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metE [Mon May 16 2016 17:04:19 GMT+0200 (CEST)]
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metE [Mon May 16 2016 17:04:19 GMT+0200 (CEST)]

methionine synthase
locus
BSU13180
pI
4.00
mw
86.00 kDa
function
biosynthesis of methionine
product
methionine synthase
essential
no
ec
2.1.1.14
synonyms
metC

Genomic Context

      

categories

  • [category|SW 2|Metabolism] → [category|SW 2.3|Amino acid/ nitrogen metabolism] → [category|SW 2.3.1|Biosynthesis/ acquisition of amino acids] → [category|SW 2.3.1.10|Biosynthesis/ acquisition of methionine/ S-adenosylmethionine]
  • [category|SW 6|Groups of genes] → [category|SW 6.4|Phosphoproteins] → [category|SW 6.4.8|Phosphorylation on either a Ser, Thr or Tyr residue]
  • [SW|Categories] containing this gene/protein

  • [SW|biosynthesis/ acquisition of amino acids], [SW|phosphoproteins], [SW|most abundant proteins]
  • This gene is a member of the following [SW|regulons]

  • [SW|S-box]
  • Gene

    Coordinates on the chromosome (coding sequence)
    1,383,320 -> 1,385,608

    The protein

    Catalyzed reaction/ biological activity

  • 5-methyltetrahydropteroyltri-L-glutamate L-homocysteine = tetrahydropteroyltri-L-glutamate L-methionine (according to Swiss-Prot)
  • Protein family

  • vitamin-B12 independent methionine synthase family (according to Swiss-Prot)
  • Modification

  • phosphorylated on ser/ thr/ tyr [Pubmed|17726680], S-cysteinylation after diamide stress (C719) [Pubmed|17611193]
  • Cys719 and Cys730 are S-bacillithiolated by NaOCl stress in B. subtilis and other Bacillus species [Pubmed|21749987] [Pubmed|22938038]
  • MetE is generally most strongly S-bacillithiolated by NaOCl stress in B. subtilis and other Bacillus species [Pubmed|21749987] [Pubmed|22938038]
  • Structure

  • [PDB|1T7L] (from ''Thermotoga maritima'', 44% identity, 61% similarity) [Pubmed|15630480]
  • [SW|Interactions]

  • [protein|search|BrxA]-[protein|search|MetE], to de-bacillithiolate S-bacillithiolated [protein|search|MetE] [Pubmed|24313874]
  • [protein|search|BrxB]-[protein|search|MetE], to de-bacillithiolate S-bacillithiolated [protein|search|MetE] [Pubmed|24313874]
  • Additional information

  • subject to Clp-dependent proteolysis upon glucose starvation [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids= 17981983 PubMed]
  • Expression and Regulation

    Operon

  • ''metE
  • Regulation

  • repressed by casamino acids [Pubmed|12107147]
  • repressed by methionine (about 1000-fold)([protein|search|S-box]) [Pubmed|10094622]
  • Regulatory mechanism

  • [protein|search|S-box]: transcription termination/ antitermination, the [protein|search|S-box] [SW|riboswitch] binds S-adenosylmethionine resulting in termination [Pubmed|10094622]
  • Additional information

  • subject to Clp-dependent proteolysis upon glucose starvation [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&dopt=Abstract&list_uids= 17981983 PubMed]
  • belongs to the 100 [SW|most abundant proteins] [PubMed|15378759]
  • Biological materials

    Mutant

  • 1A607 ( ''metE''::''erm''), [Pubmed|3015878], available at [http://pasture.asc.ohio-state.edu/BGSC/getdetail.cfm?bgscid=1A607&Search=1A607 BGSC]
  • References

    Reviews

  • 25852656
  • Original Publications

  • 21749987,22938038,21749987,19258532,16194229,10094622,17611193,18039762,17726680,12107147,24313874,24163341,15378759