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Protein

S-adenosylmethionine synthase

Gene

metK

Organism
Thermobifida fusca (strain YX)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Catalyzes the formation of S-adenosylmethionine (AdoMet) from methionine and ATP. The overall synthetic reaction is composed of two sequential steps, AdoMet formation and the subsequent tripolyphosphate hydrolysis which occurs prior to release of AdoMet from the enzyme.UniRule annotation

Catalytic activityi

ATP + L-methionine + H2O = phosphate + diphosphate + S-adenosyl-L-methionine.UniRule annotation

Cofactori

Protein has several cofactor binding sites:
  • Mg2+UniRule annotationNote: Binds 2 divalent ions per subunit.UniRule annotation
  • K+UniRule annotationNote: Binds 1 potassium ion per subunit.UniRule annotation

Pathwayi: S-adenosyl-L-methionine biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes S-adenosyl-L-methionine from L-methionine.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. S-adenosylmethionine synthase (metK)
This subpathway is part of the pathway S-adenosyl-L-methionine biosynthesis, which is itself part of Amino-acid biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes S-adenosyl-L-methionine from L-methionine, the pathway S-adenosyl-L-methionine biosynthesis and in Amino-acid biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Binding sitei15ATPUniRule annotation1
Metal bindingi17MagnesiumUniRule annotation1
Metal bindingi43PotassiumUniRule annotation1
Binding sitei56MethionineUniRule annotation1
Binding sitei99MethionineUniRule annotation1
Binding sitei251ATP; shared with neighboring subunitUniRule annotation1
Binding sitei251Methionine; shared with neighboring subunitUniRule annotation1
Binding sitei274ATP; via amide nitrogen; shared with neighboring subunitUniRule annotation1
Binding sitei278ATP; shared with neighboring subunitUniRule annotation1
Binding sitei282MethionineUniRule annotation1

Regions

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Nucleotide bindingi174 – 176ATPUniRule annotation3
Nucleotide bindingi242 – 243ATPUniRule annotation2
Nucleotide bindingi257 – 258ATPUniRule annotation2

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Transferase

Keywords - Biological processi

One-carbon metabolism

Keywords - Ligandi

ATP-binding, Magnesium, Metal-binding, Nucleotide-binding, Potassium

Enzyme and pathway databases

UniPathwayiUPA00315; UER00080.

Names & Taxonomyi

Protein namesi
Recommended name:
S-adenosylmethionine synthaseUniRule annotation (EC:2.5.1.6UniRule annotation)
Short name:
AdoMet synthaseUniRule annotation
Alternative name(s):
MATUniRule annotation
Methionine adenosyltransferaseUniRule annotation
Gene namesi
Name:metKUniRule annotation
Ordered Locus Names:Tfu_1065
OrganismiThermobifida fusca (strain YX)
Taxonomic identifieri269800 [NCBI]
Taxonomic lineageiBacteriaActinobacteriaStreptosporangialesNocardiopsaceaeThermobifida
Proteomesi
  • UP000000434 Componenti: Chromosome

Subcellular locationi

  • Cytoplasm UniRule annotation

GO - Cellular componenti

Complete GO annotation...

Keywords - Cellular componenti

Cytoplasm

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00002410521 – 397S-adenosylmethionine synthaseAdd BLAST397

Proteomic databases

PRIDEiQ47R14.

Interactioni

Subunit structurei

Homotetramer; dimer of dimers.UniRule annotation

Protein-protein interaction databases

STRINGi269800.Tfu_1065.

Structurei

3D structure databases

ProteinModelPortaliQ47R14.
ModBaseiSearch...
MobiDBiSearch...

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni99 – 109Flexible loopUniRule annotationAdd BLAST11

Sequence similaritiesi

Belongs to the AdoMet synthase family.UniRule annotation

Phylogenomic databases

eggNOGiENOG4105CPH. Bacteria.
COG0192. LUCA.
HOGENOMiHOG000245710.
KOiK00789.
OMAiDNFLAFD.
OrthoDBiPOG091H00IO.

Family and domain databases

HAMAPiMF_00086. S_AdoMet_synth1. 1 hit.
InterProiIPR022631. ADOMET_SYNTHASE_CS.
IPR022630. S-AdoMet_synt_C.
IPR022629. S-AdoMet_synt_central.
IPR022628. S-AdoMet_synt_N.
IPR002133. S-AdoMet_synthetase.
IPR022636. S-AdoMet_synthetase_sfam.
[Graphical view]
PANTHERiPTHR11964. PTHR11964. 1 hit.
PfamiPF02773. S-AdoMet_synt_C. 1 hit.
PF02772. S-AdoMet_synt_M. 1 hit.
PF00438. S-AdoMet_synt_N. 1 hit.
[Graphical view]
PIRSFiPIRSF000497. MAT. 1 hit.
SUPFAMiSSF55973. SSF55973. 3 hits.
TIGRFAMsiTIGR01034. metK. 1 hit.
PROSITEiPS00376. ADOMET_SYNTHASE_1. 1 hit.
PS00377. ADOMET_SYNTHASE_2. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q47R14-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MSRRLFTSES VTEGHPDKIA DQISDAILDS MLRDDPHSRV AVETLITTGL
60 70 80 90 100
VHVAGEVTTS TYVDIPTIIR EKILEIGYDS SAKGFDGASC GVSVSIGGQS
110 120 130 140 150
PDIAQGVDNA YEAREEEIFD DLDRQGAGDQ GLMFGYANNE TPELMPLPIT
160 170 180 190 200
LAHALSQRLA EVRRDGTIPY LRPDGKTQVT VEYDGNRPVR LDTVVVSSQH
210 220 230 240 250
APDIDLRELL TPDIKEHVVD PVVARYNLEA DNYRLLVNPT GRFEIGGPMG
260 270 280 290 300
DAGLTGRKII VDTYGGYARH GGGAFSGKDP SKVDRSAAYA TRWVAKNIVA
310 320 330 340 350
AGLADRVEVQ VAYAIGKAHP VGVFLETFGT EKVAPEQLEK AVLEVFDLRP
360 370 380 390
AAIIRDLDLL RPIYSQTSVY GHFGRELPDF TWERTDRVDA LKAAVGA
Length:397
Mass (Da):43,190
Last modified:September 13, 2005 - v1
Checksum:i101C56053EA3E22C
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000088 Genomic DNA. Translation: AAZ55103.1.
RefSeqiWP_011291512.1. NC_007333.1.

Genome annotation databases

EnsemblBacteriaiAAZ55103; AAZ55103; Tfu_1065.
KEGGitfu:Tfu_1065.
PATRICi23902620. VBITheFus33945_1110.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
CP000088 Genomic DNA. Translation: AAZ55103.1.
RefSeqiWP_011291512.1. NC_007333.1.

3D structure databases

ProteinModelPortaliQ47R14.
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi269800.Tfu_1065.

Proteomic databases

PRIDEiQ47R14.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAZ55103; AAZ55103; Tfu_1065.
KEGGitfu:Tfu_1065.
PATRICi23902620. VBITheFus33945_1110.

Phylogenomic databases

eggNOGiENOG4105CPH. Bacteria.
COG0192. LUCA.
HOGENOMiHOG000245710.
KOiK00789.
OMAiDNFLAFD.
OrthoDBiPOG091H00IO.

Enzyme and pathway databases

UniPathwayiUPA00315; UER00080.

Family and domain databases

HAMAPiMF_00086. S_AdoMet_synth1. 1 hit.
InterProiIPR022631. ADOMET_SYNTHASE_CS.
IPR022630. S-AdoMet_synt_C.
IPR022629. S-AdoMet_synt_central.
IPR022628. S-AdoMet_synt_N.
IPR002133. S-AdoMet_synthetase.
IPR022636. S-AdoMet_synthetase_sfam.
[Graphical view]
PANTHERiPTHR11964. PTHR11964. 1 hit.
PfamiPF02773. S-AdoMet_synt_C. 1 hit.
PF02772. S-AdoMet_synt_M. 1 hit.
PF00438. S-AdoMet_synt_N. 1 hit.
[Graphical view]
PIRSFiPIRSF000497. MAT. 1 hit.
SUPFAMiSSF55973. SSF55973. 3 hits.
TIGRFAMsiTIGR01034. metK. 1 hit.
PROSITEiPS00376. ADOMET_SYNTHASE_1. 1 hit.
PS00377. ADOMET_SYNTHASE_2. 1 hit.
[Graphical view]
ProtoNetiSearch...

Entry informationi

Entry nameiMETK_THEFY
AccessioniPrimary (citable) accession number: Q47R14
Entry historyi
Integrated into UniProtKB/Swiss-Prot: June 27, 2006
Last sequence update: September 13, 2005
Last modified: November 2, 2016
This is version 88 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.