No abstract

In the present study we report on the identification of ten novel mutations in the phenylalanine hydroxylase (PAH) gene of Brazilian patients with phenylketonuria (PKU): IVS5‐54A>G, IVS6+17G>T, E205A, F240S, K274E, I318T, L321L, C357G, IVS11+17G>A and S411X. These mutations were detected during the characterization of the PAH genotypes of 115 patients with PKU from the southeast region of Brazil. The results obtained confirm the high heterogeneity of the PAH gene and provide information about the distribution of PKU mutations in the Brazilian population. © 2001 Wiley‐Liss, Inc.