Related Experiment Video
Updated: Jan 23, 2026

Crystallizing Membrane Proteins for Structure Determination using Lipidic Mesophases
Published on: November 21, 2010
Lipid droplet-membrane contact sites - from protein binding to function
Abdou Rachid Thiam1, Isabelle Dugail2
1Laboratoire de Physique de l'École Normale Supérieure, ENS, Université PSL, CNRS, Sorbonne Université, Université Paris-Diderot, Sorbonne Paris Cité, 75005 Paris, France isabelle.dugail@inserm.fr thiam@ens.fr.
Lipid droplets (LDs) are evolving from simple fat storage sites to key players in cellular stress responses. Understanding how proteins interact with LDs and their connections to other organelles reveals their complex functions.
Area of Science:
- Cellular and Molecular Biology
- Biochemistry
- Physiology
Background:
- Rising obesity rates and associated diseases highlight the need to understand lipid metabolism.
- Lipid droplets (LDs) are central organelles for cellular lipid handling.
- Previous views limited LDs to mere lipid storage compartments.
Purpose of the Study:
- To review the evolving understanding of lipid droplet (LD) functions.
- To explore the role of proteins in determining LD function.
- To discuss new insights into LDs' interactions with other organelles.
Main Methods:
- Literature review of cellular and molecular studies on lipid droplets.
- Analysis of protein-LD interactions and their functional implications.
- Examination of discoveries regarding LD contact sites with other organelles.
Main Results:
- Lipid droplet (LD) functions extend beyond storage to encompass cellular stress responses.
- Protein binding to LDs is crucial for regulating their diverse activities.
- LDs form multiple contact sites with various cellular organelles, influencing their dynamics.
Conclusions:
- Lipid droplets (LDs) play a more generalized role in cellular physiology, particularly in stress.
- Understanding LD protein interactions and organelle tethering is key to their functional diversity.
- Further research into LDs' connections with other organelles will illuminate their dynamic nature.
More Related Videos
08:27Visualization and Quantification of Endogenous Intra-Organelle Protein Interactions at ER-Mitochondria Contact Sites by Proximity Ligation Assays
Published on: October 20, 2023
07:55Author Spotlight: Unveiling Mitochondrial Contact Sites and Architectural Insights
Published on: June 16, 2023
Related Concept Videos
Conserved Binding Sites
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally...
Conserved Binding Sites
Ligand Binding Sites
Protein-ligand interactions are quite specific; even though numerous potential ligands surround a cellular protein at any given time, only a particular ligand can bind to that protein. Moreover, a ligand binds only to a dedicated area on the surface of the protein, known as the...
Ligand Binding Sites
Introduction to Membrane Proteins
Transmission-based Precautions I: Contact, Enteric, and Droplets
Contact Precautions:
Contact precautions are the measures taken to prevent the transmission of infectious agents, especially epidemiologically important microorganisms such as MRSA or influenza, primarily transmitted through direct or indirect contact with an...