Organization of D<sub>H</sub>-Gene Locus is Distinct in Cattle
Bibliographic record
Abstract
Some cattle antibodies are amongst the largest known to exist, in a species where CDR3 of the heavy-chain variable region (CDR3H) is of exceptional size as it may extend up to 61 amino acids. The origin of such an exceptionally long CDR3H in cattle antibodies is not yet understood. For these reasons, we have completely characterized DH gene locus in a Holstein cow. In contrast to other species, such as mice and humans, the DH gene locus in cattle, extending over 68 kb, is organized in subclusters comprising two to four DH gene segments. Analysis of DH genes reveals the presence of characteristic repetitive GGT and TAT codons. No evidence for a DH gene segment longer than 148 base pairs has been noted. Therefore, mechanistic factors contribute significantly to CDR3H size generation. Such comparative genomics perspectives of bovine D gene loci have revealed the complexity of evolution, across animal phyla, of functional significance in the generation of antibody diversity.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 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".