrated into UniProtKB/Swiss-Prot.
DT 24-JAN-2006, sequence version 1.
DT 03-AUG-2022, entry version 92.
DE RecName: Full=S-adenosylmethionine synthase {ECO:0000255|HAMAP-Rule:MF_00086};
DE Short=AdoMet synthase {ECO:0000255|HAMAP-Rule:MF_00086};
DE EC=2.5.1.6 {ECO:0000255|HAMAP-Rule:MF_00086};
DE AltName: Full=MAT {ECO:0000255|HAMAP-Rule:MF_00086};
DE AltName: Full=Methionine adenosyltransferase {ECO:0000255|HAMAP-Rule:MF_00086};
GN Name=metK {ECO:0000255|HAMAP-Rule:MF_00086}; OrderedLocusNames=BTH_I0174;
OS Burkholderia thailandensis (strain ATCC 700388 / DSM 13276 / CIP 106301 /
OS E264).
OC Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC Burkholderiaceae; Burkholderia; pseudomallei group.
OX NCBI_TaxID=271848;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 700388 / DSM 13276 / CIP 106301 / E264;
RX PubMed=16336651; DOI=10.1186/1471-2164-6-174;
RA Kim H.S., Schell M.A., Yu Y., Ulrich R.L., Sarria S.H., Nierman W.C.,
RA DeShazer D.;
RT "Bacterial genome adaptation to niches: divergence of the potential
RT virulence genes in three Burkholderia species of different survival
RT strategies.";
RL BMC Genomics 6:174-174(2005).
CC -!- FUNCTION: Catalyzes the formation of S-adenosylmethionine (AdoMet) from
CC methionine and ATP. The overall synthetic reaction is composed of two
CC sequential steps, AdoMet formation and the subsequent tripolyphosphate
CC hydrolysis which occurs prior to release of AdoMet from the enzyme.
CC {ECO:0000255|HAMAP-Rule:MF_00086}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=ATP + H2O + L-methionine = diphosphate + phosphate + S-
CC adenosyl-L-methionine; Xref=Rhea:RHEA:21080, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:30616, ChEBI:CHEBI:33019, ChEBI:CHEBI:43474,
CC ChEBI:CHEBI:57844, ChEBI:CHEBI:59789; EC=2.5.1.6;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00086};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00086};
CC Note=Binds 2 divalent ions per subunit. {ECO:0000255|HAMAP-
CC Rule:MF_00086};
CC -!- COFACTOR:
CC Name=K(+); Xref=ChEBI:CHEBI:29103;
CC Evidence={ECO:0000255|HAMAP-Rule:MF_00086};
CC Note=Binds 1 potassium ion per subunit. {ECO:0000255|HAMAP-
CC Rule:MF_00086};
CC -!- PATHWAY: Amino-acid biosynthesis; S-adenosyl-L-methionine biosynthesis;
CC S-adenosyl-L-methionine from L-methionine: step 1/1.
CC {ECO:0000255|HAMAP-Rule:MF_00086}.
CC -!- SUBUNIT: Homotetramer; dimer of dimers. {ECO:0000255|HAMAP-
CC Rule:MF_00086}.
CC -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00086}.
CC -!- SIMILARITY: Belongs to the AdoMet synthase family. {ECO:0000255|HAMAP-
CC Rule:MF_00086}.
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DR EMBL; CP000086; ABC38395.1; -; Genomic_DNA.
DR RefSeq; WP_009893546.1; NZ_CP008785.1.
DR AlphaFoldDB; Q2T267; -.
DR SMR; Q2T267; -.
DR PRIDE; Q2T267; -.
DR EnsemblBacteria; ABC38395; ABC38395; BTH_I0174.
DR GeneID; 66548593; -.
DR KEGG; bte:BTH_I0174; -.
DR HOGENOM; CLU_041802_1_1_4; -.
DR OMA; MPYLRPD; -.
DR OrthoDB; 1024388at2; -.
DR UniPathway; UPA00315; UER00080.
DR Proteomes; UP000001930; Chromosome I.
DR GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR GO; GO:0004478; F:methionine adenosyltransferase activity; IEA:UniProtKB-UniRule.
DR GO; GO:0006730; P:one-carbon metabolic process; IEA:UniProtKB-UniRule.
DR GO; GO:0006556; P:S-adenosylmethionine biosynthetic process; IEA:UniProtKB-UniPathway.
DR HAMAP; MF_00086; S_AdoMet_synth1; 1.
DR InterPro; IPR022631; ADOMET_SYNTHASE_CS.
DR InterPro; IPR022630; S-AdoMet_synt_C.
DR InterPro; IPR022629; S-AdoMet_synt_central.
DR InterPro; IPR022628; S-AdoMet_synt_N.
DR InterPro; IPR002133; S-AdoMet_synthetase.
DR InterPro; IPR022636; S-AdoMet_synthetase_sfam.
DR PANTHER; PTHR11964; PTHR11964; 1.
DR Pfam; PF02773; S-AdoMet_synt_C; 1.
DR Pfam; PF02772; S-AdoMet_synt_M; 1.
DR Pfam; PF00438; S-AdoMet_synt_N; 1.
DR PIRSF; PIRSF000497; MAT; 1.
DR SUPFAM; SSF55973; SSF55973; 3.
DR TIGRFAMs; TIGR01034; metK; 1.
DR PROSITE; PS00376; ADOMET_SYNTHASE_1; 1.
DR PROSITE; PS00377; ADOMET_SYNTHASE_2; 1.
PE 3: Inferred from homology;
KW ATP-binding; Cytoplasm; Magnesium; Metal-binding; Nucleotide-binding;
KW One-carbon metabolism; Potassium; Transferase.
FT CHAIN 1..395
FT /note="S-adenosylmethionine synthase"
FT /id="PRO_0000240985"
FT REGION 100..110
FT /note="Flexible loop"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00086"
FT BINDING 16
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00086"
FT BINDING 18
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00086"
FT BINDING 44
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00086"
FT BINDING 57
FT /ligand="L-methionine"
FT /ligand_id="ChEBI:CHEBI:57844"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00086"
FT BINDING 100
FT /ligand="L-methionine"
FT /ligand_id="ChEBI:CHEBI:57844"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00086"
FT BINDING 167..169
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00086"
FT BINDING 233..234
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00086"
FT BINDING 242
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00086"
FT BINDING 242
FT /ligand="L-methionine"
FT /ligand_id="ChEBI:CHEBI:57844"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00086"
FT BINDING 248..249
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00086"
FT BINDING 265
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00086"
FT BINDING 269
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00086"
FT BINDING 273
FT /ligand="L-methionine"
FT /ligand_id="ChEBI:CHEBI:57844"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /note="in other chain"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00086"
SQ SEQUENCE 395 AA; 42641 MW; D64B902A7ECC3686 CRC64;
MANDYLFTSE SVSEGHPDKV ADQISDAILD AILAQDKYSR VAAETLCNTG LVVLAGEITT
TANIDYIQIA RDTIKRIGYD NTDYGIDYRG CAVLVAYDKQ SPDIAQGVDR AHDNNLDQGA
GDQGLMFGYA CDETPELMPL PIHLSHRLVE RQANLRRDGR LPWLRPDAKS QVTVRYVDGK
PHSIDTVVLS TQHAPDIDLP ALREAVIEEI IKPTLPADLI KGDIKFLVNP TGRFVIGGPQ
GDCGLTGRKI IVDTYGGAAP HGGGAFSGKD PSKVDRSAAY AGRYVAKNIV AAGLASRALI
QVSYAIGVAE PTSVMVNTFG TGRVSDETIT KLVREHFDLR PKGIIQMLDL LRPIYEKTAA
YGHFGREEPE FSWEAADKAL ALAEAAGVEP AVQVA
