PyrC

• Description: dihydroorotase
  
  

Gene name	pyrC
Synonyms
Essential	no
Product	dihydroorotase
Function	pyrimidine biosynthesis
Metabolic function and regulation of this protein in SubtiPathways: Pyrimidines, Nucleotides (regulation)
MW, pI	46 kDa, 5.427
Gene length, protein length	1284 bp, 428 aa
Immediate neighbours	pyrB, pyrAA
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

Categories containing this gene/protein

biosynthesis/ acquisition of nucleotides

This gene is a member of the following regulons

PyrR regulon

The gene

Basic information

• Locus tag: BSU15500

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity: (S)-dihydroorotate + H₂O = N-carbamoyl-L-aspartate (according to Swiss-Prot)

• Protein family: Type 2 subfamily (according to Swiss-Prot)

• Paralogous protein(s): PucH

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization:

Database entries

• Structure: 3GRI (from Staphylococcus aureus subsp. aureus mw2, 60% identity, 72% similarity)

• UniProt: P25995

• KEGG entry: [3]

• E.C. number: 3.5.2.3

Expression and regulation

• Operon: pyrR-pyrP-pyrB-pyrC-pyrAA-pyrAB-pyrK-pyrD-pyrF-pyrE PubMed

• Sigma factor: SigA PubMed

• Regulation:
  • induced in the absence of uridine nucleotides (PyrR) PubMed

• Regulatory mechanism:
  • PyrR: RNA switch, transcription termination/ antitermination (in the presence of uridine nucleotides: termination, in their absence: antitermination) PubMed

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

R J Turner, Y Lu, R L Switzer
Regulation of the Bacillus subtilis pyrimidine biosynthetic (pyr) gene cluster by an autogenous transcriptional attenuation mechanism.
J Bacteriol: 1994, 176(12);3708-22
[PubMed:8206849] [WorldCat.org] [DOI] (P p)

C L Quinn, B T Stephenson, R L Switzer
Functional organization and nucleotide sequence of the Bacillus subtilis pyrimidine biosynthetic operon.
J Biol Chem: 1991, 266(14);9113-27
[PubMed:1709162] [WorldCat.org] (P p)