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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Scheifele, Lisa Z. Martínez-murillo, Francisco Wheelan, Sarah J. Irizarry, Rafael A. Boeke, Jef D. |
| Description | Author Affiliation: Wheelan SJ ( High Throughput Biology Center and Department of Molecular Biology and Genetics, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.); |
| Abstract | Mobile elements are important components of our genomes, with diverse and significant effects on phenotype. Not only can transposons inactivate genes by direct disruption and shuffle the genome through recombination, they can also alter gene expression subtly or powerfully. Currently active transposons are highly polymorphic in host populations, including, among hundreds of others, L1 and Alu elements in humans and Ty1 elements in yeast. For this reason, we wished to develop a simple genome-wide method for identifying all transposons in any given sample. We have designed a transposon insertion site profiling chip (TIP-chip), a microarray intended for use as a high-throughput technique for mapping transposon insertions. By selectively amplifying transposon flanking regions and hybridizing them to the array, we can locate all transposons present in a sample. We have tested the TIP-chip extensively to map Ty1 retrotransposon insertions in yeast and have achieved excellent results in two laboratory strains as well as in evolved Ty1 high-copy strains. We are able to identify all of the theoretically detectable transposons in the FY2 lab strain, with essentially no false positives. In addition, we mapped many new transposon copies in the high-copy Ty1 strain and determined its Ty1 insertion pattern. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 47 |
| Volume Number | 103 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 2006-11-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | DNA Transposable Elements Gene Expression Profiling Oligonucleotide Array Sequence Analysis Animals Instrumentation Genome Molecular Sequence Data Mutagenesis, Insertional Retroelements Genetics Saccharomyces Cerevisiae Sequence Analysis, DNA Research Support, N.I.H., Extramural Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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