David Sychantha

Denuded peptidoglycan oligosaccharides enable the biochemical investigation of bacterial cell wall recognition, modification, and degradation

This paper describes an enzymatic method to generate defined peptidoglycan oligosaccharides for studying bacterial cell wall recognition and enzyme activity.

A ubiquitous Streptomyces biosynthetic megacluster encodes an arsenal of synergistic biotin-targeting antibiotics

The paper identifies a conserved Streptomyces biosynthetic megacluster producing biotin-targeting antibiotics, effective against multidrug-resistant E. coli.

Rapidly evolving orphan immunity genes protect human gut bacteria from intoxication by the type VI secretion system

The paper identifies rapidly evolving orphan immunity genes in human gut bacteria that protect against T6SS intoxication through high-affinity protein interactions and shows their evolutionary dynamics across microbiomes.

The histidine kinase VraS orchestrates the cell-wall stress response in Staphylococcus aureus via its direct interaction with glycopeptides and β-lactams

This study identifies VraS as a direct receptor for vancomycin and ampicillin, revealing its role in activating the cell-wall stress response in Staphylococcus aureus and providing a target for combating antibiotic resistance.