Shanghai Yao Yuan Biotechnology Ltd., also known as Drug Farm, is advancing a portfolio of immune-modulating therapies for various indications including hepatitis B virus, hepatocellular cancer and a relatively new rare genetic disease called ROSAH, an acronym for retinal dystrophy, optic nerve edema, splenomegaly, anhidrosis, and headache.

The Alphafold machine learning system for predicting a protein’s structure from its amino acid sequence has been adapted to make it possible to design de novo proteins that fold in a particular way and bind to prespecified target proteins. The sister system, called Alphadesign, works by generating random strings of amino acids, using Alphafold to predict their structure, and then iteratively optimizing the design.