TrpE

• Description: anthranilate synthase (subunit I)
  
  

Gene name	trpE
Synonyms
Essential	no
Product	anthranilate synthase (subunit I)
Function	biosynthesis of tryptophan
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]

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 inhibition by tryptophan PubMed

• Interactions: PabA-TrpE

• Localization:

Database entries

• Structure:

• Swiss prot entry: P03963

• KEGG entry: [3]

• E.C. number: 4.1.3.27

Expression and regulation

• Operon: trpE-trpD-trpC-trpF-trpB-trpA PubMed

• Sigma factor: 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 inhibition by tryptophan PubMed

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

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)

Gintaras Deikus, Paul Babitzke, David H Bechhofer
Recycling of a regulatory protein by degradation of the RNA to which it binds.
Proc Natl Acad Sci U S A: 2004, 101(9);2747-51
[PubMed:14976255] [WorldCat.org] [DOI] (P p)

J Otridge, P Gollnick
MtrB from Bacillus subtilis binds specifically to trp leader RNA in a tryptophan-dependent manner.
Proc Natl Acad Sci U S A: 1993, 90(1);128-32
[PubMed:8419914] [WorldCat.org] [DOI] (P p)

P Babitzke, P Gollnick, C Yanofsky
The mtrAB operon of Bacillus subtilis encodes GTP cyclohydrolase I (MtrA), an enzyme involved in folic acid biosynthesis, and MtrB, a regulator of tryptophan biosynthesis.
J Bacteriol: 1992, 174(7);2059-64
[PubMed:1551827] [WorldCat.org] [DOI] (P p)

H Shimotsu, M I Kuroda, C Yanofsky, D J Henner
Novel form of transcription attenuation regulates expression the Bacillus subtilis tryptophan operon.
J Bacteriol: 1986, 166(2);461-71
[PubMed:2422155] [WorldCat.org] [DOI] (P p)

D J Henner, L Band, H Shimotsu
Nucleotide sequence of the Bacillus subtilis tryptophan operon.
Gene: 1985, 34(2-3);169-77
[PubMed:3924737] [WorldCat.org] [DOI] (P p)

H Shimotsu, D J Henner
Characterization of the Bacillus subtilis tryptophan promoter region.
Proc Natl Acad Sci U S A: 1984, 81(20);6315-9
[PubMed:6436812] [WorldCat.org] [DOI] (P p)

1. Author1, Author2 & Author3 (year) Title Journal volume: page-page. PubMed