A novel hypomorphic <i>Looptail</i> allele at the planar cell polarity <i>Vangl2</i> gene
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Bibliographic record
Abstract
Vangl2 forms part of the planar cell polarity signalling pathway and is the gene defective in the Looptail (Lp) mouse mutant. Two previously described alleles, Lp and Lp(m1Jus) , segregate in a semi-dominant fashion, with heterozygotes displaying the looped-tail appearance, while homozygotes show the neural tube defect called craniorachischisis. Here, we report a novel experimentally induced allele, Lp(m2Jus) , that carries a missense mutation, R259L, in Vangl2. This mutation was specific to the Lp phenotype and absent from both parental strains and 28 other inbred strains. Notably, this mutation segregates in a recessive manner with all heterozygotes appearing normal and 47% of homozygotes showing a looped-tail. Homozygous Lp(m2Jus) embryos showed spina bifida in 12%. Lp(m2Jus) genetically interacts with Lp with 77% of compound heterozygotes displaying craniorachischisis. Vangl2(R259L) behaved like the wild-type allele in overexpression and morpholino knockdown/rescue assays in zebrafish embryos. These data suggest that Lp(m2Jus) represents a new hypomorphic allele of Lp.
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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