TrpF

• Description: phosphoribosylanthranilate isomerase
  
  

Gene name	trpF
Synonyms
Essential	no
Product	phosphoribosylanthranilate isomerase
Function	biosynthesis of tryptophan
Metabolic function and regulation of this protein in SubtiPathways: Phe, Tyr, Trp
MW, pI	23 kDa, 8.371
Gene length, protein length	645 bp, 215 aa
Immediate neighbours	trpB, trpC
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: BSU22650

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: N-(5-phospho-beta-D-ribosyl)anthranilate = 1-(2-carboxyphenylamino)-1-deoxy-D-ribulose 5-phosphate (according to Swiss-Prot)

• Protein family: TCR/tet family (according to Swiss-Prot)

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization:

Database entries

• Structure:

• UniProt: P20167

• KEGG entry: [3]

• E.C. number: 5.3.1.24

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: 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:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

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)