Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

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.
Protein Domains
The membrane comprises a group of distinct proteins responsible for carrying out a cell's specific function. For example, the plasma membrane of the human sperm, or a single germ cell, contains a unique set of proteins in the anterior...
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.
Another mechanism for membrane domain formation involves membrane proteins interacting with cytoskeletal...
Membrane Fluidity01:26

Membrane Fluidity

Membrane fluidity is explained by the fluid mosaic model of the cell membrane, which describes the plasma membrane structure as a mosaic of components—including phospholipids, cholesterol, proteins, and carbohydrates—that gives the membrane a fluid character.
Mosaic nature of the membrane
The mosaic characteristic of the membrane helps the plasma membrane remain fluid. The integral proteins and lipids exist as separate but loosely-attached molecules in the membrane. The membrane is a relatively...
Membrane Fluidity01:23

Membrane Fluidity

Cell membranes are composed of phospholipids, proteins, and carbohydrates loosely attached to one another through chemical interactions. Molecules are generally able to move about in the plane of the membrane, giving the membrane its flexible nature called fluidity. Two other features of the membrane contribute to membrane fluidity: the chemical structure of the phospholipids and the presence of cholesterol in the membrane.Fatty acids tails of phospholipids can be either saturated or...
Membrane Lipids01:32

Membrane Lipids

Lipids are an essential component of all biological membranes. The average lipid content in mammalian membranes is 50%, though it can be as low as 20% in the inner mitochondrial membrane or as high as 80% in the myelin sheath present around the nerve cells.
Phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, and sphingomyelin are the most common phospholipids present in mammalian membranes. At physiological pH, phosphatidylserine is negatively charged, while the other three...
Membrane Lipids01:32

Membrane Lipids

Lipids are an essential component of all biological membranes. The average lipid content in mammalian membranes is 50%, though it can be as low as 20% in the inner mitochondrial membrane or as high as 80% in the myelin sheath present around the nerve cells.
Phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, and sphingomyelin are the most common phospholipids present in mammalian membranes. At physiological pH, phosphatidylserine is negatively charged, while the other three...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Differential Trafficking Phenotypes of NPC1 Mutant Proteins Reveal Distinct Cholesterol Accumulation Profiles.

Journal of inherited metabolic disease·2026
Same author

Congenital sucrase-isomaltase mutations worsen IBS-linked V15F dysfunction and trafficking.

Gut·2025
Same author

Ensuring Robust Drug Delivery: A Comprehensive Study on the Mechanical and Chemical Performance of 3 mL RTU Cartridges.

PDA journal of pharmaceutical science and technology·2025
Same author

Characterization of 3D human pulmonary epithelial model morphology and oxygen status under normoxia and hypoxia.

Biochimica et biophysica acta. Molecular cell research·2025
Same author

Domain-Specific Effects of Sucrase-Isomaltase Genotype in Irritable Bowel Syndrome.

Gastroenterology·2025
Same author

<i>Rosa canina</i> L. Methanol Extract and Its Component Rutin Reduce Cholesterol More Efficiently than Miglustat in Niemann-Pick C Fibroblasts.

International journal of molecular sciences·2024

Related Experiment Video

Updated: Jun 21, 2026

Realistic Membrane Modeling Using Complex Lipid Mixtures in Simulation Studies
07:31

Realistic Membrane Modeling Using Complex Lipid Mixtures in Simulation Studies

Published on: September 1, 2023

Domains in biological membranes.

Robert Lindner1, Hassan Y Naim

  • 1Department of Cell Biology, Hannover Medical School, Hannover, Germany.

Experimental Cell Research
|July 28, 2009
PubMed
Summary

Biological membranes are complex, featuring ordered domains and interactions, not just random components. This review explores membrane domain formation, lipid rafts detection in living cells, and their diverse roles.

Area of Science:

  • Biochemistry
  • Cell Biology
  • Membrane Biophysics

Background:

  • The fluid mosaic model has evolved, revealing biological membranes as complex structures.
  • Membranes contain diverse domains and numerous protein-lipid/protein-protein interactions.
  • These interactions compartmentalize and organize membrane components.

Purpose of the Study:

  • To highlight structural principles governing membrane domain formation.
  • To discuss lipid rafts, their detection in living cells, and biochemical characterization.
  • To explore the concept of lipid raft diversity.

Main Methods:

  • Review of structural principles of membrane domain formation.
  • Discussion of recent advances in detecting lipid rafts in living cells.

More Related Videos

Method to Visualize and Analyze Membrane Interacting Proteins by Transmission Electron Microscopy
10:49

Method to Visualize and Analyze Membrane Interacting Proteins by Transmission Electron Microscopy

Published on: March 5, 2017

A Model Membrane Platform for Reconstituting Mitochondrial Membrane Dynamics
10:31

A Model Membrane Platform for Reconstituting Mitochondrial Membrane Dynamics

Published on: September 2, 2020

Related Experiment Videos

Last Updated: Jun 21, 2026

Realistic Membrane Modeling Using Complex Lipid Mixtures in Simulation Studies
07:31

Realistic Membrane Modeling Using Complex Lipid Mixtures in Simulation Studies

Published on: September 1, 2023

Method to Visualize and Analyze Membrane Interacting Proteins by Transmission Electron Microscopy
10:49

Method to Visualize and Analyze Membrane Interacting Proteins by Transmission Electron Microscopy

Published on: March 5, 2017

A Model Membrane Platform for Reconstituting Mitochondrial Membrane Dynamics
10:31

A Model Membrane Platform for Reconstituting Mitochondrial Membrane Dynamics

Published on: September 2, 2020

  • Evaluation of biochemical approaches for lipid raft characterization.
  • Main Results:

    • Membrane domains are governed by specific structural principles.
    • Recent advances enable detection of lipid rafts in living cells.
    • Biochemical methods aid in characterizing lipid rafts and their diversity.

    Conclusions:

    • Biological membranes are highly organized, not random.
    • Lipid rafts are key functional membrane domains.
    • Understanding lipid raft diversity is crucial for cell biology.