METK_BORBR
ID METK_BORBR Reviewed; 387 AA.
AC Q7WQX8;
DT 01-MAR-2004, integrated into UniProtKB/Swiss-Prot.
DT 01-MAR-2004, sequence version 2.
DT 03-AUG-2022, entry version 100.
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=BB0195;
OS Bordetella bronchiseptica (strain ATCC BAA-588 / NCTC 13252 / RB50)
OS (Alcaligenes bronchisepticus).
OC Bacteria; Proteobacteria; Betaproteobacteria; Burkholderiales;
OC Alcaligenaceae; Bordetella.
OX NCBI_TaxID=257310;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-588 / NCTC 13252 / RB50;
RX PubMed=12910271; DOI=10.1038/ng1227;
RA Parkhill J., Sebaihia M., Preston A., Murphy L.D., Thomson N.R.,
RA Harris D.E., Holden M.T.G., Churcher C.M., Bentley S.D., Mungall K.L.,
RA Cerdeno-Tarraga A.-M., Temple L., James K.D., Harris B., Quail M.A.,
RA Achtman M., Atkin R., Baker S., Basham D., Bason N., Cherevach I.,
RA Chillingworth T., Collins M., Cronin A., Davis P., Doggett J., Feltwell T.,
RA Goble A., Hamlin N., Hauser H., Holroyd S., Jagels K., Leather S.,
RA Moule S., Norberczak H., O'Neil S., Ormond D., Price C., Rabbinowitsch E.,
RA Rutter S., Sanders M., Saunders D., Seeger K., Sharp S., Simmonds M.,
RA Skelton J., Squares R., Squares S., Stevens K., Unwin L., Whitehead S.,
RA Barrell B.G., Maskell D.J.;
RT "Comparative analysis of the genome sequences of Bordetella pertussis,
RT Bordetella parapertussis and Bordetella bronchiseptica.";
RL Nat. Genet. 35:32-40(2003).
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}.
CC -!- SEQUENCE CAUTION:
CC Sequence=CAE30694.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR EMBL; BX640437; CAE30694.1; ALT_INIT; Genomic_DNA.
DR RefSeq; WP_010925730.1; NC_002927.3.
DR AlphaFoldDB; Q7WQX8; -.
DR SMR; Q7WQX8; -.
DR STRING; 257310.BB0195; -.
DR EnsemblBacteria; CAE30694; CAE30694; BB0195.
DR GeneID; 56481124; -.
DR GeneID; 66436510; -.
DR KEGG; bbr:BB0195; -.
DR eggNOG; COG0192; Bacteria.
DR HOGENOM; CLU_041802_1_1_4; -.
DR UniPathway; UPA00315; UER00080.
DR Proteomes; UP000001027; 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; Transferase.
FT CHAIN 1..387
FT /note="S-adenosylmethionine synthase"
FT /id="PRO_0000174496"
FT REGION 101..111
FT /note="Flexible loop"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00086"
FT BINDING 17
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 19
FT /ligand="Mg(2+)"
FT /ligand_id="ChEBI:CHEBI:18420"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00086"
FT BINDING 45
FT /ligand="K(+)"
FT /ligand_id="ChEBI:CHEBI:29103"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00086"
FT BINDING 58
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 101
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 168..170
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 234..235
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 243
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 243
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 249..250
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 266
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 270
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 274
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 387 AA; 42002 MW; 91F207251B1A4C94 CRC64;
MANNDFLFTS ESVSEGHPDK VADQISDAIL DAIFTQDPNA RVAAETLCNT GLVVLAGEIT
TTANVDYIQV ARDTIRHIGY DNTEYGIDYK GCAVLVAYDK QSPDIAQGVD RSSEDYLNQG
AGDQGLMFGY ACDETPDLMP APIWYAHRLV QRQSELRKDG RLPWLRPDAK SQVTFRYVDG
RPAEVDTVVL STQHSPEISQ ASIREAVIED IIKPSFPEGL ITPKTKFLVN PTGRFVIGGP
QGDCGLTGRK IIVDTYGGAC PHGGGAFSGK DPSKVDRSAA YAARYVAKNV VAAGLARQCQ
VQVSYAIGVA EPINITVYTE GTGVIPDEQI AKLVREHFDL RPKGIVNMLD LLRPIYTKTA
AYGHFGRSEP EFSWEATDKA AALKQGA
