Related Experiment Video
Updated: Apr 15, 2026

Using Microtiter Dish Radiolabeling for Multiple In Vivo Measurements Of Escherichia coli pppGpp Followed by Thin Layer Chromatography
Published on: June 4, 2019
Recent functional insights into the role of (p)ppGpp in bacterial physiology
Vasili Hauryliuk1, Gemma C Atkinson1, Katsuhiko S Murakami2
11] Department of Molecular Biology and Laboratory for Molecular Infection Medicine Sweden (MIMS), Umeå University, Building 6K and 6L, University Hospital Area, SE-901 87 Umeå, Sweden. [2] Institute of Technology, University of Tartu, Nooruse 1, Tartu 50411, Estonia.
Abstract:
The alarmones guanosine tetraphosphate and guanosine pentaphosphate (collectively referred to as (p)ppGpp) are involved in regulating growth and several different stress responses in bacteria. In recent years, substantial progress has been made in our understanding of the molecular mechanisms of (p)ppGpp metabolism and (p)ppGpp-mediated regulation. In this Review, we summarize these recent insights, with a focus on the molecular mechanisms governing the activity of the RelA/SpoT homologue (RSH) proteins, which are key players that regulate the cellular levels of (p)ppGpp. We also discuss the structural basis of transcriptional regulation by (p)ppGpp and the role of (p)ppGpp in GTP metabolism and in the emergence of bacterial persisters.
More Related Videos
Related Concept Videos
Stringent Response in E. coli
Global Regulatory Systems
Coordination of Gene Expression Processes in Bacteria
Other Stress Responses in Bacteria
Prokaryotic Transcriptional Activators and Repressors
Transcription of prokaryotic...
Prokaryotic Transcriptional Activators and Repressors

