Autism Mutations Rewire Protein Interaction Networks to Drive Neurodevelopmental Pathology
Original title: Autism mutations rewire protein interaction networks to drive neurodevelopmental pathology
Researchers used affinity purification-mass spectrometry to map protein-protein interactions for 100 high-confidence autism risk proteins. The network included 1,881 total interactions and 1,074 unique interactors.
The team also tested 54 patient-derived damaging missense mutations across 30 autism risk proteins and found 253 significantly altered interactions. Different mutations often converged on the same protein complexes and biological systems.
Selected findings were followed up with AlphaFold-guided structural analysis and experiments in neural progenitor cells, Xenopus, and human forebrain organoids.
Why we referenced it
This study moves beyond lists of autism-associated genes and asks how the proteins encoded by those genes interact. It provides a mechanistic framework for understanding how genetically different variants may converge on shared molecular systems during neurodevelopment.
Important context
The study focuses on a selected set of high-confidence, large-effect autism risk genes. Much of the high-throughput mapping was performed in HEK293T cells, although selected findings were tested in neural and developmental model systems. These results do not establish a single cause of autism, a diagnostic test, or a clinical treatment.