The protein levels of FPN were slightly reduced in SCD mice (Figure 3B,C, FPN/β-actin, 0.87 ± 0.07 units in SCD vs. 1.09 ± 0.11 units in control, p = 0.1295), but the differences were not statistically significant. The gene discussed is ACTB; the disease is Schnyder corneal dystrophy.