Bibliographic record
Abstract
Covalently closed hairpin ends, also known as hairpin telomeres, provide an unusual solution to the end replication problem. The hairpin telomeres are generated from replication intermediates by a process known as telomere resolution. This is a DNA breakage and reunion reaction promoted by hairpin telomere resolvases (also referred to as protelomerases) found in a limited number of phage and bacteria. The reaction promoted by these enzymes is a chemically isoenergetic two-step transesterification without a requirement for divalent metal ions or high-energy cofactors and uses an active site and mechanism similar to that for type IB topoisomerases and tyrosine recombinases. The small number of unrelated telomere resolvases characterized to date all contain a central, catalytic core domain with the active site, but in addition carry variable C- and N-terminal domains with different functions. Similarities and differences in the structure and function of the telomere resolvases are discussed. Of particular interest are the properties of the Borrelia telomere resolvases, which have been studied most extensively at the biochemical level and appear to play a role in shaping the unusual segmented genomes in these organisms and, perhaps, to play a role in recombinational events.
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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) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| 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 | 0.001 | 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 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".