News Summary

• New tool, SynthID Bio, hides a signature in amino acid sequence or predicted 3D structure of a protein.
• Google DeepMind says a test can find the signature in the physical protein as well as in the digital design.
• The tool works inside ProteinMPNN, a popular protein design tool from the Baker Lab.
• It uses a key, similar to a cryptographic key, to suggest each next amino acid.
• To detect the mark, software scans the whole sequence with the key.
• It measures how often the suggested amino acids appear.