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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Severe neuropathy with leaky connexin32 hemichannels.

X-linked Charcot-Marie-Tooth disease is one of a set of diseases caused by mutations in gap junction proteins called connexins. We identified a connexin32 missense mutation (F235C) in a girl with unusually severe neuropathy. The localization and trafficking of the mutant protein in cell culture was normal, but electrophysiological studies showed that the mutation caused abnormal hemichannel opening, with excessive permeability of the plasma membrane and decreased cell survival. Abnormal leakiness of connexin hemichannels is likely a mechanism of cellular toxicity in this and perhaps other diseases caused by connexin mutations.[1]


  1. Severe neuropathy with leaky connexin32 hemichannels. Liang, G.S., de Miguel, M., Gómez-Hernández, J.M., Glass, J.D., Scherer, S.S., Mintz, M., Barrio, L.C., Fischbeck, K.H. Ann. Neurol. (2005) [Pubmed]
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