文章基本信息

标题：Human transposon insertion profiling: Analysis, visualization and identification of somatic LINE-1 insertions in ovarian cancer
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作者：Zuojian Tang ; Jared P. Steranka ; Sisi Ma 等
期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：2017
卷号：114
期号：5
页码：E733-E740
DOI：10.1073/pnas.1619797114
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：Mammalian genomes are replete with interspersed repeats reflecting the activity of transposable elements. These mobile DNAs are self-propagating, and their continued transposition is a source of both heritable structural variation as well as somatic mutation in human genomes. Tailored approaches to map these sequences are useful to identify insertion alleles. Here, we describe in detail a strategy to amplify and sequence long interspersed element-1 (LINE-1, L1) retrotransposon insertions selectively in the human genome, transposon insertion profiling by next-generation sequencing (TIPseq). We also report the development of a machine-learning–based computational pipeline, TIPseqHunter, to identify insertion sites with high precision and reliability. We demonstrate the utility of this approach to detect somatic retrotransposition events in high-grade ovarian serous carcinoma.
关键词：retrotransposon ; TIPseq ; human ; LINE-1 ; ovarian cancer