Polymorphic design of DNA origami structures through mechanical control of modular components

Chanseok Lee, Jae Young Lee and Do-Nyun Kim ()
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Chanseok Lee: Seoul National University
Jae Young Lee: Seoul National University
Do-Nyun Kim: Seoul National University

Nature Communications, 2017, vol. 8, issue 1, 1-8

Abstract: Abstract Scaffolded DNA origami enables the bottom-up fabrication of diverse DNA nanostructures by designing hundreds of staple strands, comprised of complementary sequences to the specific binding locations of a scaffold strand. Despite its exceptionally high design flexibility, poor reusability of staples has been one of the major hurdles to fabricate assorted DNA constructs in an effective way. Here we provide a rational module-based design approach to create distinct bent shapes with controllable geometries and flexibilities from a single, reference set of staples. By revising the staple connectivity within the desired module, we can control the location, stiffness, and included angle of hinges precisely, enabling the construction of dozens of single- or multiple-hinge structures with the replacement of staple strands up to 12.8% only. Our design approach, combined with computational shape prediction and analysis, can provide a versatile and cost-effective procedure in the design of DNA origami shapes with stiffness-tunable units.

Date: 2017
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DOI: 10.1038/s41467-017-02127-6

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