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Videos de Conceptos Relacionados

Adhesion01:14

Adhesion

Adhesion occurs when one type of molecule is attracted to a different molecule. Water exhibits adhesive properties in the presence of polar surfaces, such as glass or cellulose in plants. For instance, when water is poured into a glass, the positively charged hydrogen molecules of water are more attracted to the negatively charged oxygen molecules in the silica than to the oxygen in neighboring water molecules.
Capillary action is a result of water’s adhesive tendencies. When a narrow glass...
Obedience01:08

Obedience

According to obedience research, we may harm others under the forceful pressures of an authority figure (Milgram, 1974). How about if the inappropriate orders were delivered with less force? The increasing interdependence between nurses and physicians compelled Hofling and his colleagues to explore nurses’ reactions to a potentially harmful medical request made by the perceived authority figure, the doctor (Hofling, Brotzman, Dalrymple, Graves, & Pierce, 1966). In this situation, obedience...
Adherens Junctions01:24

Adherens Junctions

Strong contact points between adjacent cells anchor them to each other, forming tissues. Such anchoring junctions are of two types –  adherens junctions and desmosomes. Adherens junctions are abundant in tissues such as  epithelium and endothelium, forming a continuous zone of adhesion called the adhesion belt. In other tissues, such as  heart muscle, they appear as clusters, linking the cells to produce coordinated heart muscle contraction.
Adherens Junctions are Dynamic
The endothelial cells...
Cell Adhesion Molecules - Types and Functions01:20

Cell Adhesion Molecules - Types and Functions

Cell adhesion molecules (CAMs) are pivotal to multicellularity and the coordinated functioning of tissues and organ systems. They enable physical interactions between cells and provide mechanical strength to tissues. They also function as receptors for signal transmission across the plasma membrane. The CAMs are broadly classified into four families - integrins, cadherins, selectins, and immunoglobulin-like CAMs (IgCAMs).
CAM Families
The Integrin family of proteins is primarily  involved in a...
Immunoglobulin-like Cell Adhesion Molecules01:31

Immunoglobulin-like Cell Adhesion Molecules

Immunoglobulin-like cell adhesion molecules or Ig-CAMs are a versatile group of cell surface glycoproteins belonging to the immunoglobulin protein superfamily. Ig-CAMs possess the characteristic immunoglobulin protein domains and other domains such as the fibronectin type III domain. The Ig domains are glycosylated to varying degrees in different Ig-CAMs.
Ig-CAMs exhibit either homophilic binding (to other Ig-CAMs) or heterophilic binding (to other ligands such as integrins). While most Ig-CAMs...
Cell Adhesion Molecules - Types and Functions01:20

Cell Adhesion Molecules - Types and Functions

Cell adhesion molecules (CAMs) are pivotal to multicellularity and the coordinated functioning of tissues and organ systems. They enable physical interactions between cells and provide mechanical strength to tissues. They also function as receptors for signal transmission across the plasma membrane. The CAMs are broadly classified into four families - integrins, cadherins, selectins, and immunoglobulin-like CAMs (IgCAMs).
CAM Families
The Integrin family of proteins is primarily  involved in a...

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Video Experimental Relacionado

Updated: Jul 8, 2026

Using Continuous Data Tracking Technology to Study Exercise Adherence in Pulmonary Rehabilitation
09:42

Using Continuous Data Tracking Technology to Study Exercise Adherence in Pulmonary Rehabilitation

Published on: November 8, 2013

¿Puedes adherirte a mí ahora? Bien bueno bueno bueno.

Brendan Cormack1

  • 1Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, MD 21210, USA.

Cell
|March 16, 2004
PubMed
Resumen

Los factores genéticos y epigenéticos controlan la expresión génica de Saccharomyces cerevisiae FLO. Esta regulación genera una diversidad significativa de la superficie celular dentro de las poblaciones de levaduras, lo que afecta la función celular.

Área de la Ciencia:

  • Biología Molecular Biología Molecular
  • Genética La genética.
  • Biología celular Biología celular.

Sus antecedentes:

  • Los genes FLO en Saccharomyces cerevisiae codifican proteínas cruciales para las funciones de la superficie celular.
  • Las propiedades de la superficie celular son vitales para las interacciones y la supervivencia de las levaduras.

Objetivo del estudio:

  • Investigar los mecanismos reguladores que controlan la expresión del gen FLO en la levadura.
  • Comprender cómo surge la diversidad de expresión génica dentro de una población de levaduras.

Principales métodos:

  • Análisis de los patrones de expresión génica de FLO.
  • Investigación de los elementos reguladores genéticos y epigenéticos.
  • Estudios a nivel de población de las características de la superficie celular de las levaduras.

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Last Updated: Jul 8, 2026

Using Continuous Data Tracking Technology to Study Exercise Adherence in Pulmonary Rehabilitation
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Static Adhesion Assay for the Study of Integrin Activation in T Lymphocytes
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Static Adhesion Assay for the Study of Integrin Activation in T Lymphocytes

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Dynamic Adhesion Assay for the Functional Analysis of Anti-adhesion Therapies in Inflammatory Bowel Disease
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Dynamic Adhesion Assay for the Functional Analysis of Anti-adhesion Therapies in Inflammatory Bowel Disease

Published on: September 20, 2018

Principales resultados:

  • Se identificaron mecanismos genéticos y epigenéticos como reguladores clave de la expresión génica de FLO.
  • Se observó una diversidad significativa de la superficie celular dentro de la población de levaduras, directamente relacionada con la expresión génica de FLO.
  • Demostró un vínculo directo entre la regulación génica y la diversidad fenotípica.

Conclusiones:

  • La expresión génica de FLO está bajo un control multifacético, que involucra tanto vías genéticas como epigenéticas.
  • Esta red reguladora genera una heterogeneidad sustancial de la superficie celular en Saccharomyces cerevisiae.
  • La comprensión de estos mecanismos proporciona información sobre la dinámica de la población y la adaptación en la levadura.