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The Purkinje cell degeneration (pcd) mouse undergoes retinal photoreceptor degeneration and Purkinje cell loss. Nna1 is postulated to be the causal gene for pcd. We show that a BAC containing the Nna1 gene rescues retinal photoreceptor loss and Purkinje cell degeneration, confirming that Nna1 loss-of-function is responsible for these phenotypes. Mutation of the zinc-binding domain within the transgene destroyed its ability to rescue neuronal loss in pcd(5J) homozygous mice. In conclusion, Nna1 is required for survival of retinal photoreceptors and other neuron populations that degenerate in pcd mice. A functional zinc-binding domain is crucial for Nna1 to support neuron survival.
Pubmed ID: 18602413 RIS Download
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An independent, nonprofit organization focused on mammalian genetics research to advance human health. Their mission is to discover the genetic basis for preventing, treating, and curing human disease, and to enable research for the global biomedical community. Jackson Laboratory breeds and manages colonies of mice as resources for other research institutions and laboratories, along with providing software and techniques. Jackson Lab also conducts genetic research and provides educational material for various educational levels.
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