Types | DnaRegion
|
Roles | promoter
Regulatory
|
Sequences | BBa_J100130_sequence (Version 1)
|
Description
Bacterial cells rely on Zinc as a trace element, however a large Zinc presence can be detrimental if it forms specific compounds within the cell. Bacterial cells have to regulate the amount of Zn2+. To maintain zinc homeostasis, bacteria can use Zur in order to keep the appropriate levels of Zn2+, since the Zur promoter represses the transcription of Zn2+. The Zurr box acts as a repressor for Zn2+ uptake and houses several promoter regions
(Don Liang-Huang 2008: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2490734/)
Notes
In order to induce the promoter, .5 micromoles of zinc sulfate must be added to the Zurr box.
Source
This source comes from the genomic sequence of bacteria, namely Xanthomonas campestris.