GlmS

From SubtiWiki
Revision as of 10:12, 6 January 2010 by Jstuelk (talk | contribs) (References)
Jump to: navigation, search
  • Description: glutamine-fructose-6-phosphate transaminase

Gene name glmS
Synonyms gcaA, ybxD
Essential yes PubMed
Product glutamine-fructose-6-phosphate transaminase
Function cell wall synthesis
MW, pI 65 kDa, 4.796
Gene length, protein length 1800 bp, 600 aa
Immediate neighbours glmM, ybbU
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
GlmS context.gif
This image was kindly provided by SubtiList



The gene

Basic information

  • Locus tag: BSU01780

Phenotypes of a mutant

essential PubMed

Database entries

  • DBTBS entry: no entry
  • SubtiList entry: [1]

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: L-glutamine + D-fructose 6-phosphate = L-glutamate + D-glucosamine 6-phosphate (according to Swiss-Prot)
  • Protein family:
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification:
  • Cofactor(s):
  • Effectors of protein activity:
  • Interactions:
  • Localization: cytoplasm (according to Swiss-Prot)

Database entries

  • KEGG entry: [2]

Additional information

  • subject to Clp-dependent proteolysis upon glucose starvation PubMed

Expression and regulation

  • Regulation:
    • repressed by glucosamine, N-acetylglucosamine, N-propionylglucosamine or N-formylglucosamine PubMed
    • glmS is only expressed in the absence of glucosamine 6-phosphate (glmS ribozyme)
  • Regulatory mechanism: glmS ribozyme: glucosamine 6-phosphate binds the leader mRNA, and a riboswitch with ribozyme activity cleaves off the glmS section from the mRNA, resulting in stopp of transcript elongation
  • Additional information: subject to Clp-dependent proteolysis upon glucose starvation PubMed

Biological materials

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

Labs working on this gene/protein

Wade Winkler, University of Texas, USA, Homepage

Your additional remarks

References

Reviews

Philippe Durand, Béatrice Golinelli-Pimpaneau, Stéphane Mouilleron, Bernard Badet, Marie-Ange Badet-Denisot
Highlights of glucosamine-6P synthase catalysis.
Arch Biochem Biophys: 2008, 474(2);302-17
[PubMed:18279655] [WorldCat.org] [DOI] (I p)

Sławomir Milewski
Glucosamine-6-phosphate synthase--the multi-facets enzyme.
Biochim Biophys Acta: 2002, 1597(2);173-92
[PubMed:12044898] [WorldCat.org] [DOI] (P p)

The glmS Ribozyme

Other Original Publications