Video Experimental Relacionado
Updated: May 8, 2026
08:05
Assaying Protein Kinase Activity with Radiolabeled ATP
Published on: May 26, 2017
Aumento de la actividad de la quinasa con un neosubstrato derivado del ATP
Ralph E Kleiner1, Tarun M Kapoor
1Laboratory of Chemistry and Cell Biology, The Rockefeller University, New York, NY 10065, USA. rkleiner@rockefeller.edu
Cell
|August 20, 2013
Resumen
Los investigadores desarrollaron un nuevo método para activar el Parkinson.
Área de la Ciencia:
- La bioquímica es la bioquímica.
- La neurociencia es la neurociencia.
- Farmacología Farmacología.
Sus antecedentes:
- La reducción de la actividad de la quinasa está relacionada con enfermedades como el Parkinson.
- El desarrollo de tratamientos que mejoren la función de la quinasa es crucial.
Objetivo del estudio:
- Explorar nuevos agentes farmacológicos para el tratamiento de trastornos por deficiencia de quinasa.
- Investigar un enfoque innovador para la activación de la quinasa PINK1.1, asociada al Parkinson.
Principales métodos:
- Utilizó un neosubstrato derivado de ATP para activar PINK1.
- Se emplearon modelos celulares para probar el método de activación.
Principales resultados:
- Se ha activado con éxito la quinasa PINK1 en las células.
- Demostró el potencial del enfoque del neosubstrato.
Conclusiones:
- Esta estrategia ofrece una nueva vía terapéutica para la enfermedad de Parkinson.
- La activación farmacológica de PINK1 es factible y prometedora.
Videos de Conceptos Relacionados
01:22Amplifying Signals via Enzymatic Cascade
When a ligand binds to a cell-surface receptor, the receptor's intracellular domain changes shape, which may either activate its enzyme function or allow its binding to other molecules. The initial signal is amplified by most signal transduction pathways. This means that a single ligand molecule can activate multiple molecules of a downstream target. Proteins that relay a signal are most commonly phosphorylated at one or more sites, activating or inactivating the protein. Kinases catalyze the...
02:54Protein Kinases and Phosphatases
Proteins undergo chemical modifications that trigger changes in the charge, structure, and conformation of the proteins. Phosphorylation, acetylation, glycosylation, nitrosylation, ubiquitination, lipidation, methylation, and proteolysis are various protein modifications that regulate protein activity. Such modifications are usually enzyme-driven.
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
02:54Protein Kinases and Phosphatases
Proteins undergo chemical modifications that trigger changes in the charge, structure, and conformation of the proteins. Phosphorylation, acetylation, glycosylation, nitrosylation, ubiquitination, lipidation, methylation, and proteolysis are various protein modifications that regulate protein activity. Such modifications are usually enzyme-driven.
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
Protein kinases
Many proteins in the cell are regulated by phosphorylation, the addition of a phosphate group. A family of enzymes called kinases...
01:48ATP Synthase: Mechanism
In animals, the mitochondrial F1F0 ATP synthase is the key protein that synthesizes ATP molecules through a complex catalytic mechanism. While the nuclear genome encodes the majority of ATP synthase subunits, the mitochondrial genome encodes some of the enzyme's most critical components. The formation of this multi-subunit enzyme is a complex multi-step process regulated at the level of transcription, translation, and assembly. Defects in one or more of these steps can result in decreased ATP...
01:22PI3K/mTOR/AKT Signaling Pathway
The mammalian target of rapamycin (mTOR) is a serine/threonine kinase that regulates growth, proliferation, and cell survival in response to hormones, growth factors, or nutrient availability. This kinase exists in two structurally and functionally distinct forms: mTOR complex 1 (mTORC1) and mTOR complex 2 (mTORC2). The first form (mTORC1) is composed of a rapamycin-sensitive Raptor and proline-rich Akt substrate, PRAS40. In contrast, mTORC2 consists of a rapamycin-insensitive companion...
01:19Allosteric Proteins-ATCase
Binding sites linkages can regulate a protein's function. For example, enzyme activity is often regulated through a feedback mechanism where the end product of the biochemical process serves as an inhibitor.
Aspartate transcarbamoylase (ATCase) is a cytosolic enzyme that catalyzes the condensation of L-aspartate and carbamoyl phosphate to N-carbamoyl-L-aspartate. This reaction is the first step in pyrimidine biosynthesis. UTP and CTP, the end products of the pyrimidine synthesis pathway,...
Aspartate transcarbamoylase (ATCase) is a cytosolic enzyme that catalyzes the condensation of L-aspartate and carbamoyl phosphate to N-carbamoyl-L-aspartate. This reaction is the first step in pyrimidine biosynthesis. UTP and CTP, the end products of the pyrimidine synthesis pathway,...