Symptoms
A common symptom of PolyQ diseases is characterized by a progressive degeneration of nerve cells usually affecting people later in life. Although these diseases share the same repeated codon (CAG) and some symptoms, the repeats for the different polyglutamine diseases occur on different chromosomes.
The non-PolyQ diseases do not share any specific symptoms and are unlike the PolyQ diseases.
Read more about this topic: Trinucleotide Repeat Disorders
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