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Volume 53, Number 3-4 >

A rapid and simple Transcriptional sequencing method for GC-rich DNA regions

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Title: A rapid and simple Transcriptional sequencing method for GC-rich DNA regions
Authors: Izawa, Masaki Browse this author
Kitamura, Nobuo Browse this author
Odake, Nanae Browse this author
Maki, Fuminori Browse this author
Kanehira, Kaoru Browse this author
Nemoto, Hideyuki Browse this author
Yamaguchi, Mitsuyo Browse this author
Yamashita, Atsushi Browse this author
Sasaki, Nobuya Browse this author →KAKEN DB
Hattori, Masahira Browse this author
Kanayama, Shinji Browse this author
Yoneda, Yuko Browse this author
Keywords: DNA sequencing
Transcriptional sequencing
Multiple displacement amplification
Issue Date: 28-Feb-2006
Publisher: The Graduate School of Veterinary Medicine, Hokkaido University
Journal Title: Japanese Journal of Veterinary Research
Volume: 53
Issue: 3-4
Start Page: 159
End Page: 168
Abstract: In genome sequencing project, we encounter the DNA regions that often contain stable secondary structure with high GC content. These regions are difficult to not only amplify by PCR for template preparations, but also determine the DNA sequences using standard Cycle sequencing(CS)method. Transcriptional sequencing(TS)is a unique DNA sequencing method using RNA polymerase, and is based on the principles of the chain-termination method, which is a powerful method to analyze GC-rich sequences. In this study, we examined the multiple displacement amplification(MDA)to overcome low efficiency of PCR amplification in GC-rich regions and subjected to TS reaction. Combination of MDA and TS(MDA-TS)was extremely successful with GC content ranging from 65% to 85%,which are difficult to analyze with PCR and CS. We also report plasmid vector, pTS1,which has the stronger T7and T3 promoters than those of conventional vectors, and the sequence that decreases transcriptional efficiency was removed from its multiple cloning sites. pTS1 resulted in the improved sequencing accuracy and reduced reaction time up to 5min. These results showed that MDA-TS is a rapid and accurate method for the analysis of GC-rich templates.
Type: bulletin (article)
Appears in Collections:Japanese Journal of Veterinary Research > Volume 53, Number 3-4

Submitter: 獣医学部図書室

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