Candidate genes and biological processes in de novo CNVs from autistic individuals
Why this work is in the frame
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Bibliographic record
Abstract
There is growing evidence that common diseases might not result from a few common variants, but rather from many rare variants across many genes/loci. This is likely to be particularly true for disorders such as autism where the fecundity of affected individuals is exceptionally low (~5%) and thus disease-predisposing alleles are unlikely to be transmitted. Since these different disease-contributing genes give rise to a shared disease phenotype, it is likely that their protein products contribute to shared biological processes, such as particular protein pathways or cellular networks. Identifying the common network(s) among these genes would allow the screening of a small subset of genes for early diagnosis and these networks could present multiple points for early intervention. We examined two independent sets of de novo copy number variants (CNVs) identified in individuals with autism spectrum disorders (ASDs): (i) a large discovery set of 73 CNVs identified in 54 patients (median size 118Kb) from the Autism Genome Project (AGP) consortium [ 1 ]; and (ii) a small validation/replication set of 28 CNVs identified in 24 patients (median size 3Mb) [ 2 ]. To identify unexpected shared features among genes overlapped by these CNVs, we exploited phenotype data arising from the disruption of ~6000 human orthologues in mouse. We infer that genes are likely to act in the same biological process if, when disrupted in mouse, they exhibit comparable phenotypes. Thus, we aim to identify significantly over-represented mouse phenotypes among sets of human genes of interest (e.g. genes overlapped by autism-associated CNVs) [ 3 ]. Among genes overlapped by the AGP CNVs, significant enrichments of specific mouse phenotypes were discovered (FDR<5%), most of which were either replicated (FDR<5%) or validated ( p <0.05) in the Marshall set, including: (i) A significant enrichment of genes associated with four abnormal synaptic transmission phenotypes; (ii) A significant enrichment of genes associated with >10 behavioural phenotypes and five hearing phenotypes that are only found within duplicated CNVs. Many of these duplication-specific phenotypic associations are readily comparable to ASD symptoms, such as abnormal motor learning (60-80% of individuals with ASD exhibit impaired coordination), non-convulsive seizures (~1/3 of individuals with ASD suffer seizures, commonly non-convulsive) and sensorineural hearing impairment (25-40% individuals with ASD have hearing impairments). These enrichments identify >100 largely novel candidate genes and provide causal hypothesis for between 19-83% of patients in each cohort.
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it