Rare POLR3B Mutation Again Linked to Early-onset CMT Type 1
In rare cases, de novo or non-inherited mutations in one copy of the POLR3B gene can cause an early-onset demyelinating form of Charcot-Marie-Tooth disease (CMT), according to a study from Japan involving more than 800 CMT patients. While mutations in both POLR3B gene copies have been shown to cause a rare neurodevelopmental…