RibR

• Description: cryptic riboflavin kinase, binds leader (RFN) rib operon mRNA, may have a regulatory role
  
  

Gene name	ribR
Synonyms	ytnK
Essential	no
Product	cryptic riboflavin kinase
Function	regulation of rib operon expression
MW, pI	26 kDa, 9.278
Gene length, protein length	690 bp, 230 aa
Immediate neighbours	ytnL, ytnJ
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: BSU29300

Database entries

• DBTBS entry: [1]

• SubtiList entry: [2]

The protein

Basic information/ Evolution

• Catalyzed reaction/ biological activity:

• Protein family:

• Paralogous protein(s):

Extended information on the protein

• Kinetic information:

• Domains:

• Modification:

• Cofactor(s):

• Effectors of protein activity:

• Interactions:

• Localization:

Database entries

• Structure:

• Swiss prot entry: P94465

• KEGG entry: [3]

• E.C. number:

Expression and regulation

• Operon: ytmI-tcyJ-tcyK-tcyL-tcyM-tcyN-ytmO-ytnI-ytnJ-ribR-ytnL-ytnM

• Sigma factor: SigA

• Regulation:

• Regulatory mechanism:

• Additional information:

Biological materials

• Mutant:

• Expression vector:

• lacZ fusion:

• GFP fusion:

• two-hybrid system:

• Antibody:

References

Yuhei Higashitsuji, Annemarie Angerer, Sabine Berghaus, Birgit Hobl, Matthias Mack
RibR, a possible regulator of the Bacillus subtilis riboflavin biosynthetic operon, in vivo interacts with the 5'-untranslated leader of rib mRNA.
FEMS Microbiol Lett: 2007, 274(1);48-54
[PubMed:17590224] [WorldCat.org] [DOI] (P p)

Irina M Solovieva, Rimma A Kreneva, Lubov Errais Lopes, Daniel A Perumov
The riboflavin kinase encoding gene ribR of Bacillus subtilis is a part of a 10 kb operon, which is negatively regulated by the yrzC gene product.
FEMS Microbiol Lett: 2005, 243(1);51-8
[PubMed:15668000] [WorldCat.org] [DOI] (P p)