TrpE

• Description: anthranilate synthase (subunit I)
  
  

Gene name	trpE
Synonyms
Essential	no
Product	anthranilate synthase (subunit I)
Function	biosynthesis of tryptophan
Gene expression levels in SubtiExpress: trpE
Interactions involving this protein in SubtInteract: TrpE
Metabolic function and regulation of this protein in SubtiPathways: trpE
MW, pI	57 kDa, 5.246
Gene length, protein length	1545 bp, 515 aa
Immediate neighbours	trpD, aroH
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

TRAP regulon

The gene

Basic information

• Locus tag: BSU22680

Database entries

• BsubCyc: BSU22680

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: Chorismate + L-glutamine = anthranilate + pyruvate + L-glutamate (according to Swiss-Prot)

• Protein family:

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactors:

• Effectors of protein activity: subject to feedback inhibtion by tryptophan PubMed

• Interactions: PabA-TrpE

• Localization:

Database entries

• BsubCyc: BSU22680

• Structure: 1I7Q (from Serratia marcescens, 42% identity, 62% similarity) PubMed

• UniProt: P03963

• KEGG entry: [3]

• E.C. number: 4.1.3.27

Expression and regulation

• Operon:
  • aroF-aroB-aroH-trpE-trpD-trpC-trpF-trpB-trpA-hisC-tyrA-aroE (according to DBTBS)
  • trpE-trpD-trpC-trpF-trpB-trpA-hisC-tyrA-aroE PubMed

• Expression browser: trpE PubMed

• Sigma factor:
  • trpE: SigA PubMed

• Regulation:
  • induction by tryptophan ( TRAP) PubMed

• Regulatory mechanism:
  • TRAP: binding to the mRNA in the presence of tryptophan, this results in transcription termination PubMed

• Additional information:
  • subject to feedback inhibtion by tryptophan PubMed
  • the mRNA is substantially stabilized upon depletion of RNase Y PubMed
  • number of protein molecules per cell (minimal medium with glucose and ammonium): 126 PubMed
  • number of protein molecules per cell (complex medium with amino acids, without glucose): 462 PubMed

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Reviews

Paul Babitzke, Carol S Baker, Tony Romeo
Regulation of translation initiation by RNA binding proteins.
Annu Rev Microbiol: 2009, 63;27-44
[PubMed:19385727] [WorldCat.org] [DOI] (I p)

Paul Gollnick, Paul Babitzke, Alfred Antson, Charles Yanofsky
Complexity in regulation of tryptophan biosynthesis in Bacillus subtilis.
Annu Rev Genet: 2005, 39;47-68
[PubMed:16285852] [WorldCat.org] [DOI] (P p)