RibU

• Description: riboflavin transporter
  
  

Gene name	ribU
Synonyms	ypaA
Essential	no
Product	riboflavin transporter
Function	riboflavin uptake
Metabolic function and regulation of this protein in SubtiPathways: Riboflavin / FAD
MW, pI	20 kDa, 10.12
Gene length, protein length	570 bp, 190 aa
Immediate neighbours	fer, ypzE
Get the DNA and protein sequences (Barbe et al., 2009)
Genetic context This image was kindly provided by SubtiList

Categories containing this gene/protein

transporters/ other, biosynthesis of cofactors, membrane proteins

This gene is a member of the following regulons

FMN-box

The gene

Basic information

• Locus tag: BSU23050

Expression

Database entries

• DBTBS entry: no entry

• SubtiList entry: [1]

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: membrane

Database entries

• Structure: 3P5N (RibU from Staphylococcus aureus)

• UniProt: P50726

• KEGG entry: [2]

• E.C. number:

Expression and regulation

• Operon: ribU PubMed
  • there is a promoter directly in front of ribU PubMed

• Sigma factor:

• Regulation: expressed in the absence of FMN (FMN-box) PubMed

• Regulatory mechanism: FMN-box: riboswitch, controls access of the ribosome to the Shine-Dalgarno sequence PubMed

• Additional information:
  • 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

Reviews

Thomas Eitinger, Dmitry A Rodionov, Mathias Grote, Erwin Schneider
Canonical and ECF-type ATP-binding cassette importers in prokaryotes: diversity in modular organization and cellular functions.
FEMS Microbiol Rev: 2011, 35(1);3-67
[PubMed:20497229] [WorldCat.org] [DOI] (I p)

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

Peng Zhang, Jiawei Wang, Yigong Shi
Structure and mechanism of the S component of a bacterial ECF transporter.
Nature: 2010, 468(7324);717-20
[PubMed:20972419] [WorldCat.org] [DOI] (I p)

Christian Vogl, Simon Grill, Oliver Schilling, Jörg Stülke, Matthias Mack, Jürgen Stolz
Characterization of riboflavin (vitamin B2) transport proteins from Bacillus subtilis and Corynebacterium glutamicum.
J Bacteriol: 2007, 189(20);7367-75
[PubMed:17693491] [WorldCat.org] [DOI] (P p)

Wade C Winkler, Smadar Cohen-Chalamish, Ronald R Breaker
An mRNA structure that controls gene expression by binding FMN.
Proc Natl Acad Sci U S A: 2002, 99(25);15908-13
[PubMed:12456892] [WorldCat.org] [DOI] (P p)