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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Zhao, Dongyan Ferguson, Ann Jiang, Ning |
| Description | Author Affiliation: Zhao D ( Department of Horticulture, Michigan State University, East Lansing, Michigan 48824.); Ferguson A ( Department of Horticulture, Michigan State University, East Lansing, Michigan 48824.); Jiang N ( Department of Horticulture, Michigan State University, East Lansing, Michigan 48824 jiangn@msu.edu.) |
| Abstract | Mutator-like transposable elements (MULEs) are widespread in plants and are well known for their high transposition activity as well as their ability to duplicate and amplify host gene fragments. Despite their abundance and importance, few active MULEs have been identified. In this study, we demonstrated that a rice (Oryza sativa) MULE, Os3378, is capable of excising and reinserting in yeast (Saccharomyces cerevisiae), suggesting that yeast harbors all the host factors for the transposition of MULEs. The transposition activity induced by the wild-type transposase is low but can be altered by modification of the transposase sequence, including deletion, fusion, and substitution. Particularly, fusion of a fluorescent protein to the transposase enhanced the transposition activity, representing another approach to manipulate transposases. Moreover, we identified a critical region in the transposase where the net charge of the amino acids seems to be important for activity. Finally, transposition efficiency is also influenced by the element and its flanking sequences (i.e., small elements are more competent than their large counterparts). Perfect target site duplication is favorable, but not required, for precise excision. In addition to the potential application in functional genomics, this study provides the foundation for further studies of the transposition mechanism of MULEs. |
| File Format | HTM / HTML |
| ISSN | 10404651 |
| e-ISSN | 1531298X |
| DOI | 10.1105/tpc.114.128488 |
| Journal | THE PLANT CELL ONLINE |
| Issue Number | 1 |
| Volume Number | 27 |
| Language | English |
| Publisher | American Society of Plant Biologists |
| Publisher Date | 2015-01-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Discipline Botany Oryza Sativa Metabolism Plant Proteins Saccharomyces Cerevisiae Dna Transposable Elements Genetics Research Support, U.s. Gov't, Non-p.h.s. |
| Content Type | Text |
| Resource Type | Article |
| Subject | Cell Biology Plant Science |
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