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Membrane Domains

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...

Conservation of Protein Domains Over Different Proteins

Conservation of Protein Domains Over Different Proteins

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.
A limited set of protein domains often duplicate and recombine during evolution. These domains can be organized in different combinations to...

Mechanisms of Membrane Domain Formation

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...

Conserved Binding Sites

Conserved Binding Sites

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.
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...

Covalently Linked Protein Regulators

Covalently Linked Protein Regulators

Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein....

Conservation of Protein Domains

Conservation of Protein Domains

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Related Experiment Video

Updated: Jul 31, 2025

Transmembrane Domain Oligomerization Propensity determined by ToxR Assay

Transmembrane Domain Oligomerization Propensity determined by ToxR Assay

Published on: May 26, 2011

LIM domain proteins.

Stefano Sala¹, Patrick W Oakes¹

¹Department of Cell and Molecular Physiology, Loyola University Chicago, Stritch School of Medicine, Maywood, IL 60153, USA.

Current Biology : CB

|May 9, 2023

Summary

LIM domain proteins are crucial for cell functions including transcription, division, and movement. This review explores their diverse roles in cellular processes and mechanical signaling.

Area of Science:

Molecular Biology
Cell Biology
Biochemistry

Background:

LIM domain proteins are a versatile class of proteins characterized by the presence of LIM domains.
These proteins are implicated in a wide range of cellular functions, but their comprehensive roles require further elucidation.

Purpose of the Study:

To introduce LIM domain proteins and provide an overview of their multifaceted roles.
To discuss the involvement of LIM domain proteins in key cellular processes such as transcription, cytokinesis, adhesion, motility, and mechanosignaling.

Main Methods:

Literature review and synthesis of existing research on LIM domain proteins.
Analysis of studies detailing the functions of LIM domain proteins in various cellular contexts.

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Monitoring Leucine-Rich Repeat Containing 8 Channel (LRRC8/VRAC) Activity Using Sensitized-Emission Förster Resonance Energy Transfer (SE-FRET)

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Main Results:

LIM domain proteins play critical roles in regulating gene expression through transcription.
These proteins are essential for cell division (cytokinesis), cell-cell and cell-matrix adhesion, and cell movement (motility).
Emerging evidence highlights their significance in mechanosignaling, linking mechanical forces to cellular responses.

Conclusions:

LIM domain proteins are integral regulators of fundamental cellular processes.
Their diverse functions underscore their importance in maintaining cellular integrity and responding to the cellular environment.
Further research into LIM domain proteins will likely uncover novel therapeutic targets for diseases involving cellular dysfunction.