Cross-species atlas of bacterial RNA 3' ends reveals termination mechanistic signatures and evolutionary patterns.

Cross-species analysis of bacterial transcript 3' ends uncovers diverse termination signatures and species-specific mechanisms in 32 human pathogens.

• Why it matters: Understanding bacterial transcript termination is crucial for insights into gene regulation, but large-scale, comparative data are lacking. This work addresses that gap by providing extensive, condition-dependent 3' end data across multiple species.
• What they did: Researchers repurposed RNAtag-seq data from 32 bacterial pathogens grown under 10-12 conditions to create the Bacterminome atlas, analyzing sequence elements near 3' termini and identifying known and novel termination signatures.
• The result: The atlas reveals that orthologous genes often use different termination mechanisms across species, with some conservation of condition-dependent 3' termini, supporting their regulatory role, and is accessible via a user-friendly web platform.