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Related Concept Videos

Protein Complexes with Interchangeable Parts01:57

Protein Complexes with Interchangeable Parts

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Groups of proteins may form a complex where each protein in this complex has a different role in the overall execution of the complex’s function. Often some of the proteins in the complex can be replaced by a closely related variant to give a complex that contains many of the same components yet is functionally distinct.
The SCF ubiquitin ligase is a protein complex of five individual proteins. This complex attaches ubiquitin to other target proteins to mark them for degradation. In order...
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Mechanical Protein Functions01:58

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Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force. 
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Protein Complex Assembly02:41

Protein Complex Assembly

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Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types.  Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...
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Eukaryotic Compartmentalization01:37

Eukaryotic Compartmentalization

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One of the distinguishing features of eukaryotic cells is that they contain membrane-bound organelles, such as the nucleus and mitochondria, that carry out specialized functions. Since biological membranes are only selectively permeable to solutes, they help create a compartment with controlled conditions inside an organelle. These microenvironments are tailored to the organelle's specific functions and help isolate them from the surrounding cytosol.
For example, lysosomes in the animal...
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Mechanisms of Membrane Domain Formation00:59

Mechanisms of Membrane Domain Formation

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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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Protein Translocation Machinery on the ER Membrane01:28

Protein Translocation Machinery on the ER Membrane

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The translocon complex situated on the ER membrane is the main gateway for the protein secretory pathway. It facilitates the transport of nascent peptides into the ER lumen and their insertion into the ER membrane.
Sec61 protein conducting channel
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Updated: Sep 11, 2025

Preparing Protein Producing Synthetic Cells using Cell Free Bacterial Extracts, Liposomes and Emulsion Transfer
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Engineering Proteinosomes with Cellular-Like Functionalities.

Renzhuo Li1, Xiaoman Liu1, Xin Huang1

  • 1State Key Laboratory of Advanced Inorganic Fibers and Composites, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001, China.

Chembiochem : a European Journal of Chemical Biology
|August 14, 2025
PubMed
Summary
This summary is machine-generated.

This review details proteinosomes, biomimetic structures mimicking cells. Advances in their construction and functionalization enable programmable bioactivity and prototissue formation for applications in artificial cells and therapies.

Keywords:
adjustable membrane permeabilityartificial cellschemical communicationproteinosomesself‐assembly

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Area of Science:

  • Biomimetic Chemistry
  • Synthetic Biology
  • Nanotechnology

Background:

  • Functional microcompartmentalized ensembles, such as proteinosomes, mimic cellular functions.
  • Recent advances focus on creating tunable, stable, and responsive biomimetic structures.

Purpose of the Study:

  • To review the construction, functionalization, and applications of proteinosomes.
  • To highlight innovations in materials and architectures for enhanced control.
  • To inspire further research in artificial cells and biomimetic materials.

Main Methods:

  • Interfacial self-assembly for proteinosome construction.
  • Polymer-based membrane templating.
  • Hybrid lipid-polymer systems for tunable properties.

Main Results:

  • Achieved tunable permeability, mechanical stability, and stimuli-responsive behaviors.
  • Enabled programmable bioactivity, communication, and prototissue formation.
  • Enhanced spatiotemporal control via stimuli-responsive materials and multicompartmentalization.

Conclusions:

  • Proteinosomes are versatile tools for next-generation artificial cell models and biomimetic materials.
  • Convergence of polymer chemistry, synthetic biology, and nanotechnology expands their scope.
  • Potential applications include cancer therapy, gene therapy, and artificial organelle design.