The highly variable methylome of the gastric cancer bacterium Helicobacter pylori

In a new publication in the renowned journal “Communications Biology”, a team of scientists from the Max von Pettenkofer Institute led by Prof. Dr. Sebastian Suerbaum and Dr. Florent Ailloud has investigated the evolution and diversity of the methylome of Helicobacter pylori. Of all pathogenic bacteria, H. pylori is the one with the largest number of DNA-methylating enzymes (methyltransferases). These MTases methylate the genome of the carcinogenic bacterium at many thousands of positions. Each H. pylori strain has a unique combination of MTases that allow the bacterium to vary its methylome individually.

Link to the publication (Open Access):

https://rdcu.be/djrcv

The complex ecology of the gut microbiome

In a recent publication (first author Anna S. Weiss), a team led by Prof. Dr Bärbel Stecher from the Max von Pettenkofer Institute was able to show, using a synthetic bacterial community in the intestines of mice, that the ecology of the intestinal microbiome is influenced by both environmental factors (e.g. diet) and host determinants. The research results were published in the renowned journal “Nature Communications”.