HisC

• Description: histidinol-phosphate aminotransferase / tyrosine and phenylalanine aminotransferase
  
  

Gene name	hisC
Synonyms	aroJ
Essential	no
Product	histidinol-phosphate aminotransferase / tyrosine and phenylalanine aminotransferase
Function	biosynthesis of aromatic amino acids
Gene expression levels in SubtiExpress: hisC
Metabolic function and regulation of this protein in SubtiPathways: hisC
MW, pI	39 kDa, 5.005
Gene length, protein length	1080 bp, 360 aa
Immediate neighbours	tyrA, trpA
Sequences	Protein DNA DNA_with_flanks
Genetic context
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: BSU22620

Database entries

• BsubCyc: BSU22620

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: L-histidinol phosphate + 2-oxoglutarate = 3-(imidazol-4-yl)-2-oxopropyl phosphate + L-glutamate (according to Swiss-Prot)

• Protein family: bacterial solute-binding protein 3 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

• BsubCyc: BSU22620

• Structure: 1UU0 (the enzyme from E. coli) PubMed

• Swiss prot entry: P17731

• KEGG entry: [3]

• E.C. number: 2.6.1.9

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
  • hisC-tyrA-aroE (according to DBTBS)

• Expression browser: hisC 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:
  • the mRNA is substantially stabilized upon depletion of RNase Y PubMed
  • number of protein molecules per cell (minimal medium with glucose and ammonium): 2715 PubMed
  • number of protein molecules per cell (complex medium with amino acids, without glucose): 2096 PubMed
  • number of protein molecules per cell (minimal medium with glucose and ammonium, exponential phase): 4023 PubMed
  • number of protein molecules per cell (minimal medium with glucose and ammonium, early stationary phase after glucose exhaustion): 2507 PubMed
  • number of protein molecules per cell (minimal medium with glucose and ammonium, late stationary phase after glucose exhaustion): 6242 PubMed

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody: