DARPA announces PROS program to read proteins directly, targeting health care and national security

Unidentified Speaker, a presenter, said researchers have focused on DNA sequencing for years but that "proteins are where biology actually does the work." The speaker argued current protein-characterization tools "work well in narrow cases" but struggle with long proteins, chemical modifications and sequences that lack known references.

The presenter described a growing challenge as synthetic biology, molecular design and artificial intelligence make it easier to design and build new proteins. "That's why DARPA has launched the protein sequencing or PROS program," the presenter said, announcing the initiative.

According to the presenter, PROS will take a different path from existing approaches. "Instead of adapting sequencing tools and chemistries originally developed for DNA... we're developing integrated microsystems from the ground up to directly read the full chemical diversity of proteins without relying on reference sequences," the presenter said. The program aims to measure proteins’ chemical properties directly rather than map them to known templates.

The presenter said success could "unlock applications across health care, biomanufacturing, and agriculture," and noted national security as another area of concern tied to the inability to read unknown or engineered proteins. The announcement framed PROS as an early but important step toward new molecular-level capabilities.

The presentation did not specify funding amounts, timelines, participating contractors or a schedule for prototype deployment. The speaker closed by saying the agency is "excited to see where this will take us," signaling continued development and future updates from the program.