METK_MYCS5
ID METK_MYCS5 Reviewed; 382 AA.
AC Q4A5F4;
DT 27-JUN-2006, integrated into UniProtKB/Swiss-Prot.
DT 13-SEP-2005, sequence version 1.
DT 03-AUG-2022, entry version 99.
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=MS53_0610;
OS Mycoplasmopsis synoviae (strain 53) (Mycoplasma synoviae).
OC Bacteria; Tenericutes; Mollicutes; Mycoplasmataceae; Mycoplasmopsis.
OX NCBI_TaxID=262723;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=53;
RX PubMed=16077101; DOI=10.1128/jb.187.16.5568-5577.2005;
RA Vasconcelos A.T.R., Ferreira H.B., Bizarro C.V., Bonatto S.L.,
RA Carvalho M.O., Pinto P.M., Almeida D.F., Almeida L.G.P., Almeida R.,
RA Alves-Junior L., Assuncao E.N., Azevedo V.A.C., Bogo M.R., Brigido M.M.,
RA Brocchi M., Burity H.A., Camargo A.A., Camargo S.S., Carepo M.S.,
RA Carraro D.M., de Mattos Cascardo J.C., Castro L.A., Cavalcanti G.,
RA Chemale G., Collevatti R.G., Cunha C.W., Dallagiovanna B., Dambros B.P.,
RA Dellagostin O.A., Falcao C., Fantinatti-Garboggini F., Felipe M.S.S.,
RA Fiorentin L., Franco G.R., Freitas N.S.A., Frias D., Grangeiro T.B.,
RA Grisard E.C., Guimaraes C.T., Hungria M., Jardim S.N., Krieger M.A.,
RA Laurino J.P., Lima L.F.A., Lopes M.I., Loreto E.L.S., Madeira H.M.F.,
RA Manfio G.P., Maranhao A.Q., Martinkovics C.T., Medeiros S.R.B.,
RA Moreira M.A.M., Neiva M., Ramalho-Neto C.E., Nicolas M.F., Oliveira S.C.,
RA Paixao R.F.C., Pedrosa F.O., Pena S.D.J., Pereira M., Pereira-Ferrari L.,
RA Piffer I., Pinto L.S., Potrich D.P., Salim A.C.M., Santos F.R., Schmitt R.,
RA Schneider M.P.C., Schrank A., Schrank I.S., Schuck A.F., Seuanez H.N.,
RA Silva D.W., Silva R., Silva S.C., Soares C.M.A., Souza K.R.L., Souza R.C.,
RA Staats C.C., Steffens M.B.R., Teixeira S.M.R., Urmenyi T.P.,
RA Vainstein M.H., Zuccherato L.W., Simpson A.J.G., Zaha A.;
RT "Swine and poultry pathogens: the complete genome sequences of two strains
RT of Mycoplasma hyopneumoniae and a strain of Mycoplasma synoviae.";
RL J. Bacteriol. 187:5568-5577(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; AE017245; AAZ44017.1; -; Genomic_DNA.
DR RefSeq; WP_011283746.1; NC_007294.1.
DR AlphaFoldDB; Q4A5F4; -.
DR SMR; Q4A5F4; -.
DR STRING; 262723.MS53_0610; -.
DR EnsemblBacteria; AAZ44017; AAZ44017; MS53_0610.
DR KEGG; msy:MS53_0610; -.
DR eggNOG; COG0192; Bacteria.
DR HOGENOM; CLU_041802_1_1_14; -.
DR OMA; MPYLRPD; -.
DR UniPathway; UPA00315; UER00080.
DR Proteomes; UP000000549; Chromosome.
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; Reference proteome; Transferase.
FT CHAIN 1..382
FT /note="S-adenosylmethionine synthase"
FT /id="PRO_0000241007"
FT REGION 91..101
FT /note="Flexible loop"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00086"
FT BINDING 14
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 16
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00086"
FT BINDING 42
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00086"
FT BINDING 55
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 91
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 156..158
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 222..223
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 231
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 231
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 237..238
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 254
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 258
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 262
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 382 AA; 42344 MW; 8F2810A7EAC08F34 CRC64;
MKKLFTSESV GRGHPDKICD QISDAILDAY LTWDPHSKVA VETMVSGNNV FIAGEVKSKV
TVDVIEIAKN VLRNIGYYSN NTSFITDIKS QSENIAMGVN LQDSDDLGAG DQGFMFGYAT
NETSQYMPLG ITLCNKIVSR AGMLIKNQEF KDAKEDMKTQ VTLDYSDPQN VKVDTIIFSC
HHNEKYNETK FKNYIKTQIL KPVLDEFNLE LPERILINPT GKFVIGGPFS DTGLTGRKII
VDTYGGSARH GGGAFSGKDA TKLDRSGAYM ARWIAKNLVA ANIADKIEVQ IAYSIGVAKP
VSVMVNTFGE NKVPEDVVLD AILNNFELTP KGIIKSLNLN KPIYQKSSVY GHFGREDFQF
TWESLDKVEA IREFVISKGF NI
