Dataset underlying publication: De novo DNA-based catch bonds
![cc-by.png logo](/static/images/licenses/cc-by.png)
All primary chemical interactions weaken under mechanical stress, which imposes fundamental mechanical limits on the materials constructed from them. Biological materials combine plasticity with strength, for which nature has evolved a unique solution: catch bonds, supramolecular interactions that strengthen under tension. Biological catch bonds use force-gated conformational switches to convert weak bonds into strong ones. To date, catch bonds remain exclusive to nature, leaving their potential as mechano-adaptive elements in synthetic systems untapped. Here, we report the design and realization of artificial catch bonds. Starting from a minimal set of thermodynamic design requirements, we created a molecular motif capable of catch bonding. It consists of a DNA duplex featuring a cryptic domain that unfolds under tension to strengthen the interaction. We show that these catch bonds recreate force-enhanced rolling adhesion, a hallmark feature of biological catch bonds in bacteria and leukocytes. This work introduces catch bonds into the synthetic domain.
- 2023-07-10 first online, published, posted
- The work of Martijn van Galen is financially supported by VLAG Graduate School VLAG Graduate School
- Joris Sprakel, Annemarie Bok and Martijn van Galen are funded by the European Research Council (ERC) project CoG-CATCH (grant code CoG-CATCH) European Research Council
Physical Chemistry and Soft Matter, Wageningen University & Research
Laboratory of Organic Chemistry, Wageningen University & Research
DATA
-
14,016 bytesMD5:
ba2732a9a78af5815cae7b2779cd20f6
README.txt -
2,289,605 bytesMD5:
e2abe2fe077d38e9243fa229471b1a4b
Exp_FRET.zip -
69,506,652,626 bytesMD5:
740740b3aa6bf60e6db33b9831298f11
Exp_Rollingadhesion.zip -
2,420,672,803 bytesMD5:
fc23f8d8b86651ed82440b1de8650ea9
Sim_Moleculardynamics.zip -
1,242,099,177 bytesMD5:
e96517f26c7f7fc0b19ab1226ddc5b3c
Sim_Rollingadhesion.zip - download all files (zip)
73,171,728,227 bytes unzipped