METK_DICDI
ID METK_DICDI Reviewed; 384 AA.
AC Q54F07;
DT 08-APR-2008, integrated into UniProtKB/Swiss-Prot.
DT 24-MAY-2005, sequence version 1.
DT 03-AUG-2022, entry version 114.
DE RecName: Full=S-adenosylmethionine synthase;
DE Short=AdoMet synthase;
DE EC=2.5.1.6 {ECO:0000250|UniProtKB:Q00266};
DE AltName: Full=Methionine adenosyltransferase;
DE Short=MAT;
GN Name=metK; ORFNames=DDB_G0291179;
OS Dictyostelium discoideum (Slime mold).
OC Eukaryota; Amoebozoa; Evosea; Eumycetozoa; Dictyostelia; Dictyosteliales;
OC Dictyosteliaceae; Dictyostelium.
OX NCBI_TaxID=44689;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=AX4;
RX PubMed=15875012; DOI=10.1038/nature03481;
RA Eichinger L., Pachebat J.A., Gloeckner G., Rajandream M.A., Sucgang R.,
RA Berriman M., Song J., Olsen R., Szafranski K., Xu Q., Tunggal B.,
RA Kummerfeld S., Madera M., Konfortov B.A., Rivero F., Bankier A.T.,
RA Lehmann R., Hamlin N., Davies R., Gaudet P., Fey P., Pilcher K., Chen G.,
RA Saunders D., Sodergren E.J., Davis P., Kerhornou A., Nie X., Hall N.,
RA Anjard C., Hemphill L., Bason N., Farbrother P., Desany B., Just E.,
RA Morio T., Rost R., Churcher C.M., Cooper J., Haydock S., van Driessche N.,
RA Cronin A., Goodhead I., Muzny D.M., Mourier T., Pain A., Lu M., Harper D.,
RA Lindsay R., Hauser H., James K.D., Quiles M., Madan Babu M., Saito T.,
RA Buchrieser C., Wardroper A., Felder M., Thangavelu M., Johnson D.,
RA Knights A., Loulseged H., Mungall K.L., Oliver K., Price C., Quail M.A.,
RA Urushihara H., Hernandez J., Rabbinowitsch E., Steffen D., Sanders M.,
RA Ma J., Kohara Y., Sharp S., Simmonds M.N., Spiegler S., Tivey A.,
RA Sugano S., White B., Walker D., Woodward J.R., Winckler T., Tanaka Y.,
RA Shaulsky G., Schleicher M., Weinstock G.M., Rosenthal A., Cox E.C.,
RA Chisholm R.L., Gibbs R.A., Loomis W.F., Platzer M., Kay R.R.,
RA Williams J.G., Dear P.H., Noegel A.A., Barrell B.G., Kuspa A.;
RT "The genome of the social amoeba Dictyostelium discoideum.";
RL Nature 435:43-57(2005).
RN [2]
RP PROTEIN SEQUENCE OF 156-176; 237-272; 291-300 AND 350-360, AND
RP IDENTIFICATION BY MASS SPECTROMETRY.
RA Bienvenut W.V., Patel H., Brunton V.G., Frame M.C.;
RL Submitted (JUL-2007) to UniProtKB.
RN [3]
RP IDENTIFICATION BY MASS SPECTROMETRY [LARGE SCALE ANALYSIS].
RC STRAIN=AX2;
RX PubMed=16926386; DOI=10.1074/mcp.m600113-mcp200;
RA Gotthardt D., Blancheteau V., Bosserhoff A., Ruppert T., Delorenzi M.,
RA Soldati T.;
RT "Proteomics fingerprinting of phagosome maturation and evidence for the
RT role of a Galpha during uptake.";
RL Mol. Cell. Proteomics 5:2228-2243(2006).
CC -!- FUNCTION: Catalyzes the formation of S-adenosylmethionine from
CC methionine and ATP. The reaction comprises two steps that are both
CC catalyzed by the same enzyme: formation of S-adenosylmethionine
CC (AdoMet) and triphosphate, and subsequent hydrolysis of the
CC triphosphate. {ECO:0000250|UniProtKB:Q00266}.
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:0000250|UniProtKB:Q00266};
CC -!- COFACTOR:
CC Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC Evidence={ECO:0000250|UniProtKB:P13444};
CC Note=Binds 2 magnesium ions per subunit. The magnesium ions interact
CC primarily with the substrate. {ECO:0000250|UniProtKB:P13444};
CC -!- COFACTOR:
CC Name=K(+); Xref=ChEBI:CHEBI:29103;
CC Evidence={ECO:0000250|UniProtKB:P13444};
CC Note=Binds 1 potassium ion per subunit. The potassium ion interacts
CC primarily with the substrate. {ECO:0000250|UniProtKB:P13444};
CC -!- PATHWAY: Amino-acid biosynthesis; S-adenosyl-L-methionine biosynthesis;
CC S-adenosyl-L-methionine from L-methionine: step 1/1.
CC {ECO:0000250|UniProtKB:Q00266}.
CC -!- SIMILARITY: Belongs to the AdoMet synthase family. {ECO:0000305}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; AAFI02000175; EAL61873.1; -; Genomic_DNA.
DR RefSeq; XP_635383.1; XM_630291.1.
DR AlphaFoldDB; Q54F07; -.
DR SMR; Q54F07; -.
DR STRING; 44689.DDB0230070; -.
DR PaxDb; Q54F07; -.
DR EnsemblProtists; EAL61873; EAL61873; DDB_G0291179.
DR GeneID; 8628031; -.
DR KEGG; ddi:DDB_G0291179; -.
DR dictyBase; DDB_G0291179; metK.
DR eggNOG; KOG1506; Eukaryota.
DR HOGENOM; CLU_041802_0_1_1; -.
DR InParanoid; Q54F07; -.
DR OMA; MPYLRPD; -.
DR PhylomeDB; Q54F07; -.
DR Reactome; R-DDI-156581; Methylation.
DR Reactome; R-DDI-1614635; Sulfur amino acid metabolism.
DR Reactome; R-DDI-2408508; Metabolism of ingested SeMet, Sec, MeSec into H2Se.
DR UniPathway; UPA00315; UER00080.
DR PRO; PR:Q54F07; -.
DR Proteomes; UP000002195; Chromosome 5.
DR GO; GO:0005829; C:cytosol; IBA:GO_Central.
DR GO; GO:0031012; C:extracellular matrix; HDA:dictyBase.
DR GO; GO:0048269; C:methionine adenosyltransferase complex; ISS:dictyBase.
DR GO; GO:0045335; C:phagocytic vesicle; HDA:dictyBase.
DR GO; GO:0005524; F:ATP binding; IEA:UniProtKB-KW.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0004478; F:methionine adenosyltransferase activity; ISS:dictyBase.
DR GO; GO:0006555; P:methionine metabolic process; ISS:dictyBase.
DR GO; GO:0006730; P:one-carbon metabolic process; IEA:UniProtKB-KW.
DR GO; GO:0006556; P:S-adenosylmethionine biosynthetic process; IBA:GO_Central.
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 1: Evidence at protein level;
KW ATP-binding; Direct protein sequencing; Magnesium; Metal-binding;
KW Nucleotide-binding; One-carbon metabolism; Potassium; Reference proteome;
KW Transferase.
FT CHAIN 1..384
FT /note="S-adenosylmethionine synthase"
FT /id="PRO_0000327778"
FT BINDING 9
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000250|UniProtKB:P13444"
FT BINDING 15
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:0000250|UniProtKB:Q00266"
FT BINDING 43
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000250|UniProtKB:P0A817"
FT BINDING 56
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:0000250|UniProtKB:P0A817"
FT BINDING 99
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:0000250|UniProtKB:P0A817"
FT BINDING 166..168
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:0000250|UniProtKB:Q00266"
FT BINDING 234..237
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:0000250|UniProtKB:Q00266"
FT BINDING 245
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:0000250|UniProtKB:Q00266"
FT BINDING 245
FT /ligand="L-methionine"
FT /ligand_id="ChEBI:CHEBI:57844"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /evidence="ECO:0000250|UniProtKB:P0A817"
FT BINDING 251..252
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:0000250|UniProtKB:P0A817"
FT BINDING 268
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /evidence="ECO:0000250|UniProtKB:P0A817"
FT BINDING 272
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /evidence="ECO:0000250|UniProtKB:P0A817"
FT BINDING 276
FT /ligand="ATP"
FT /ligand_id="ChEBI:CHEBI:30616"
FT /ligand_note="ligand shared between two neighboring
FT subunits"
FT /evidence="ECO:0000250|UniProtKB:P13444"
FT BINDING 276
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:0000250|UniProtKB:P0A817"
SQ SEQUENCE 384 AA; 41763 MW; 7335A77CA648E696 CRC64;
MSSYLFTSES VTEGHPDKIC DQVSDAVLDA CLAQDPLSKV ACETATKTGM VMILGEITTK
ANVDYQKVVR EAVKKIGYDD SSKGFDYKTC NVLVAIEQQS PDIAQGVHIG KVNPEDIGAG
DQGHMFGYAT NETPTLMPLT HFLASELVNK LTELRHNGTL AWARPDAKTQ VTVEYKKEGH
KITPVRVHTI VISTQHDEKV TNEQIRADLK ELVIKAVVPA QYLDDNTIYH LNPSGRFVIG
GPMGDSGLTG RKIIIDSYGG WGAHGGGAFS GKDATKVDRS GAYAARWIAK SLVAAGLADR
CLVQVSYSIG VAKPLSVFVD TYGTGKKTDA EILAIIDNNF DLRPGCLMRD LQLTRPIFQK
TASGGHFGRN DPDFTWETVK ELKM
