Definition of "neurexin" [neurexin]

• Any of a family of proteins found in nerve tissue (noun)

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• "[S] cientists at the University of North Carolina at Chapel Hill School of Medicine have shown that a protein called neurexin is required for. .nerve cell connections to form and function correctly."
• "This was a speech on autism, and Palin's critics have pounced on the fact that a recent study of Drosophila fruit flies showed that a protein called neurexin is essential for proper neurological function -- a discovery with clear implications for autism research."
• "Now scientists at the University of North Carolina at Chapel Hill School of Medicine have shown that a protein called neurexin is required for these nerve cell connections to form and function correctly."