When prion proteins go wrong, they can do serious damage, but little is known about their normal function, despite their ubiquitous expression in the brain. A new report in this issue suggests a critical role for prions in olfactory discrimination.
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Wilson, D., Nixon, R. Sniffing out a function for prion proteins. Nat Neurosci 12, 7–8 (2009). https://doi.org/10.1038/nn0109-7
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DOI: https://doi.org/10.1038/nn0109-7
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