Bibliographic record
Abstract
Abstract Penta‐EF hand proteins, or PEFLINs, belong to the superfamily of regulatory Ca2+‐binding proteins with EF‐hand motifs. The calcium‐binding domain is ∼170 residues long and contains five EF‐hand motifs, of which only some retain the ability to bind calcium. Within individual molecules the (1st + 2nd) and (3rd + 4th) EF‐hands are associated in pairs while the 5th EF‐hand is unpaired. This domain is associated with an N‐terminal domain of varying length, usually 20 to 100 residues long and with a Gly/Pro‐rich region. Binding of Ca2+promotes association of these proteins with membranes, andin vitroleads to aggregation. On the basis of the 1st EF‐hand, these proteins are divided into two subfamilies. Calpain, grancalcin, and sorcin have a one‐residue deletion in the Ca2+‐binding loop between helices E and F and form a distinct variant of calcium binding. ALG‐2 and peflin have the canonical EF1 hand and bind calcium in a standard way. All penta‐EF hand proteins form homo‐ or heterodimers. The dimerization is promoted by pairing of the 5th EF‐hand of each molecule; thus in the dimer all EF‐hands are paired. Binding of Ca2+promotes only small, mostly local, conformational changes and it is plausible that binding of a concomitant partner molecule is required for larger rearrangements to occur.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| 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 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.003 | 0.001 |
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 source (direct Gemma or distilled Codex), 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".