TrpE

• Description: anthranilate synthase (subunit I)
  
  

Gene name	trpE
Synonyms
Essential	no
Product	anthranilate synthase (subunit I)
Function	biosynthesis of tryptophan
Metabolic function and regulation of this protein in SubtiPathways: Phe, Tyr, Trp
MW, pI	57 kDa, 5.246
Gene length, protein length	1545 bp, 515 aa
Immediate neighbours	trpD, aroH
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

The gene

Basic information

• Locus tag: BSU22680

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

Categories containing this gene/protein

biosynthesis/ acquisition of amino acids

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:

• Cofactor(s):

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

• Interactions: PabA-TrpE

• Localization:

Database entries

• 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

• 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

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody: