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Related Concept Videos

Protein Folding01:25

Protein Folding

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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...
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Bacterial Protein Maturation01:26

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Bacterial protein maturation is a tightly regulated process that ensures newly synthesized polypeptides achieve correct functional conformations. This maturation involves a series of modifications, folding events, and quality control steps, often assisted by specialized chaperone proteins.N-Terminal ModificationsThe maturation of bacterial polypeptides begins cotranslationally as the polypeptide exits the ribosome. The first amino acid, N-formylmethionine (fMet), is typically modified at the...
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Conservation of Protein Domains Over Different Proteins02:26

Conservation of Protein Domains Over Different Proteins

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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.
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Protein Organization01:24

Protein Organization

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Proteins are polymers of amino acid residues. They are versatile and responsible for different cellular functions, including DNA replication, molecular transport, catalysis, and structural support. Proteins have a hierarchical structure comprising at least three levels of organization: primary, secondary, and tertiary structure. Some large proteins have a quaternary structure where individual protein subunits are linked together.
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Molecular Chaperones and Protein Folding03:00

Molecular Chaperones and Protein Folding

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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.
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Updated: Jan 8, 2026

Residue-Specific Exchange of Proline by Proline Analogs in Fluorescent Proteins: How "Molecular Surgery" of the Backbone Affects Folding and Stability
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Recent advances on protein engineering for improved stability.

Jinghao Shi1,2,3, Bo Yuan2,4, Hengquan Yang1,3

  • 1School of Chemistry and Chemical Engineering, Shanxi University, 030006, Taiyuan, China.

Biodesign Research
|December 19, 2025
PubMed
Summary
This summary is machine-generated.

This review explores engineering enzymes for industrial use, focusing on improving stability in organic solvents and at high temperatures using advanced methods like B-factors, ancestral reconstructions, and machine learning.

Keywords:
B-factorBiocatalysisDirected evolutionProtein engineeringThermostability

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Area of Science:

  • Biocatalysis
  • Protein Engineering
  • Industrial Biotechnology

Background:

  • Enzyme stability is critical for industrial biocatalyst applicability.
  • Organic solvents can enhance substrate solubility and enzyme stability.
  • Higher temperatures often increase enzymatic reaction rates.

Purpose of the Study:

  • To review recent advancements in engineering enzymes for industrial solvent and thermostability.
  • To provide insights into methodologies for enhancing enzyme stability.

Main Methods:

  • Utilizing B-factors for stability analysis.
  • Employing ancestral reconstructions to guide enzyme evolution.
  • Applying machine learning approaches for enzyme engineering.

Main Results:

  • Recent advances enable the engineering of enzymes with improved stability.
  • Methodologies like B-factors, ancestral reconstructions, and machine learning are effective.
  • Engineered enzymes show enhanced performance in organic solvents and at elevated temperatures.

Conclusions:

  • Enzyme engineering is key to meeting industrial demands for stable biocatalysts.
  • Advanced computational and experimental methods accelerate the development of robust enzymes.
  • Future applications of biocatalysis benefit from enhanced solvent and thermostability.