Autism risk genes are evolutionarily ancient and maintain a unique feature landscape that echoes their function.
Emily L Casanova, Andrew E Switala, Srini Dandamudi and 5 others
PMID 31025836WHAT IT FOUND
Autism risk genes analysed here are long, ancient, and highly connected.
The paper reports gene database features only, not patient outcomes, and gives no guidance for physical, occupational, or speech therapy.
Key findings
01Compared with whole-genome control genes, autism risk genes were longer and produced more transcript variants.
02Autism risk genes had more conserved noncoding elements and more transposable elements inside their introns than whole-genome control genes.
03Autism risk genes were evolutionarily older and their protein products interacted with more other proteins than control genes matched for size or variation tolerance.
STILL TO COME
How it was doneWhat they found
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What it does not show
The study analysed gene databases, not patients, so it cannot show how any gene affects behaviour, diagnosis, or therapy response. Most autism genes were major-effect or syndrome-associated genes, so the results may not apply to common nonsyndromic autism risk genes. The gene groups overlapped heavily, so average differences do not mean every gene in a group has the same feature. The paper reports computational comparisons, not causal evidence, clinical outcomes, or treatment results.
Declared interests
The authors declared no biomedical financial interests or potential conflicts of interest.
The easy way to misread this
Do not read these gene features as evidence that autism risk genes cause clinical deficits that therapists can treat. The study analysed gene databases, not patients, interventions, or therapy outcomes.