BoltzGen nanobody discovery against a lymphocyte surface receptor, 2000 designs narrowed to a validated panel of 12
A single BoltzGen run took a receptor target from 2000 raw designs to a validated panel of 12 nanobodies, scored by two independent structure predictors.
We used BoltzGen to design VHH nanobodies against a lymphocyte surface receptor, steering them toward a membrane distal surface so they land away from the receptor's functional contact face and do not interfere with native signaling.
The run generated 2000 designs. The best scored ipTM 0.974, and one recurring epitope emerged across 32 independent designs. We narrowed to a final panel of 12 and confirmed them with AlphaFold2 and Boltz-2, two structure predictors independent of the design step; ten of the twelve held up strongly under both. The lead nanobodies sit 11 to 18 angstroms clear of the functional face, so they bind the receptor without blocking it.