How can protein aggregation play a role in inherited disorders such as Phenylketonuria (commonly known as PKU)? Oscar Aubi and colleagues published their findings in the journal Nature Communications where they showed a link between aggregation of a mutant phenylalanine hydroxylase (Pah) variant (R261Q) and the disease Phenylketonuria. Amytracker was used to study the aggregation properties of Pah R261Q.