RNA origami design tools enable cotranscriptional folding of kilobase-sized nanoscaffolds.

RNA origami design tools enable cotranscriptional folding of kilobase-sized nanoscaffolds.
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DOI:
10.1038/s41557-021-00679-1
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发表时间:
2021-06
期刊:
影响因子:
21.8
通讯作者:
Andersen ES
Andersen ES
中科院分区:
化学1区
文献类型:
--
作者:
Geary C;Grossi G;McRae EKS;Rothemund PWK;Andersen ES

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RNA origami is a framework for the modular design of nanoscaffolds that can be folded from a single strand of RNA, and used to organize molecular components with nanoscale precision. Design of genetically expressible RNA origami, which must cotranscriptionally fold, requires modeling and design tools that simultaneously consider thermodynamics, folding pathway, sequence constraints, and pseudoknot optimization. Here, we describe RNA Origami Automated Design software (ROAD), which builds origami models from a library of structural modules, identifies potential folding barriers, and designs optimized sequences. Using ROAD, we extend the scale and functional diversity of RNA scaffolds, creating 32 designs of up to 2360 nucleotides, five that scaffold two proteins, and seven that scaffold two small molecules at precise distances. Micrographic and chromatographic comparison of optimized and nonoptimized structures validates that our principles for strand routing and sequence design substantially improve yield. By providing efficient design of RNA origami, ROAD may simplify construction of custom RNA scaffolds for nanomedicine and synthetic biology.
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