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Molecular assay reagents intended to identify mutations in the periaxin (PRX) gene, located at chromosome 19q13.1-q13.2, which encodes for the protein periaxin, required for the maintenance of myelin; research suggests that it helps to stabilize the myelin. This genetic mutation has been identified in patients with demyelinating peripheral neuropathy (demyelinating Charcot-Marie-Tooth disease type 4) and with Dejerine-Sottas neuropathy.
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