title: Regulation of the structure of RNA assemblies through RNA tertiary interactions.
abstract: We have previously shown that RNA building blocks containing two or three stem-loops based on the dimerization initiation site (DIS) connected by short linkers can be assembled into various one- and two-dimensional structures. Here, in an attempt to regulate the conformation of the RNA assemblies by adjusting the rigidity of the RNA building block, we have introduced the triple-helical scaffold (THS) into the linker region connecting two DIS-based stem-loops. As a result, linear and circular assemblies could be selectively formed with RNA building blocks containing the wild-type and mutant THS sequences, respectively. The results demonstrate how the conformation of RNA assemblies may be regulated by external factors, thereby expanding the utility of RNA-based nanostructures.
authors.affiliation: Department of Life Science, Tokyo Gakugei University, Koganei, Tokyo 184-8501, Japan.
authors.forename: Rei
authors.initials: R
authors.lastname: Ohmori
authors.forename: Seiko
authors.initials: S
authors.lastname: Hakozaki
authors.forename: Kazuo
authors.initials: K
authors.lastname: Harada
mesh_terms: D019281:Dimerization; D008274:Magnesium / Q000737:chemistry; D009690:Nucleic Acid Conformation; D012313:RNA / Q000737:chemistry*; D000079962:RNA, Circular
chemical_list: D000079962:RNA, Circular; D012313:RNA; D008274:Magnesium