MetK

• Description: S-adenosylmethionine synthetase
  
  

Gene name	metK
Synonyms	metE
Essential	yes PubMed
Product	S-adenosylmethionine synthetase
Function	S-adenosylmethionine synthesis
Gene expression levels in SubtiExpress: metK
Metabolic function and regulation of this protein in SubtiPathways: Cys, Met & Sulfate assimilation
MW, pI	43 kDa, 5.025
Gene length, protein length	1200 bp, 400 aa
Immediate neighbours	asnB, pckA
Sequences	Protein DNA DNA_with_flanks
Genetic context This image was kindly provided by SubtiList
Expression at a glance   PubMed

Categories containing this gene/protein

biosynthesis/ acquisition of amino acids, essential genes

This gene is a member of the following regulons

S-box

The gene

Basic information

• Locus tag: BSU30550

Phenotypes of a mutant

essential PubMed

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: ATP + L-methionine + H₂O = phosphate + diphosphate + S-adenosyl-L-methionine (according to Swiss-Prot)

• Protein family: AdoMet synthetase family (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization:

Database entries

• Structure: 1FUG (from Escherichia coli, 63% identity, 75% similarity) PubMed

• UniProt: P54419

• KEGG entry: [3]

• E.C. number: 2.5.1.6

Expression and regulation

• Operon: metK PubMed

• Expression browser: metK PubMed

• Sigma factor:

• Regulation:
  • induced by methionine starvation (S-box) PubMed

• Regulatory mechanism:
  • S-box: riboswitch, binds S-adenosylmethionine resulting in transcription termination PubMed

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion: pGP432 (in pAC7), available in Stülke lab

• GFP fusion:

• two-hybrid system:

• Antibody: