Video Experimental Relacionado
Updated: Jun 18, 2026

09:03
Post-Movie Subliminal Measurement (PMSM), for Investigating Implicit Social Bias
Published on: February 29, 2020
Finales: los últimos minutos de Smads
1State Key Laboratory of Biomembrane and Membrane Biotechnology, College of Life Sciences, Tsinghua University, Beijing 100084, China. ygchen@tsinghua.edu.cn
Cell
|November 17, 2009
Resumen
La transformación de la señalización del factor de crecimiento beta (TGF-β) implica la fosforilación de la proteína Smad. Esta fosforilación del enlace es crucial tanto para la activación de Smad como para la posterior degradación, revelando una doble función reguladora.
Área de la Ciencia:
- Biología Molecular Biología Molecular
- La señalización celular de las células.
- La bioquímica es la bioquímica.
Sus antecedentes:
- Las vías de señalización del factor de crecimiento transformador-beta (TGF-β) son críticas en los procesos celulares.
- Las proteínas Smad (R-Smad) reguladas por los receptores son mediadores clave del TGF-β.
- La fosforilación de R-Smads es un mecanismo regulador conocido.
Videos de Conceptos Relacionados
Ending Relationships
The dissolution of intimate relationships presents complex emotional and psychological challenges, particularly when emotional bonds are strong, the relationship is long-standing, and perceived alternatives are limited. This distress often intensifies in romantic breakups, where the initiator may experience greater turmoil than the rejected partner. Contributing factors include residual attachment, guilt over causing pain, and uncertainty about how to manage the situation. The stress is further...
Competition
When organisms require the same limited resources within an environment, they may have to compete for them. Competition is a net-negative interaction. Even if two competing individuals or populations do not interact directly, the overall fitness of both competitors is lowered as a result of not having full access to the limited resource.Intraspecific competition, which occurs between individuals of the same species, serves as a natural mechanism for regulating population size. Too much...
Flashbulb Memory
A flashbulb memory is a highly vivid and detailed memory, often linked to events of significant emotional impact. These memories stand out in contrast to everyday memories due to their clarity and the precision with which they are recalled. The strong emotions associated with the event act as a catalyst, ensuring that specific details, such as one's location, actions, and even peripheral elements, are etched into memory with remarkable accuracy. For example, many people can vividly recall where...
Spontaneity
A spontaneous process is one that occurs naturally under certain conditions. A nonspontaneous process, on the other hand, will not take place unless it is “driven” by the continual input of energy from an external source. Processes have a natural tendency to occur in one direction under a given set of conditions. Water will naturally flow downhill (spontaneous process), but uphill flow (nonspontaneous process) requires outside intervention such as the use of a pump. Iron exposed to the earth’s...
Moment of a Couple: Problem Solving
The moment of couple is an essential concept in physics and engineering, used to calculate the rotational force, or torque, that is created when a couple —two equal and opposite forces—acts on an object.
The moment of a couple is found by multiplying the magnitude of one of the forces by the perpendicular distance between the line of action of the two forces. This creates a twisting force, which can be used to rotate an object. The moment of a couple is used to solve problems involving balanced...
The moment of a couple is found by multiplying the magnitude of one of the forces by the perpendicular distance between the line of action of the two forces. This creates a twisting force, which can be used to rotate an object. The moment of a couple is used to solve problems involving balanced...
The Small x Assumption
If a reaction has a small equilibrium constant, the equilibrium position favors the reactants. In such reactions, a negligible change in concentration may occur if the initial concentrations of reactants are high and the Kc value is small. In such circumstances, the equilibrium concentration is approximately equal to its initial concentration. This estimation can be used to simplify the equilibrium calculations by assuming that some equilibrium concentrations are equal to the initial...
