Uncovering differential tolerance to deletions versus substitutions with a protein language model.

Deep mutational scanning (DMS) experiments have been successfully leveraged to understand genotype to phenotype mapping. However, the overwhelming majority of DMS have focused on amino acid substitutions. Thus, it remains unclear how indels differentially shape the fitness landscape relative to substitutions.

Engineering synthetic signaling receptors to enable erythropoietin-free erythropoiesis.

Blood transfusion plays a vital role in modern medicine, but frequent shortages occur. Ex vivo manufacturing of red blood cells (RBCs) from universal donor cells offers a potential solution, yet the high cost of recombinant cytokines remains a barrier. Erythropoietin (EPO) signaling is crucial for RBC development, and EPO is among the most expensive media components.