RegulonDB RegulonDB 10.8: Operon Form

ygaVP operon and associated TUs in Escherichia coli K-12 genome

Name: ygaVP
This page displays every known transcription unit of this operon and their known regulation.

Transcription unit       
Gene(s): ygaV, ygaP   Genome Browser M3D Gene expression COLOMBOS
Note(s): The ygaVP operon is activated by TBT (TriBuTyltin) and it is likely autoregulated by YgaV. In the absence of TBT, YgaV acts as a repressor, whereas the presence of TBT abolishes YgaV-mediated repression. TBT is not the natural inducer of the ygaVP operon, since it is a human-made compound Gueune H,2008.
Based on DNA microarray analysis, the mechanism of bacterial inactivation by carvacrol and citral was studied 28644990. Treatment by both compounds caused membrane damage and activated metabolism through the production of nucleotides required for DNA and RNA synthesis and metabolic processes 28644990. A total of 76 and 156 genes demonstrated significant transcriptional differences by carvacrol and citral, respectively. Genes upregulated by carvacrol treatment included the multidrug efflux pump genes acrA and mdtM, genes related to the phage shock response, pspA, pspB, pspC, pspD, pspF, and pspG, and genes whose products are important for biosynthesis of arginine (argC, argG, artJ) and purine nucleotides (purC, purM). Genes upregulated by citral treatment included purH, pyrB, and pyrI. On the other hand, mutations in several differentially expressed genes confirmed the roles of ygaV, yjbO, pspC, sdhA, yejG, and ygaV in mechanisms of inactivation by carvacrol and citral 28644990.
Evidence: [ICWHO] Inferred computationally without human oversight
[ITC] Inferred through co-regulation
[PAGTSBP] Products of adjacent genes in the same biological process
Reference(s): [1] Gueune H., et al., 2008