Phase Separation
Phase Separation - Related Videos
04:16
Enrichment of Bacterial Lipoproteins Using Non-Ionic Detergent Phase Separation
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2025
Source: Armbruster, K. M., Meredith, T. C. Enrichment of Bacterial Lipoproteins and Preparation of N-terminal Lipopeptides for Structural Determination by Mass Spectrometry. J. Vis. Exp. (2018)This video demonstrates the enrichment of bacterial lipoproteins using a non-ionic detergent that undergoes phase separation upon warming. Through sequential temperature shifts and centrifugation steps, lipoproteins are selectively partitioned into the detergent phase, while non-lipoprotein contaminants...
04:38
Protein Phase Separation Assay: An Optogenetic Method for Mutant RNA-Binding Protein Phase Separation in Spinal Motor Neurons of Zebrafish Larvae
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2025
In this video, we describe a phase separation assay, wherein intracellular proteins comprising intrinsically disordered regions fused to a photosensitive oligomerization domain are induced via blue-light exposure to self-associate into membrane-less liquid-like condensates.
03:11
Liquid Phase Isoelectric Focusing: An Electrophoresis Technique to Separate Bioactive Molecules from Crude Gymnema sylvestre Extract
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2025
This video describes a technique to separate complex molecules from plant extracts using liquid phase isoelectric focusing. This technique helps purify complex biomolecules in their native state which can be used for various downstream applications.
02:39
Phase Diagrams
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2020
A phase diagram combines plots of pressure versus temperature for the liquid-gas, solid-liquid, and solid-gas phase-transition equilibria of a substance. These diagrams indicate the physical states that exist under specific conditions of pressure and temperature and also provide the pressure dependence of the phase-transition temperatures (melting points, sublimation points, boiling points). Regions or areas labeled solid, liquid, and gas represent single phases, while lines or curves represent...
06:34
In vitro Reconstitution of Cytoskeletal Networks inside Phase Separated Giant Unilamellar Vesicles (GUVs)
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Cited by 1 •
2025
This article introduces a simple one-pot reconstitution of cytoskeletal networks inside phase separated giant vesicles. The method can be generalized and applied to encapsulation or confinement of a wide range of biomolecules.
FAQs
Multivalent interactions allow proteins, RNA, and other molecules to engage one another at multiple sites, strengthening collective association. When these interactions favor demixing, selected components become concentrated together rather than remaining uniformly distributed. This molecular behavior provides a basis for forming condensates that can organize cellular activities without requiring membrane-enclosed compartments.
Biomolecular condensates remain dynamic because their components exchange with the surrounding solution. This exchange distinguishes them from rigid, permanently isolated structures and allows their composition to respond to changing molecular interactions. As a result, condensates can concentrate particular proteins or RNA while retaining the flexibility needed to regulate ongoing cellular processes.
Concentration within a condensate can increase the local availability of selected molecules and influence how they interact. This organization may help coordinate transcription, RNA processing, signaling, or stress responses by bringing relevant components together. The outcome depends on which proteins, RNA molecules, and other factors participate in the separated phase and how their interactions are regulated.
A biological study should connect molecular interactions with the organization and behavior of condensates inside cellular processes. Researchers can ask which proteins, RNA molecules, or other components become associated, how dynamically they exchange with the surrounding solution, and which activity is affected. These questions link the physical process to transcription, RNA processing, signaling, or stress responses.
In biology, condensate formation is associated with several forms of cellular organization, including transcription, RNA processing, signaling, and responses to stress. Examining these settings helps researchers determine how concentrating selected molecules influences a process. It also broadens the significance of phase separation beyond structure, showing how molecular organization can affect cellular function.
Studying phase separation may clarify how altered condensate formation contributes to disease by linking changes in molecular organization with cellular consequences. The same principles also inform research on synthetic cells and biomaterials, where controlled organization of molecules is a relevant design goal. Thus, the topic connects biological mechanism with biomedical and materials-oriented research.