Dissecting Functional Interactions in Coagulation Protein Complexes by Use of NMR Spectroscopy
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Bibliographic record
Abstract
The blood coagulation cascade can be considered as a system of well-orchestrated protein activation reactions involving and leading to the formation of large macromolecular assemblies. NMR investigations performed during the last six years have focused on the structural, motional and binding properties of some protein domains and interfaces critical for the formation of these protein complexes, outlining sophisticated intermolecular adaptations. The studied protein domains are either single molecules or covalently-linked heterodimers of the epidermal growth factor (EGF) homology domains, calcium-binding EGF domains and gamma-carboxyglutamic(Gla)-containing domains responsible for calcium-dependent binding to cell membranes. The characterized binding interfaces have included those between thrombin and fibrinogen, between thrombin and thrombomodulin, between factor VIIIa and the cell membrane, between tissue factor and factor VIIa, and most recently between factor Va and prothrombin. The obtained results indicate that the regulation of blood coagulation by protein and low molecular weight cofactors may involve a significant degree of protein folding transitions with changes in molecular and conformational motions coupled to enzymatic activities. This new level of complexity of the molecular processes controlling coagulation may lead to novel strategies for the development of more effective therapeutic anticoagulants.
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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) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 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 it