title: Preparation of Small RNAs Using Rolling Circle Transcription and Site-Specific RNA Disconnection.
abstract: A facile and robust RNA preparation protocol was developed by combining rolling circle transcription (RCT) with RNA cleavage by RNase H. Circular DNA with a complementary sequence was used as the template for promoter-free transcription. With the aid of a 2'-O-methylated DNA, the RCT-generated tandem repeats of the desired RNA sequence were disconnected at the exact end-to-end position to harvest the desired RNA oligomers. Compared with the template DNA, more than 4 × 10(3) times the amount of small RNA products were obtained when modest cleavage was carried out during transcription. Large amounts of RNA oligomers could easily be obtained by simply increasing the reaction volume.
authors.affiliation: College of Food Science and Engineering, Ocean University of China, Shandong, China.
authors.forename: Xingyu
authors.initials: X
authors.lastname: Wang
authors.affiliation: College of Food Science and Engineering, Ocean University of China, Shandong, China.
authors.forename: Can
authors.initials: C
authors.lastname: Li
authors.affiliation: College of Food Science and Engineering, Ocean University of China, Shandong, China.
authors.forename: Xiaomeng
authors.initials: X
authors.lastname: Gao
authors.affiliation: College of Food Science and Engineering, Ocean University of China, Shandong, China.
authors.forename: Jing
authors.initials: J
authors.lastname: Wang
authors.affiliation: College of Food Science and Engineering, Ocean University of China, Shandong, China.
authors.forename: Xingguo
authors.initials: X
authors.lastname: Liang