Publication Date:
2011-04-16
Description:
We present a strategy to design and construct self-assembling DNA nanostructures that define intricate curved surfaces in three-dimensional (3D) space using the DNA origami folding technique. Double-helical DNA is bent to follow the rounded contours of the target object, and potential strand crossovers are subsequently identified. Concentric rings of DNA are used to generate in-plane curvature, constrained to 2D by rationally designed geometries and crossover networks. Out-of-plane curvature is introduced by adjusting the particular position and pattern of crossovers between adjacent DNA double helices, whose conformation often deviates from the natural, B-form twist density. A series of DNA nanostructures with high curvature--such as 2D arrangements of concentric rings and 3D spherical shells, ellipsoidal shells, and a nanoflask--were assembled.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Han, Dongran -- Pal, Suchetan -- Nangreave, Jeanette -- Deng, Zhengtao -- Liu, Yan -- Yan, Hao -- New York, N.Y. -- Science. 2011 Apr 15;332(6027):342-6. doi: 10.1126/science.1202998.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉The Biodesign Institute, Arizona State University, Tempe, AZ 85287, USA. dongran.han@asu.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/21493857" target="_blank"〉PubMed〈/a〉
Keywords:
DNA/*chemistry
;
Models, Molecular
;
*Nanostructures
;
Nanotechnology
;
*Nucleic Acid Conformation
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
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