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Published on: January 12, 2021
Engineering repeat proteins of the immune system
Jennifer P McCord1, Tijana Z Grove1,2
1Department of Chemistry, Virginia Polytechnic Institute and State University, Blacksburg, VA, U.S.A.
Novel repeat proteins inspired by the immune system offer new tools for targeting glycans and glycoproteins. These stable, monomeric scaffolds address limitations of traditional immunoglobulin-based binders in research and biomedicine.
Area of Science:
- Biomolecular Engineering
- Protein Science
- Glycobiology
Background:
- Immunoglobulins face limitations as binding scaffolds.
- Repeat proteins are promising, but typically bind proteins/peptides.
- Immune system repeat proteins inspire novel biomolecule binders.
Purpose of the Study:
- To explore immune system-inspired repeat proteins as versatile binding scaffolds.
- To address the need for tools targeting glycans and glycoproteins.
- To overcome limitations of existing protein scaffolds.
Main Methods:
- Design and engineering of novel repeat protein scaffolds.
- Characterization of binding properties against various biomolecules.
- Evaluation of stability and binding modes.
Main Results:
- Demonstrated stability and monomeric binding mode of engineered repeat proteins.
- Successful targeting of glycans and glycoproteins.
- Elongated and variable binding surfaces identified.
Conclusions:
- Immune system-inspired repeat proteins are effective scaffolds for glycans and glycoproteins.
- These novel scaffolds fill a critical gap in research and biomedical tools.
- Engineered repeat proteins offer a stable, versatile alternative to immunoglobulins.
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