The first nonsense mutation in alsin results in a homogeneous phenotype of infantile‐onset ascending spastic paralysis with bulbar involvement in two siblings
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Bibliographic record
Abstract
Eight mutations in the ALS2 gene have been described as causing autosomal-recessive juvenile-onset forms of the motor neuron diseases amyotrophic lateral sclerosis, primary lateral sclerosis and hereditary spastic paraplegia. All mutations are small deletions that are predicted to result in a frameshift and premature truncation of the alsin protein. Here we describe a ninth ALS2 mutation, in two siblings affected by infantile-onset ascending spastic paraplegia with bulbar involvement. This mutation is predicted to result in the substitution of an amino acid by a stop codon, and thus is the first nonsense mutation detected in this gene. It is probable that full-length alsin is required for the proper development and/or functioning of upper motor neurons.
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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 | 0.002 | 0.002 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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