METK1_YEAST
ID METK1_YEAST Reviewed; 382 AA.
AC P10659; D6VYI4;
DT 01-JUL-1989, integrated into UniProtKB/Swiss-Prot.
DT 01-FEB-1996, sequence version 2.
DT 03-AUG-2022, entry version 211.
DE RecName: Full=S-adenosylmethionine synthase 1;
DE Short=AdoMet synthase 1;
DE EC=2.5.1.6 {ECO:0000305|PubMed:3316224};
DE AltName: Full=Methionine adenosyltransferase 1;
DE Short=MAT 1;
GN Name=SAM1; Synonyms=ETH10; OrderedLocusNames=YLR180W; ORFNames=L9470.9;
OS Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (Baker's yeast).
OC Eukaryota; Fungi; Dikarya; Ascomycota; Saccharomycotina; Saccharomycetes;
OC Saccharomycetales; Saccharomycetaceae; Saccharomyces.
OX NCBI_TaxID=559292;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA], FUNCTION, CATALYTIC ACTIVITY, AND
RP PATHWAY.
RX PubMed=3316224; DOI=10.1016/s0021-9258(18)49312-x;
RA Thomas D., Surdin-Kerjan Y.;
RT "SAM1, the structural gene for one of the S-adenosylmethionine synthetases
RT in Saccharomyces cerevisiae. Sequence and expression.";
RL J. Biol. Chem. 262:16704-16709(1987).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 204508 / S288c;
RX PubMed=9169871;
RA Johnston M., Hillier L.W., Riles L., Albermann K., Andre B., Ansorge W.,
RA Benes V., Brueckner M., Delius H., Dubois E., Duesterhoeft A.,
RA Entian K.-D., Floeth M., Goffeau A., Hebling U., Heumann K.,
RA Heuss-Neitzel D., Hilbert H., Hilger F., Kleine K., Koetter P., Louis E.J.,
RA Messenguy F., Mewes H.-W., Miosga T., Moestl D., Mueller-Auer S.,
RA Nentwich U., Obermaier B., Piravandi E., Pohl T.M., Portetelle D.,
RA Purnelle B., Rechmann S., Rieger M., Rinke M., Rose M., Scharfe M.,
RA Scherens B., Scholler P., Schwager C., Schwarz S., Underwood A.P.,
RA Urrestarazu L.A., Vandenbol M., Verhasselt P., Vierendeels F., Voet M.,
RA Volckaert G., Voss H., Wambutt R., Wedler E., Wedler H., Zimmermann F.K.,
RA Zollner A., Hani J., Hoheisel J.D.;
RT "The nucleotide sequence of Saccharomyces cerevisiae chromosome XII.";
RL Nature 387:87-90(1997).
RN [3]
RP GENOME REANNOTATION.
RC STRAIN=ATCC 204508 / S288c;
RX PubMed=24374639; DOI=10.1534/g3.113.008995;
RA Engel S.R., Dietrich F.S., Fisk D.G., Binkley G., Balakrishnan R.,
RA Costanzo M.C., Dwight S.S., Hitz B.C., Karra K., Nash R.S., Weng S.,
RA Wong E.D., Lloyd P., Skrzypek M.S., Miyasato S.R., Simison M., Cherry J.M.;
RT "The reference genome sequence of Saccharomyces cerevisiae: Then and now.";
RL G3 (Bethesda) 4:389-398(2014).
RN [4]
RP PROTEIN SEQUENCE OF 157-162; 187-196 AND 253-258.
RC STRAIN=ATCC 38531 / Y41;
RX PubMed=8935650; DOI=10.1111/j.1574-6968.1996.tb08073.x;
RA Norbeck J., Blomberg A.;
RT "Protein expression during exponential growth in 0.7 M NaCl medium of
RT Saccharomyces cerevisiae.";
RL FEMS Microbiol. Lett. 137:1-8(1996).
RN [5]
RP LEVEL OF PROTEIN EXPRESSION [LARGE SCALE ANALYSIS].
RX PubMed=14562106; DOI=10.1038/nature02046;
RA Ghaemmaghami S., Huh W.-K., Bower K., Howson R.W., Belle A., Dephoure N.,
RA O'Shea E.K., Weissman J.S.;
RT "Global analysis of protein expression in yeast.";
RL Nature 425:737-741(2003).
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:0000305|PubMed:3316224}.
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:0000305|PubMed:3316224};
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:0000269|PubMed:3316224}.
CC -!- SUBUNIT: Heterotetramer.
CC -!- INTERACTION:
CC P10659; P19358: SAM2; NbExp=4; IntAct=EBI-10789, EBI-10795;
CC -!- MISCELLANEOUS: In yeast, there are two genes coding for AdoMet
CC synthase.
CC -!- MISCELLANEOUS: Present with 103000 molecules/cell in log phase SD
CC medium. {ECO:0000269|PubMed:14562106}.
CC -!- SIMILARITY: Belongs to the AdoMet synthase family. {ECO:0000305}.
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DR EMBL; J03477; AAA66932.1; -; Genomic_DNA.
DR EMBL; U17246; AAB67461.1; -; Genomic_DNA.
DR EMBL; BK006945; DAA09500.1; -; Genomic_DNA.
DR PIR; S51425; S51425.
DR RefSeq; NP_013281.1; NM_001182067.1.
DR AlphaFoldDB; P10659; -.
DR SMR; P10659; -.
DR BioGRID; 31451; 277.
DR DIP; DIP-6667N; -.
DR IntAct; P10659; 166.
DR MINT; P10659; -.
DR STRING; 4932.YLR180W; -.
DR iPTMnet; P10659; -.
DR MaxQB; P10659; -.
DR PaxDb; P10659; -.
DR PRIDE; P10659; -.
DR EnsemblFungi; YLR180W_mRNA; YLR180W; YLR180W.
DR GeneID; 850877; -.
DR KEGG; sce:YLR180W; -.
DR SGD; S000004170; SAM1.
DR VEuPathDB; FungiDB:YLR180W; -.
DR eggNOG; KOG1506; Eukaryota.
DR GeneTree; ENSGT00950000183185; -.
DR HOGENOM; CLU_041802_0_1_1; -.
DR InParanoid; P10659; -.
DR OMA; INPTGRY; -.
DR BioCyc; MetaCyc:YLR180W-MON; -.
DR BioCyc; YEAST:YLR180W-MON; -.
DR Reactome; R-SCE-156581; Methylation.
DR Reactome; R-SCE-1614635; Sulfur amino acid metabolism.
DR Reactome; R-SCE-2408508; Metabolism of ingested SeMet, Sec, MeSec into H2Se.
DR UniPathway; UPA00315; UER00080.
DR PRO; PR:P10659; -.
DR Proteomes; UP000002311; Chromosome XII.
DR RNAct; P10659; protein.
DR GO; GO:0005737; C:cytoplasm; HDA:SGD.
DR GO; GO:0010494; C:cytoplasmic stress granule; HDA:SGD.
DR GO; GO:0005829; C:cytosol; IBA:GO_Central.
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; IGI:SGD.
DR GO; GO:0006555; P:methionine metabolic process; IMP:SGD.
DR GO; GO:0006730; P:one-carbon metabolic process; IEA:UniProtKB-KW.
DR GO; GO:0006556; P:S-adenosylmethionine biosynthetic process; IMP:SGD.
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..382
FT /note="S-adenosylmethionine synthase 1"
FT /id="PRO_0000174451"
FT BINDING 10
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000250|UniProtKB:P13444"
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:0000250|UniProtKB:Q00266"
FT BINDING 44
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000250|UniProtKB:P0A817"
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:0000250|UniProtKB:P0A817"
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: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"
FT CONFLICT 246
FT /note="A -> T (in Ref. 1; AAA66932)"
FT /evidence="ECO:0000305"
FT CONFLICT 357
FT /note="I -> F (in Ref. 1; AAA66932)"
FT /evidence="ECO:0000305"
SQ SEQUENCE 382 AA; 41818 MW; 18F82FC809EE4706 CRC64;
MAGTFLFTSE SVGEGHPDKI CDQVSDAILD ACLAEDPHSK VACETAAKTG MIMVFGEITT
KAQLDYQKIV RDTIKKIGYD DSAKGFDYKT CNVLVAIEQQ SPDIAQGVHE EKDLEDIGAG
DQGIMFGYAT DETPEGLPLT ILLAHKLNMA MADARRDGSL AWLRPDTKTQ VTVEYKDDHG
RWVPQRIDTV VVSAQHADEI TTEDLRAQLK SEIIEKVIPR DMLDENTKYF IQPSGRFVIG
GPQGDAGLTG RKIIVDAYGG ASSVGGGAFS GKDYSKVDRS AAYAARWVAK SLVAAGLCKR
VQVQFSYAIG IAEPLSLHVD TYGTATKSDE EIIDIISKNF DLRPGVLVKE LDLARPIYLP
TASYGHFTNQ EYPWEKPKTL KF
