S. Khelaifia

Dual RNase and β-lactamase activity of a single enzyme encoded in most Archaea

The paper identifies dual RNase and β-lactamase activity in an archaeal enzyme, challenging previous annotations and highlighting functional specialization over time.

Antioxidants maintain Butyrate production by Human Gut Clostridia in the presence of Oxygen

The paper shows that antioxidants enable human gut Clostridia to produce butyrate aerobically, revealing an unexpected metabolic adaptation to oxidative stress.