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: Phe, Tyr, Trp
MW, pI	57 kDa, 5.246
Gene length, protein length	1545 bp, 515 aa
Immediate neighbours	trpD, aroH
Sequences	Protein DNA Advanced_DNA
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

• 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 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

• 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

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

The trpE RNA switch

Kristine D Potter, Natalie M Merlino, Timothy Jacobs, Paul Gollnick
TRAP binding to the Bacillus subtilis trp leader region RNA causes efficient transcription termination at a weak intrinsic terminator.
Nucleic Acids Res: 2011, 39(6);2092-102
[PubMed:21097886] [WorldCat.org] [DOI] (I p)

Alexander V Yakhnin, Paul Babitzke
Mechanism of NusG-stimulated pausing, hairpin-dependent pause site selection and intrinsic termination at overlapping pause and termination sites in the Bacillus subtilis trp leader.
Mol Microbiol: 2010, 76(3);690-705
[PubMed:20384694] [WorldCat.org] [DOI] (I p)

Adam P McGraw, Ali Mokdad, François Major, Philip C Bevilacqua, Paul Babitzke
Molecular basis of TRAP-5'SL RNA interaction in the Bacillus subtilis trp operon transcription attenuation mechanism.
RNA: 2009, 15(1);55-66
[PubMed:19033375] [WorldCat.org] [DOI] (I p)

Adam P McGraw, Philip C Bevilacqua, Paul Babitzke
TRAP-5' stem loop interaction increases the efficiency of transcription termination in the Bacillus subtilis trpEDCFBA operon leader region.
RNA: 2007, 13(11);2020-33
[PubMed:17881743] [WorldCat.org] [DOI] (P 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)

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)

Paul Babitzke, Janell Schaak, Alexander V Yakhnin, Philip C Bevilacqua
Role of RNA structure in transcription attenuation in Bacillus subtilis: the trpEDCFBA operon as a model system.
Methods Enzymol: 2003, 371;392-404
[PubMed:14712717] [WorldCat.org] [DOI] (P p)

Janell E Schaak, Helen Yakhnin, Philip C Bevilacqua, Paul Babitzke
A Mg2+-dependent RNA tertiary structure forms in the Bacillus subtilis trp operon leader transcript and appears to interfere with trpE translation control by inhibiting TRAP binding.
J Mol Biol: 2003, 332(3);555-74
[PubMed:12963367] [WorldCat.org] [DOI] (P p)

H Yakhnin, J E Babiarz, A V Yakhnin, P Babitzke
Expression of the Bacillus subtilis trpEDCFBA operon is influenced by translational coupling and Rho termination factor.
J Bacteriol: 2001, 183(20);5918-26
[PubMed:11566991] [WorldCat.org] [DOI] (P p)

H Du, A V Yakhnin, S Dharmaraj, P Babitzke
trp RNA-binding attenuation protein-5' stem-loop RNA interaction is required for proper transcription attenuation control of the Bacillus subtilis trpEDCFBA operon.
J Bacteriol: 2000, 182(7);1819-27
[PubMed:10714985] [WorldCat.org] [DOI] (P p)

E Merino, P Babitzke, C Yanofsky
trp RNA-binding attenuation protein (TRAP)-trp leader RNA interactions mediate translational as well as transcriptional regulation of the Bacillus subtilis trp operon.
J Bacteriol: 1995, 177(22);6362-70
[PubMed:7592410] [WorldCat.org] [DOI] (P p)

P Babitzke, J T Stults, S J Shire, C Yanofsky
TRAP, the trp RNA-binding attenuation protein of Bacillus subtilis, is a multisubunit complex that appears to recognize G/UAG repeats in the trpEDCFBA and trpG transcripts.
J Biol Chem: 1994, 269(24);16597-604
[PubMed:7515880] [WorldCat.org] (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, C Yanofsky
Reconstitution of Bacillus subtilis trp attenuation in vitro with TRAP, the trp RNA-binding attenuation protein.
Proc Natl Acad Sci U S A: 1993, 90(1);133-7
[PubMed:7678334] [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)

M I Kuroda, D Henner, C Yanofsky
cis-acting sites in the transcript of the Bacillus subtilis trp operon regulate expression of the operon.
J Bacteriol: 1988, 170(7);3080-8
[PubMed:3133360] [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)

Other original publications

Lehnik-Habrink M, Schaffer M, Mäder U, Diethmaier C, Herzberg C, Stülke J  
RNA processing in Bacillus subtilis: identification of targets of the essential RNase Y. 
Mol Microbiol. 2011 81(6): 1459-1473. 
PubMed:21815947