Pourquoi ce travail est dans la base
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Notice bibliographique
Résumé
The <i>in vivo </i>monitoring and characterization of protein-protein interactions are essential to understanding cellular events in living organisms. Proteins never act alone in the cell; on the contrary, they associate with each other to form stable or transient complexes that execute certain cellular functions. Aberrant protein interactions were observed in many pathological conditions, and therefore <i>in vivo </i>investigation of protein-protein interactions-noninvasively with high temporal and spatial resolution-could shed new light on the mechanisms underlying these interactions and provide new insights for the development of new treatment strategies. To adapt existing <i>in vitro </i>and cell-culture-based techniques to study protein-protein interactions in a living organism, the signal of the event must be detected noninvasively from inside the living subject. Optical imaging is an ideal tool for such research, as it allows monitoring intracellular processes in real time, without interferences, and with high spatial and temporal resolution. Three major approaches were developed to monitor protein-protein interactions <i>in vivo </i>using optical reporters. These include the two-hybrid system, protein complementation assays based on luciferases and fluorescent proteins, and assays based on nonradiative energy transfer (FRET and BRET). <strong>6.1 Two-Hybrid System for In Vivo Monitoring of Protein-Protein Interactions</strong> The two-hybrid system exploits the ability of a pair of interacting proteins to bring a transcription activation domain into close proximity with a DNA-binding site, which regulates the expression of an adjacent reporter gene (Fig. 6.1). This method was originally developed for yeast. Two proteins of interest were expressed in yeast: one fused to a DNA-binding domain, and the other to a transcriptional activation domain. The first hybrid protein can bind to DNA, but will not activate transcription if it does not have an activation domain. Another hybrid protein, if present alone, does not activate transcription because it does not bind to the upstream activation system. When both hybrid proteins are present, they form a complex, thus bringing both the DNA-binding domain and the transcription activation domain together, which in turn triggers the transcription of the reporter gene. In early publications, β-galactosidase was used as a reporter molecule generating blue colonies on plates or filters containing X-Gal. The two-hybrid system was shown to be highly sensitive; the level of induced transcriptional activity seemed to be proportional to the affinity of the investigated proteins. However, due to the nature of the signal (color), it was impossible to apply this method for real-time <i>in vivo </i>imaging.
Récupéré en direct depuis OpenAlex et désinversé. Les résumés ne sont pas conservés dans cette base de données : les index inversés représentent 8,6 Go des 9,3 Go de texte de la base, et le serveur dispose de 13 Go libres.
Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,000 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,000 |
| Études des sciences et des technologies | 0,000 | 0,000 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,000 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découle