MtnX

• Description: 2-hydroxy-3-keto-5-methylthiopentenyl-1-phosphate phosphatase
  
  

Gene name	mtnX
Synonyms	ykrX
Essential	no
Product	2-hydroxy-3-keto-5-methylthiopentenyl- 1-phosphate phosphatase
Function	methionine salvage
Gene expression levels in SubtiExpress: mtnX
Metabolic function and regulation of this protein in SubtiPathways: mtnX
MW, pI	26 kDa, 4.658
Gene length, protein length	705 bp, 235 aa
Immediate neighbours	mtnW, mtnB
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

This gene is a member of the following regulons

S-box

The gene

Basic information

• Locus tag: BSU13600

Database entries

• BsubCyc: BSU13600

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: 2-hydroxy-5-(methylthio)-3-oxopent-1-enyl phosphate + H₂O = 1,2-dihydroxy-5-(methylthio)pent-1-en-3-one + phosphate (according to Swiss-Prot)

• Protein family: MtnX 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

• BsubCyc: BSU13600

• Structure: 2FEA

• UniProt: O31667

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: mtnW-mtnX-mtnB-mtnD PubMed

• Expression browser: mtnX PubMed

• Sigma factor: SigA PubMed

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

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

• Additional information:
  • number of protein molecules per cell (minimal medium with glucose and ammonium): 340 PubMed

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Jerneja Tomsic, Brooke A McDaniel, Frank J Grundy, Tina M Henkin
Natural variability in S-adenosylmethionine (SAM)-dependent riboswitches: S-box elements in bacillus subtilis exhibit differential sensitivity to SAM In vivo and in vitro.
J Bacteriol: 2008, 190(3);823-33
[PubMed:18039762] [WorldCat.org] [DOI] (I p)

Qingping Xu, Kumar Singh Saikatendu, S Sri Krishna, Daniel McMullan, Polat Abdubek, Sanjay Agarwalla, Eileen Ambing, Tamara Astakhova, Herbert L Axelrod, Dennis Carlton, Hsiu-Ju Chiu, Thomas Clayton, Michael DiDonato, Lian Duan, Marc-André Elsliger, Julie Feuerhelm, Slawomir K Grzechnik, Joanna Hale, Eric Hampton, Gye Won Han, Justin Haugen, Lukasz Jaroszewski, Kevin K Jin, Heath E Klock, Mark W Knuth, Eric Koesema, Mitchell D Miller, Andrew T Morse, Edward Nigoghossian, Linda Okach, Silvya Oommachen, Jessica Paulsen, Ron Reyes, Christopher L Rife, Robert Schwarzenbacher, Henry van den Bedem, Aprilfawn White, Guenter Wolf, Keith O Hodgson, John Wooley, Ashley M Deacon, Adam Godzik, Scott A Lesley, Ian A Wilson
Crystal structure of MtnX phosphatase from Bacillus subtilis at 2.0 angstroms resolution provides a structural basis for bipartite phosphomonoester hydrolysis of 2-hydroxy-3-keto-5-methylthiopentenyl-1-phosphate.
Proteins: 2007, 69(2);433-9
[PubMed:17654724] [WorldCat.org] [DOI] (I 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)

Maumita Mandal, Benjamin Boese, Jeffrey E Barrick, Wade C Winkler, Ronald R Breaker
Riboswitches control fundamental biochemical pathways in Bacillus subtilis and other bacteria.
Cell: 2003, 113(5);577-86
[PubMed:12787499] [WorldCat.org] [DOI] (P p)

Ulrike Mäder, Georg Homuth, Christian Scharf, Knut Büttner, Rüdiger Bode, Michael Hecker
Transcriptome and proteome analysis of Bacillus subtilis gene expression modulated by amino acid availability.
J Bacteriol: 2002, 184(15);4288-95
[PubMed:12107147] [WorldCat.org] [DOI] (P p)

Agnieszka Sekowska, Antoine Danchin
The methionine salvage pathway in Bacillus subtilis.
BMC Microbiol: 2002, 2;8
[PubMed:12022921] [WorldCat.org] [DOI] (I e)

Brooke A Murphy, Frank J Grundy, Tina M Henkin
Prediction of gene function in methylthioadenosine recycling from regulatory signals.
J Bacteriol: 2002, 184(8);2314-8
[PubMed:11914366] [WorldCat.org] [DOI] (P p)