Related Experiment Video
Updated: Jul 5, 2026

09:51
Investigating Protein Sequence-structure-dynamics Relationships with Bio3D-web
Published on: July 16, 2017
Active site profiling to identify protein functional sites in sequences and structures using the Deacon Active Site
1Wake Forest University, Winston-Salem, North Carolina.
Current Protocols in Bioinformatics
|April 23, 2008
Summary
The DASP web application aids in analyzing protein functional sites by creating active site profiles. This tool helps identify common and unique features within protein families for detailed functional site characterization.
Area of Science:
- Bioinformatics
- Computational Biology
- Structural Biology
Background:
- Detailed characterization of protein functional sites is crucial and requires advanced analytical methods.
- Existing methods for protein functional site analysis are under active development, highlighting a need for improved tools.
Purpose of the Study:
- To describe the DASP (Database for Annotation, Soaking, and PDB) web application for protein functional site analysis.
- To present two protocols for utilizing DASP to create active site profiles and identify functional site signatures.
Main Methods:
- Development and description of the DASP web application based on a previously established method.
- Protocol 1: Creation of functional site signatures and active site profiles from protein structures.
- Protocol 2: Using active site profiles to search for similar functional sites in protein sequences.
Main Results:
- The DASP application enables the generation of detailed active site profiles for any protein family.
- Analysis of profiles reveals conserved features across families and unique characteristics (specificity determinants) within subfamilies.
- The tool facilitates searching for novel sequences containing functional sites similar to known ones.
Conclusions:
- DASP provides a valuable resource for the detailed annotation and analysis of protein functional sites.
- The presented protocols offer a systematic approach to understanding protein family-specific functional site characteristics and discovering related sequences.
Related Concept Videos
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 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...
Ribosome Profiling
Ribosome profiling or ribo-sequencing is a deep sequencing technique that produces a snapshot of active translation in a cell. It selectively sequences the mRNAs protected by ribosomes to get an insight into a cell’s translation landscape at any given point in time.
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique helps...
Applications of ribosome profiling
Ribosome profiling has many applications, including in vivo monitoring of translation inside a particular organ or tissue type and quantifying new protein synthesis levels.
The technique helps...
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,...
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,...
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...
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...
Proteomics
A proteome is the entire set of proteins that a cell type produces. We can study proteomes using the knowledge of genomes because genes code for mRNAs, and the mRNAs encode proteins. Although mRNA analysis is a step in the right direction, not all mRNAs are translated into proteins.
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term proteomics...
Proteomics is the study of proteomes' function. It involves the large-scale systematic study of the proteome to denote the protein complement expressed by a genome. Scientist Mark Wilkins coined the term proteomics...

