A novel acid α‐glucosidase mutation identified in a Pakistani family with glycogen storage disease type II

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Abstract
A novel mutation, C118t, in exon 2 of the acid α-glucosidase gene has been found in an infant with glycogen storage disease type II. This mutation is predicted to result in protein truncation. The phenotype was that of the severe infantile form of the disorder with lack of motor development, but with eye regard, social smile and vocalization. The parents were heterozygous for C118T and belong to an Islamic community opposed to termination of pregnancy. As the C118T mutation results in the loss of one of two AvaI sites present in an informative PCR product, reliable premarriage carrier detection became possible and was acceptable to the members of this extended family.