TSAGE

Oak Ridge National Laboratory
Oak Ridge National LaboratoryMay 4, 2026

Why It Matters

tSAGE dramatically shortens the development timeline for thermophilic bioprocesses, giving companies a competitive edge in sustainable chemical and fuel production.

Key Takeaways

  • tSAGE enables rapid engineering of thermophilic microorganisms at scale
  • Tool accelerates strain development over tenfold compared to prior methods
  • Supports high‑throughput creation of hundreds of engineered strains quickly
  • Applied to Clostridium thermocellum for cellulosic fuel production
  • Allows firms to use optimal heat‑loving hosts instead of suboptimal ones

Summary

tSAGE is a biotechnological platform that extends Serine recombinase‑Assisted Genome Engineering (SAGE) to organisms thriving at elevated temperatures. By adapting the recombinase system for thermophiles, the tool lets researchers and companies engineer heat‑loving microbes far faster than traditional methods.

The core advantage is speed: tSAGE can increase engineering throughput by more than an order of magnitude, enabling the construction of hundreds of strains in weeks rather than years. Its high‑throughput workflow opens a much larger experimental design space, allowing rapid iteration on metabolic pathways and host optimization.

A flagship example is the application to Clostridium thermocellum, a cellulolytic thermophile targeted for cellulosic fuel and chemical production. Using tSAGE, the team generated dozens of engineered variants to improve biomass conversion, a task that previously would have taken years.

For the biotech industry, tSAGE removes the temperature constraint that forces many firms to rely on suboptimal mesophilic hosts. Companies can now select the most efficient thermophilic chassis, cutting development cycles, lowering costs, and potentially outcompeting conventional bioprocesses.

Original Description

Introducing tSAGE, a powerful biotechnology tool designed to rapidly engineer heat-loving organisms for faster, more efficient bioprocessing. By building on the original SAGE platform, tSAGE enables genome engineering at higher temperatures, unlocking new possibilities for industrial biotechnology.
ORNL is using #BigScience to make a big impact. Learn more: https://www.ornl.gov/bigscience

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