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Related Concept Videos

Protein Folding01:22

Protein Folding

Overview
Protein Folding01:22

Protein Folding

Overview
Conservation of Protein Domains Over Different Proteins02:26

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 form...
Molecular Chaperones and Protein Folding03:00

Molecular Chaperones and Protein Folding

The native conformation of a protein is formed by interactions between the side chains of its constituent amino acids. When the amino acids cannot form these interactions, the protein cannot fold by itself and needs chaperones. Notably, chaperones do not relay any additional information required for the folding of polypeptides; the native conformation of a protein is determined solely by its amino acid sequence. Chaperones catalyze protein folding without being a part of the folded protein.
The...
Protein Folding01:25

Protein Folding

Proteins are chains of amino acids linked together by peptide bonds. Upon synthesis, a protein folds into a three-dimensional conformation, critical to its biological function. Interactions between its constituent amino acids guide protein folding, and hence the protein structure is primarily dependent on its amino acid sequence.
Protein Structure Is Critical to Its Biological Function
Proteins perform a wide range of biological functions such as catalyzing chemical reactions, providing...
Molecular Chaperones and Protein Folding03:00

Molecular Chaperones and Protein Folding

The native conformation of a protein is formed by interactions between the side chains of its constituent amino acids. When the amino acids cannot form these interactions, the protein cannot fold by itself and needs chaperones. Notably, chaperones do not relay any additional information required for the folding of polypeptides; the native conformation of a protein is determined solely by its amino acid sequence. Chaperones catalyze protein folding without being a part of the folded protein.
The...

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Related Experiment Video

Updated: Jul 10, 2026

Thermodynamics of Membrane Protein Folding Measured by Fluorescence Spectroscopy
10:09

Thermodynamics of Membrane Protein Folding Measured by Fluorescence Spectroscopy

Published on: April 28, 2011

Protein-fold evolution in the test tube.

C Schaffitzel1, A Plückthun

  • 1Biochemisches Institut, Winterthurerstr. 190, CH-8057 Zürich, Switzerland.

Trends in Biochemical Sciences
|October 9, 2001
PubMed
Summary
This summary is machine-generated.

Combining library selection and directed evolution enables novel protein discovery. Advanced in vitro techniques now allow de novo protein generation by screening vast sequence spaces.

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Area of Science:

  • Protein engineering and molecular biology.
  • Biochemistry and structural biology.

Background:

  • Traditional protein studies focused on existing scaffolds or short peptides.
  • Limited exploration of protein sequence space hindered discovery of novel folds and functions.

Discussion:

  • The synergy of library selection and directed evolution offers a powerful strategy for protein design.
  • Recent advancements in in vitro selection and evolution techniques have significantly expanded the accessible sequence space.

Key Insights:

  • Enables the discovery of proteins with entirely new folds and functions.
  • Facilitates the de novo generation of proteins through large-scale sequence screening.

Outlook:

  • Potential for designing bespoke proteins with tailored functions for various applications.
  • Future research may focus on optimizing these techniques for even greater efficiency and scope.