title: Guide DNA technique in bacterial ribonuclease P reaction for effective processing of tRNA precursor.
abstract: Previously, we found that a small (approx. 20-mer) DNA hybridizing to the 5'-leader region of a tRNA precursor enhances the cleavage efficiency in bacterial ribonuclease P reaction. We named this technique the 'guide DNA technique'. Detailed analyses showed that the length of the guide DNA, concentration of the guide DNA and the hybridizing position affected the cleavage efficiency: for an effective cleavage reaction, guide DNA should be designed to hybridize to the region on the cleavage site, should be 20 bases or more in length and should be of high concentration. The presence of a 5'-flanking region in the DNA did not affect the cleavage reaction. The guide DNA technique is a useful tool for effective preparation of mature tRNA molecules in vitro.
authors.affiliation: Division of Bioscience and Biotechnology, Department of Ecological Engineering, Toyohashi University of Technology, Tempaku-cho, Toyohashi, Aichi 441-8580, Japan. tanakat@eco.tut.ac.jp
authors.forename: Terumichi
authors.initials: T
authors.lastname: Tanaka
authors.forename: Yoshiaki
authors.initials: Y
authors.lastname: Hori
authors.forename: Yo
authors.initials: Y
authors.lastname: Kikuchi
mesh_terms: D000818:Animals; D001483:Base Sequence; D004247:DNA / Q000737:chemistry*; D004331:Drosophila melanogaster / Q000235:genetics; D004722:Endoribonucleases / Q000737:chemistry* / Q000378:metabolism; D004926:Escherichia coli / Q000235:genetics / Q000378:metabolism; D029968:Escherichia coli Proteins; D005786:Gene Expression Regulation; D046911:Macromolecular Substances; D008969:Molecular Sequence Data; D009690:Nucleic Acid Conformation; D009693:Nucleic Acid Hybridization / Q000379:methods*; D015345:Oligonucleotide Probes / Q000737:chemistry*; D012322:RNA Precursors / Q000737:chemistry*; D012329:RNA, Bacterial / Q000737:chemistry; D016337:RNA, Catalytic / Q000737:chemistry* / Q000378:metabolism; D012343:RNA, Transfer / Q000138:chemical synthesis*; D012016:Reference Values; D043262:Ribonuclease P; D014158:Transcription, Genetic
chemical_list: D029968:Escherichia coli Proteins; D046911:Macromolecular Substances; D015345:Oligonucleotide Probes; D012322:RNA Precursors; D012329:RNA, Bacterial; D016337:RNA, Catalytic; D004247:DNA; D012343:RNA, Transfer; D004722:Endoribonucleases; D043262:Ribonuclease P; C470865:ribonuclease P, E coli