Related Experiment Videos
A new cyclopyrophosphate as a bacterial antistressor?
D Ostrovsky1, I Shipanova, L Sibeldina
1Bakh Institute of Biochemistry, USSR Academy of Sciences, Moscow.
FEBS Letters
|February 24, 1992
Summary
A novel bacterial antistressor, 2-methyl-butan-1,2,3,4,-tetraol-2,4-cyclopyrophosphate, was identified in Brevibacterium ammoniagenes. This compound accumulates under oxidative stress, suggesting its role in bacterial stress response.
Area of Science:
- Microbiology
- Biochemistry
Background:
- Bacteria produce unusual compounds under oxidative stress.
- A specific 31P NMR signal at -15 ppm indicates a unique pyrophosphate substance.
Purpose of the Study:
- To identify the unusual glycosyl pyrophosphate detected in bacteria under oxidative stress.
- To investigate the role of this compound as a potential bacterial antistressor.
Main Methods:
- Utilized 31P NMR spectroscopy to detect and characterize the compound.
- Isolated and identified the chemical structure of the substance from Brevibacterium ammoniagenes.
Main Results:
- Identified the compound as 2-methyl-butan-1,2,3,4,-tetraol-2,4-cyclopyrophosphate.
- Observed accumulation of this compound up to 50 mM in Brevibacterium ammoniagenes under specific conditions.
- Detected the compound in various bacteria subjected to oxidative stress.
Conclusions:
- 2-methyl-butan-1,2,3,4,-tetraol-2,4-cyclopyrophosphate is a significant bacterial metabolite.
- This cyclopyrophosphate is proposed as the long-sought bacterial antistressor, crucial for survival under stress.