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Related Concept Videos

Protein Complex Assembly02:41

Protein Complex Assembly

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.
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Proteins: From Genes to Degradation

Within a biological system, the DNA encodes the RNA, and the nucleotide sequence in the RNA further defines the amino acid sequence in the protein. This is referred to as “The Central Dogma of Molecular Biology” - a term coined by Francis Crick.  Central dogma is a firm principle in biology that defines the flow of genetic information within any life form. The two fundamental steps in central dogma are - transcription and translation.
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Overview of Secretory Vesicles01:33

Overview of Secretory Vesicles

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Post-translational Translocation of Proteins to the RER01:27

Post-translational Translocation of Proteins to the RER

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Targeting proteins to the ER
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Related Experiment Video

Updated: May 21, 2026

In Vesiculo Synthesis of Peptide Membrane Precursors for Autonomous Vesicle Growth
07:10

In Vesiculo Synthesis of Peptide Membrane Precursors for Autonomous Vesicle Growth

Published on: June 28, 2019

Protein expression, aggregation, and triggered release from polymersomes as artificial cell-like structures.

Chiara Martino1, Shin-Hyun Kim, Louise Horsfall

  • 1The Division of Biomedical Engineering, School of Engineering, The University of Glasgow, Glasgow, G12 8LT, UK.

Angewandte Chemie (International Ed. in English)
|May 31, 2012
PubMed
Summary
This summary is machine-generated.

Artificial cells made from biocompatible polymersomes can now produce cytoskeletal proteins. This breakthrough allows for triggered protein release using osmotic shock, advancing synthetic biology.

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Published on: October 21, 2013

Area of Science:

  • Biotechnology
  • Synthetic Biology
  • Biochemistry

Background:

  • Artificial cells offer a platform for studying life's fundamental processes.
  • Polymersomes provide a biocompatible and tunable compartment for cellular functions.
  • Protein expression is a key capability for developing functional artificial cells.

Purpose of the Study:

  • To engineer artificial cells capable of expressing functional proteins.
  • To develop a method for controlled protein release from artificial cells.
  • To integrate protein expression machinery within polymersome-based synthetic cells.

Main Methods:

  • Construction of artificial cells using biocompatible polymersomes.
  • Encapsulation of gene expression machinery and amino acid building blocks.
  • Induction of protein expression within the artificial cell environment.
  • Application of negative osmotic shock to trigger protein release.

Main Results:

  • Successful expression of a specific cytoskeletal protein within the artificial cells.
  • Demonstration of triggered protein release via osmotic shock.
  • Characterization of the artificial cell's ability to sustain biochemical reactions.

Conclusions:

  • Biocompatible polymersomes can serve as effective hosts for protein expression in artificial cells.
  • Controlled protein release is achievable, enhancing the functionality of synthetic cell systems.
  • This work represents a significant step towards creating more sophisticated and controllable artificial life forms.