P. Courtin

The paper identifies D-Ala-LTAs as symbiotic cues that support Drosophila juvenile growth by promoting intestinal peptidase expression through the action of DltE.

This study identifies CwlA as a substrate of the STK PrkC in C. difficile, showing that phosphorylation regulates its export and modulates cell division by controlling peptidoglycan hydrolysis.

The paper shows that D-alanylation of teichoic acids in Bacillus thuringiensis and Lactobacillus plantarum reduces immune sensing of peptidoglycan in Drosophila by limiting its release and activation of the IMD-NF-κB pathway.

This study identifies the pbpX2-dlt operon in Lactobacillus plantarum as critical for D-alanine esterification of teichoic acids, which enhances intestinal peptidase expression and promotes Drosophila growth under chronic undernutrition.