FolE2

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  • Description: GTP cyclohydrolase IB, replaces FolE under conditions of zinc starvation

Gene name folE2
Synonyms yciA, folEB
Essential no
Product zinc-independent GTP cyclohydrolase IB
Function biosynthesis of folate
Gene expression levels in SubtiExpress: folE2
MW, pI 34 kDa, 7.831
Gene length, protein length 915 bp, 305 aa
Immediate neighbours nasA, yciB
Get the DNA and protein sequences
(Barbe et al., 2009)
Genetic context
YciA context.gif
This image was kindly provided by SubtiList
Expression at a glance   PubMed
FolE2 expression.png
























Categories containing this gene/protein

biosynthesis of cofactors

This gene is a member of the following regulons

Zur regulon

The gene

Basic information

  • Locus tag: BSU03340

Phenotypes of a mutant

Database entries

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

Additional information

The protein

Basic information/ Evolution

  • Catalyzed reaction/ biological activity: GTP + H2O = formate + 2-amino-4-hydroxy-6-(erythro-1,2,3-trihydroxypropyl)-dihydropteridine triphosphate (according to Swiss-Prot)
  • Protein family: GTP cyclohydrolase IV family (according to Swiss-Prot)
  • Paralogous protein(s):

Extended information on the protein

  • Kinetic information:
  • Domains:
  • Modification:
  • Cofactor(s): activated by a variety of divalent cations PubMed
  • Effectors of protein activity:

Database entries

  • KEGG entry: [3]

Additional information

Expression and regulation

  • Regulation:
  • Regulatory mechanism:
    • Zur: transcription repression in the presence of zinc PubMed
  • 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

Banumathi Sankaran, Shilah A Bonnett, Kinjal Shah, Scott Gabriel, Robert Reddy, Paul Schimmel, Dmitry A Rodionov, Valérie de Crécy-Lagard, John D Helmann, Dirk Iwata-Reuyl, Manal A Swairjo
Zinc-independent folate biosynthesis: genetic, biochemical, and structural investigations reveal new metal dependence for GTP cyclohydrolase IB.
J Bacteriol: 2009, 191(22);6936-49
[PubMed:19767425] [WorldCat.org] [DOI] (I p)

Basma El Yacoubi, Shilah Bonnett, Jessica N Anderson, Manal A Swairjo, Dirk Iwata-Reuyl, Valérie de Crécy-Lagard
Discovery of a new prokaryotic type I GTP cyclohydrolase family.
J Biol Chem: 2006, 281(49);37586-93
[PubMed:17032654] [WorldCat.org] [DOI] (P p)

Ahmed Gaballa, Tao Wang, Rick W Ye, John D Helmann
Functional analysis of the Bacillus subtilis Zur regulon.
J Bacteriol: 2002, 184(23);6508-14
[PubMed:12426338] [WorldCat.org] [DOI] (P p)

A Gaballa, J D Helmann
Identification of a zinc-specific metalloregulatory protein, Zur, controlling zinc transport operons in Bacillus subtilis.
J Bacteriol: 1998, 180(22);5815-21
[PubMed:9811636] [WorldCat.org] [DOI] (P p)