Video S1. Ras/LET-60(G75D) substitution is predicted to perturb interactions between Ras/LET-60 and SOS-1. Video shows rotated views of predicted interactions between KRas(G13E G75D) and SOS based on the crystal structure of a human ternary KRas(G13D)-SOS complex (PDB: 7KFZ). See Figure S7 for annotations.