Phosphopeptides Derived from Hen Egg Yolk Phosvitin: Effect of Molecular Size on the Calcium-binding Properties
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Bibliographic record
Abstract
Two different phosphopeptide (PPP) fragments derived from partially dephosphorylated hen egg yolk phosvitin were prepared by tryptic digestion, and their Ca2+ binding property compared with that of commercial casein phosphopeptides (CPP). The smaller fragment of less than 1 kDa and O-phospho-1-serine did not bind Ca2+ to any significant extend, while PPP of 1-3 kDa showed a higher ability than CPP to render soluble calcium. The results show that not only the phosphoserine residues are critical for Ca2+ binding, but also the molecular size of the phosphopeptides.
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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 | 0.001 |
| 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 | 0.002 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 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