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Related Concept Videos

Membrane Domains01:18

Membrane Domains

The membrane domains concentrate specific lipids and proteins at one place within the membrane, which helps in cell signaling, adhesion, and other critical cellular processes. These domains can differ in size, composition, function, and lifespan.
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Protein domains are small structurally independent units that are part of a single amino acid chain.  Although these domains are often structurally independent, they may rely on synergistic effects to perform their functions as part of a larger protein. Protein domains may be conserved within the same organism, as well as across different organisms.
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Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein known as ligand-binding sites. Ligand-binding sites are often conserved among homologous proteins as these sites are critical for protein function.
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Drugs exert their therapeutic effects by interacting with receptors, enzymes, or ion channels that are present throughout the human body. The strength and duration of the interaction between a drug and its target receptor are characterized by the selectivity and specificity of the drug. Selectivity refers to a drug's strong preference for its intended target over other targets. For instance, isoprenaline, a non-selective β-adrenergic agonist, interacts with both β1- and β2-adrenergic receptors...
Mechanisms of Membrane Domain Formation00:59

Mechanisms of Membrane Domain Formation

Different physical properties of lipids and proteins allow them to localize and form distinct islands or domains in the membrane. Some membrane domains are formed due to protein-protein interactions, whereas others are formed due to the presence of specific lipids such as sphingolipids and sterols—for example, large proteins, such as bacteriorhodopsin, aggregate and create distinct domains.
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Related Experiment Video

Updated: May 26, 2026

The (Spatial) Memory Game: Testing the Relationship Between Spatial Language, Object Knowledge, and Spatial Cognition
05:15

The (Spatial) Memory Game: Testing the Relationship Between Spatial Language, Object Knowledge, and Spatial Cognition

Published on: February 19, 2018

How specific is domain specificity: does it extend across playing position?

Lyndell Bruce1, Damian Farrow, Annette Raynor

  • 1Australian Institute of Sport, Leverrier Crescent, Bruce, ACT, Australia. lyndell.bruce@rmit.edu.au

Journal of Science and Medicine in Sport
|December 24, 2011
PubMed
Summary
This summary is machine-generated.

This study investigated decision-making in netball, finding limited evidence for positional specificity. Skilled goalers and centre court players showed some position-specific accuracy, but overall, expertise effects were not strongly position-dependent.

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Area of Science:

  • Sport Science
  • Cognitive Psychology
  • Motor Expertise

Background:

  • Understanding expertise in sports often involves examining domain specificity.
  • Netball, with its distinct player positions, provides a unique context to study positional specificity in decision-making.

Purpose of the Study:

  • To investigate the extent of domain specificity in sport expertise.
  • To examine positional specificity effects on decision-making in netball players.

Main Methods:

  • A video-based decision-making task was administered to skilled players (goalers, centre court, defenders) and novices.
  • Participants completed scenarios from their familiar position and two others in a counterbalanced order.

Main Results:

  • Skilled goalers and centre court players were more accurate than novices on goaler scenarios.
  • Skilled centre court players and defenders outperformed novices on centre court scenarios.
  • Skilled defenders did not show significant differences compared to other groups on defence scenarios.

Conclusions:

  • Findings provide limited support for decision-making being highly specific to playing position in netball.
  • Goalers and centre court players demonstrated some position-specific accuracy in attack and centre court scenarios, respectively.