MtnN

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  • Description: methylthioadenosine nucleosidase

Gene name mtnN
Synonyms yrrU, mtn
Essential no
Product methylthioadenosine nucleosidase
Function methionine salvage
Metabolic function and regulation of this protein in SubtiPathways:
Cys, Met & Sulfate assimilation
MW, pI 25 kDa, 4.844
Gene length, protein length 693 bp, 231 aa
Immediate neighbours mccA, yrrT
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
Mtn context.gif
This image was kindly provided by SubtiList
Expression at a glance   PubMed
MtnN expression.png




























Categories containing this gene/protein

biosynthesis/ acquisition of amino acids

This gene is a member of the following regulons

CymR regulon, Spx regulon

The gene

Basic information

  • Locus tag: BSU27270

Phenotypes of a mutant

Database entries

  • DBTBS entry: [1]
  • SubtiList entry: [2]

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: S-adenosyl-L-homocysteine + H2O = S-(5-deoxy-D-ribos-5-yl)-L-homocysteine + adenine (according to Swiss-Prot)
  • Protein family: MtnN subfamily (according to Swiss-Prot)
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification:
  • Cofactor(s):
  • Effectors of protein activity:

Database entries

  • Structure: 1JYS (from Escherichia coli, 51% identity, 70% similarity) PubMed
  • KEGG entry: [3]

Additional information

Expression and regulation

  • Regulation:
    • repressed in the presence of cysteine (CymR) PubMed
  • Regulatory mechanism:
  • Additional information:

Biological materials

  • Mutant:
  • Expression vector:
  • lacZ fusion:
  • GFP fusion:
  • two-hybrid system:
  • Antibody:

Labs working on this gene/protein

Your additional remarks

References

Marie-Françoise Hullo, Sandrine Auger, Olga Soutourina, Octavian Barzu, Mireille Yvon, Antoine Danchin, Isabelle Martin-Verstraete
Conversion of methionine to cysteine in Bacillus subtilis and its regulation.
J Bacteriol: 2007, 189(1);187-97
[PubMed:17056751] [WorldCat.org] [DOI] (P p)

Soon-Yong Choi, Dindo Reyes, Montira Leelakriangsak, Peter Zuber
The global regulator Spx functions in the control of organosulfur metabolism in Bacillus subtilis.
J Bacteriol: 2006, 188(16);5741-51
[PubMed:16885442] [WorldCat.org] [DOI] (P p)

Sergine Even, Pierre Burguière, Sandrine Auger, Olga Soutourina, Antoine Danchin, Isabelle Martin-Verstraete
Global control of cysteine metabolism by CymR in Bacillus subtilis.
J Bacteriol: 2006, 188(6);2184-97
[PubMed:16513748] [WorldCat.org] [DOI] (P p)

Agnieszka Sekowska, Valérie Dénervaud, Hiroki Ashida, Karine Michoud, Dieter Haas, Akiho Yokota, Antoine Danchin
Bacterial variations on the methionine salvage pathway.
BMC Microbiol: 2004, 4;9
[PubMed:15102328] [WorldCat.org] [DOI] (I e)

Shunji Nakano, Michiko M Nakano, Ying Zhang, Montira Leelakriangsak, Peter Zuber
A regulatory protein that interferes with activator-stimulated transcription in bacteria.
Proc Natl Acad Sci U S A: 2003, 100(7);4233-8
[PubMed:12642660] [WorldCat.org] [DOI] (P p)