Evidence that the Mouse Osteocalcin-Related Gene Does Not Encode Nephrocalcin
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Bibliographic record
Abstract
BACKGROUND/AIMS: The osteocalcin-related gene (ORG) is a mouse-specific member of the osteocalcin gene cluster predicted to encode a gamma-carboxyglutamic acid-rich protein. ORG mRNA has been predicted to encode nephrocalcin and shown to be expressed in the kidney where it could serve as an important crystallization inhibitor. To determine whether ORG encodes mouse nephrocalcin, we investigated its in vivo and in vitro expression. METHODS: We expressed fluorescent fusion ORG proteins in kidney cell lines and generated transgenic mice expressing enhanced green fluorescent protein under the control of the ORG promoter. RESULTS: ORG mRNA was shown to be expressed in mouse kidneys and in a variety of other tissues. Fusion constructs transfected in opossum kidney cells demonstrated integrity of the open reading frame with the presence of a protein of the expected molecular weight. However, kidneys from transgenic mice carrying the enhanced green fluorescent protein gene under the control of the ORG promoter (5.8 kb fragment) demonstrated no expression of the transgene in kidneys or other tissues. CONCLUSION: We conclude that ORG, the third gene of the mouse osteocalcin gene cluster is silent and unlikely to play a major role in mouse renal physiology.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 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