Difference between revisions of "Part:BBa K4634003"

Revision as of 04:35, 4 October 2023

pPepT Hypoxia-Induced Reporter System

pPepT, which is induced by hypoxia, is regulated by transcriptional activator: fumarate and nitrate reduction regulatory protein (FNR).[1] Under anaerobic conditions, FNR associates with [4Fe-4S]2+ clusters to form transcriptionally active homodimers, the dimer can bind DNA site-specifically and regulate transcription from target promoters. However, when the clusters are disrupted in the presence of oxygen, the FNR dimer dissociates into nonDNA-binding monomers. [2, 3] In order to verify the anaerobic induction function of pPepT, we used pPepT and mcherry to form a reporter system. Fluorescence intensity was verified separately in normoxic and anaerobic environments. At the same time, a reporting system under the control of T7 promoter was also set up as a control group. The results show that for the pPepT experimental group, induction under anaerobic conditions can indeed increase the intensity of the reporter fluorescence.

Sequence and Features