Molecular analysis of cell lines from patients with mucolipidosis II and mucolipidosis III
Bibliographic record
Abstract
Mucolipidosis II and III are autosomal recessive disorders due to mutations in the GNPTAB and GNPTG genes encoding the alphabeta- and gamma-subunits of the GlcNAc-1-phosphotransferase, respectively. This protein has a subunit structure of alpha(2)beta(2)gamma(2) and initiates the first step of tagging lysosomal enzymes with mannose-6-phosphate (M6P). In the present study, we screened four MLII and three MLIII cell lines for mutations in GNPTAB and GNPTG. Nine novel mutations in GNPTAB and two previously reported mutations in GNPTAB and GNPTG were identified. By using anti-peptide antibodies against the alpha- and beta-subunits, we show that mutations in the gamma-subunit affected the assembly and intracellular distribution of the alpha- and beta-subunits. Furthermore, the biochemical phenotypes of MLII and MLIII fibroblasts can be corrected by transfection with wild-type cDNA expression constructs encoding the alpha/beta- and gamma-subunits of GlcNAc-1-phosphotransferase, respectively.
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How this classification was reachedexpand
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) | 0.001 | 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 | 0.000 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".