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Related Concept Videos

Protein-protein Interfaces02:04

Protein-protein Interfaces

Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a polypeptide...
Protein-Protein Interfaces02:04

Protein-Protein Interfaces

Many proteins form complexes to carry out their functions, making protein-protein interactions (PPIs) essential for an organism's survival. Most PPIs are stabilized by numerous weak noncovalent chemical forces. The physical shape of the interfaces determines the way two proteins interact. Many globular proteins have closely-matching shapes on their surfaces, which form a large number of weak bonds. Additionally, many PPIs occur between two helices or between a surface cleft and a polypeptide...
Protein Networks02:26

Protein Networks

An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
Protein Networks02:26

Protein Networks

An organism can have thousands of different proteins, and these proteins must cooperate to ensure the health of an organism. Proteins bind to other proteins and form complexes to carry out their functions. Many proteins interact with multiple other proteins creating a complex network of protein interactions.
These interactions can be represented through maps depicting protein-protein interaction networks, represented as nodes and edges. Nodes are circles that are representative of a protein,...
Protein Organization01:24

Protein Organization

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.
The primary structure of a protein is its amino acid sequence.
Conserved Binding Sites01:49

Conserved Binding Sites

Many proteins’ biological role depends on their interactions with their ligands, small molecules that bind to specific locations on the protein known as ligand-binding sites. Ligand-binding sites are often conserved among homologous proteins as these sites are critical for protein function.
Binding sites are often located in large pockets, and if their location on a protein’s surface is unknown, it can be predicted using various approaches. The energetic method computationally analyses the...

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Related Experiment Video

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Genome-wide Protein-protein Interaction Screening by Protein-fragment Complementation Assay (PCA) in Living Cells
08:38

Genome-wide Protein-protein Interaction Screening by Protein-fragment Complementation Assay (PCA) in Living Cells

Published on: March 3, 2015

Computer-aided design of functional protein interactions.

Daniel J Mandell1, Tanja Kortemme

  • 1Graduate Program in Bioinformatics and Computational Biology, California Institute for Quantitative Biosciences, and Department of Bioengineering and Therapeutic Sciences, University of California San Francisco, USA.

Nature Chemical Biology
|October 21, 2009
PubMed
Summary

Computational protein design aims to create amino acid sequences for specific structures and functions. Researchers are advancing protein-protein interaction design for precise biological control, leveraging advanced modeling for new functions.

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Application of I TASSER, trRosetta, UCSF Chimera, HADDOCK server, and HEX loria for De Novo and In Silico Design of Proteins
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Area of Science:

  • Biochemistry
  • Computational Biology
  • Protein Engineering

Background:

  • Protein design methods computationally identify amino acid sequences for desired structures and functions.
  • Engineering protein binding activities is a primary focus in functional protein design.
  • Controlling biological processes necessitates precise protein-protein interactions, recognizing specific partners while excluding others.

Purpose of the Study:

  • To advance the design of functional protein-protein interactions.
  • To engineer proteins capable of precise biological process control.
  • To integrate multiple functional requirements into protein designs simultaneously.

Main Methods:

  • Utilizing predictive methods for computational protein design.
  • Formulating protein function as engineering novel binding activities.
  • Leveraging high-resolution computational modeling, including protein conformational variability.

Main Results:

  • Progress in designing functional protein-protein interactions.
  • Development of strategies for precise biological control through engineered proteins.
  • Demonstrated potential for incorporating multiple functional requirements.

Conclusions:

  • Computational protein design is advancing towards engineering complex functions.
  • High-resolution modeling and conformational variability are key to future protein engineering.
  • The field is moving towards simultaneous incorporation of multiple functional requirements in protein design.