Related Experiment Video
Updated: Feb 23, 2026
12:07
Three-dimensional Biomimetic Technology: Novel Biorubber Creates Defined Micro- and Macro-scale Architectures in Collagen Hydrogels
Published on: February 12, 2016
9.8K
Rigidly connected multispecific artificial binders with adjustable geometries.
Yufan Wu1,2, Alexander Batyuk1,3, Annemarie Honegger1
1Department of Biochemistry, University of Zürich, Winterthurerstrasse 190, CH-8057, Zürich, Switzerland.
Scientific Reports
|September 13, 2017
Summary
Researchers developed rigid, multivalent scaffolds using Designed Ankyrin Repeat Proteins (DARPins). These novel protein constructs enable precise control over molecular interactions and biological activities by linking multiple binding units without flexible linkers.
Area of Science:
- Protein engineering
- Biochemistry
- Structural biology
Background:
- Multivalent binding proteins offer enhanced biological activities by engaging multiple targets.
- Existing methods often rely on flexible linkers, which can limit precise control over molecular interactions.
Purpose of the Study:
- To develop a method for constructing rigid, multivalent, and multispecific protein scaffolds.
- To create novel protein architectures using Designed Ankyrin Repeat Proteins (DARPins) with predefined geometries.
Main Methods:
- Utilized the modular nature of the Ankyrin-repeat protein scaffold to create DARPins as binding units.
- Redesigned capping repeats to form rigid connector modules, enabling the assembly of DARPins without flexible linkers.
- Designed and characterized nine distinct connector modules, with eight structures confirmed by X-ray crystallography.
Main Results:
- Successfully demonstrated a method to build rigid multivalent and multispecific scaffolds.
- The designed connector modules allowed joining of DARPins in predefined geometries without compromising binding affinity or specificity.
- All bispecific constructs were capable of simultaneously binding both target proteins.
Conclusions:
- This approach provides a versatile platform for creating precisely engineered protein constructs.
- The rigid scaffolds offer enhanced control over molecular interactions and potential for novel biological activities.
- The DARPin-based modular system facilitates the design of complex, tailored protein architectures.
