Background: Missense mutations in the SHANK3 gene have been detected in autism patients. Results: A mutation in the conserved SPN region of Shank3 improves ligand binding to the ankyrin repeats.
Conclusion:The SPN domain regulates accessibility of the ankyrin repeats through an intramolecular interaction. Significance: Autism-associated mutations of Shank3 result in gain-of-function with respect to specific interaction partners.
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