Related Experiment Video
Updated: Apr 29, 2026
10:58
Protein WISDOM: A Workbench for In silico De novo Design of BioMolecules
Published on: July 25, 2013
16.2K
Pairwise decomposition of an MMGBSA energy function for computational protein design
Thomas Gaillard1, Thomas Simonson
1Department of Biology, Laboratoire de Biochimie (CNRS UMR7654), Ecole Polytechnique, 91128, Palaiseau, France.
Journal of Computational Chemistry
|May 24, 2014
Summary
Computational protein design (CPD) simplifies energy calculations by decomposing protein MMGBSA energy functions. This method improves efficiency for predicting new proteins while maintaining reasonable error margins.
Area of Science:
- Computational biology
- Biophysics
- Protein engineering
Background:
- Computational protein design (CPD) faces challenges due to vast sequence and conformation spaces.
- Strategies like fixed backbones and precalculated energy matrices reduce complexity.
- Pairwise decomposition of energy functions is a key technique in CPD.
Purpose of the Study:
- To theoretically examine the pairwise decomposition of protein MMGBSA energy functions.
- To evaluate an existing implementation of this decomposition for CPD.
- To present an improved pairwise decomposition for the Surface Area term.
Main Methods:
- Theoretical analysis of protein MMGBSA energy functions.
- Investigating Generalized Born and Surface Area terms.
- Detailed error evaluation of the decomposition on energy components.
Main Results:
- The many-body character of the Generalized Born term is addressed via an effective dielectric environment.
- An improved pairwise decomposition is presented for the Surface Area term.
- The error introduced by the decomposition is quantified and found to be reasonable.
Conclusions:
- Pairwise decomposition of MMGBSA energy functions is a viable strategy for CPD.
- The proposed improvements maintain reasonable error levels, aiding protein design.
- This work contributes to more efficient and accurate computational protein design.
Related Concept Videos
01:49Conserved Binding Sites
4.1K
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...
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...
4.1K
02:47Protein Families
13.3K
Protein families are groups of homologous proteins; that is, they have similarities in amino acid sequences and three-dimensional structures. Protein families usually occur because of gene duplication, where an additional copy of a gene is inserted into the genome of an organism. Mutations that change the amino acids but still allow the protein to be properly synthesized, will lead to new protein family members. If these new proteins contain similar amino acids in key...
13.3K
01:24Protein Organization
7.2K
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....
The primary structure of a protein is its amino acid sequence....
7.2K
02:27Predicting Molecular Geometry
35.6K
VSEPR Theory for Determination of Electron Pair Geometries
35.6K
02:21Globular and Fibrous Proteins
33.9K
Many proteins can be classified into two distinct subtypes - globular or fibrous. These two types differ in their shapes and solubilities.
Globular proteins are also known as spheroproteins and typically are approximately round in shape. They contain a mix of amino acid types and contain differing sequences in their primary structures. Globular proteins have many different functions, such as enzymes, cellular messengers, and molecular transporters. These roles often require the proteins to be...
Globular proteins are also known as spheroproteins and typically are approximately round in shape. They contain a mix of amino acid types and contain differing sequences in their primary structures. Globular proteins have many different functions, such as enzymes, cellular messengers, and molecular transporters. These roles often require the proteins to be...
33.9K