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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Evans, J. P. Palmiter, R. D. |
| Description | Author Affiliation: Evans JP ( Department of Medical Genetics, Howard Hughes Medical Institute, University of Washington, Seattle 98195.); |
| Abstract | Long interspersed elements (LINEs) of the L1 family represent a major class of mammalian repetitive DNA and are present at copy numbers of between 10(4) and 10(5) elements per genome. Structural similarities between L1 elements and known retrotransposons have led to the suggestion that a subset of L1 elements may function as mobile genetic elements and have thus gained their prominent place in the mammalian genome. We describe a consensus mouse L1 element that was tagged with a heterologous intron and shown to transpose by way of an RNA intermediate when transfected into baby hamster kidney cells, formally establishing L1 elements as retrotransposons. When the putative reverse transcriptase-encoding region of this L1 element was deleted, the element still underwent retrotransposition in hamster cells, suggesting that reverse transcriptase activity can be supplied by an endogenous enzyme. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 19 |
| Volume Number | 88 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1991-10-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | DNA Transposable Elements Mice Genetics Repetitive Sequences, Nucleic Acid Retroviridae Animals Blotting, Southern Cricetinae Gene Expression Genetic Complementation Test Polymerase Chain Reaction Promoter Regions, Genetic RNA Metabolism Restriction Mapping Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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