Mutations and polymorphisms in the pyruvate dehydrogenase E1α gene

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Abstract
We present an update on mutations and polymorphisms in the human X chromosome located pyruvate dehydrogenase E1α gene. A total of 20 different mutations are tabulated. The mutations include deletions, insertions, and point mutations. Certain sequences seem particularly prone to mutation. Most of the mutations are found in exons 10 and 11. Furthermore, four of the mutations are seen in unrelated patients. Little is known about how the mutations affect the structure or function of the pyruvate dehydrogenase complex.