Catcher/Tag Toolbox: Biomolecular Click-Reactions For Protein Engineering Beyond Genetics
1Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16100, 02150, Espoo, Finland.
Chembiochem : a European Journal of Chemical Biology
|October 18, 2023
Summary
Catcher/Tag systems offer precise protein conjugation via isopeptide bonds for diverse applications. Future developments aim to enhance control over this versatile protein modification technique.
Area of Science:
- Biochemistry
- Molecular Biology
- Synthetic Biology
Background:
- Protein conjugation beyond genetic methods is a growing area of interest.
- Catcher/Tag systems utilize isopeptide bonds for specific protein conjugation in vitro and in vivo.
- These systems offer efficient, robust, and irreversible protein modification strategies.
Purpose of the Study:
- To summarize recent advancements in the Catcher/Tag toolbox.
- To highlight the design of Catcher/Tag pairs for specific applications.
- To discuss limitations and future directions for Catcher/Tag systems.
Main Methods:
- Review of Catcher/Tag systems and their applications.
- Emphasis on the design principles of Catcher/Tag pairs.
- Analysis of current limitations, including pH sensitivity.
Main Results:
- Catcher/Tag systems are versatile tools for enzyme industry, vaccines, biomaterials, and cellular applications.
- Specific Catcher/Tag pairs have been designed for targeted uses.
- The pH sensitivity of these reactions is a key consideration.
Conclusions:
- Catcher/Tag systems represent a powerful method for protein conjugation.
- Further improvements in controlling ligation induction will expand their applications.
- This technology holds significant promise for future biotechnological innovations.
Related Concept Videos
Covalently Linked Protein Regulators
6.8K
Proteins can undergo many types of post-translational modifications, often in response to changes in their environment. These modifications play an important role in the function and stability of these proteins. Covalently linked molecules include functional groups, such as methyl, acetyl, and phosphate groups, and also small proteins, such as ubiquitin. There are around 200 different types of covalent regulators that have been identified.
These groups modify specific amino acids in a protein....
These groups modify specific amino acids in a protein....
6.8K
Ligand Binding and Linkage
4.8K
Allosteric proteins have more than one ligand binding site; the binding of a ligand to any of these sites influences the binding of ligands to the other sites. When a protein is allosteric, its binding sites are called coupled or linked. In the case of enzymes, the site that binds to the substrate is known as the active site and the other site is known as the regulatory site. When a ligand binds to the regulatory site, this leads to conformational changes in the protein that can influence...
4.8K
Conservative Site-specific Recombination and Phase Variation
6.0K
Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
The recognition sites for Cre recombinase called LoxP...
The recognition sites for Cre recombinase called LoxP...
6.0K
The Central Dogma
21.8K
The central dogma explains the flow of genetic information from DNA nucleotides to the amino acid sequence of proteins.
RNA is the Missing Link Between DNA and Proteins
In the early 1900s, scientists discovered that DNA stores all the information needed for cellular functions and that proteins perform most of these functions. However, the mechanisms of converting genetic information into functional proteins remained unknown for many years. Initially, it was believed that a single gene is...
RNA is the Missing Link Between DNA and Proteins
In the early 1900s, scientists discovered that DNA stores all the information needed for cellular functions and that proteins perform most of these functions. However, the mechanisms of converting genetic information into functional proteins remained unknown for many years. Initially, it was believed that a single gene is...
21.8K
Mechanical Protein Functions
4.9K
Proteins perform many mechanical functions in a cell. These proteins can be classified into two general categories- proteins that generate mechanical forces and proteins that are subjected to mechanical forces. Proteins providing mechanical support to the structure of the cell, such as keratin, are subjected to mechanical force, whereas proteins involved in cell movement and transport of molecules across cell membranes, such as an ion pump, are examples of generating mechanical force.
4.9K
Recombinant DNA
95.6K
Overview
95.6K


