Title
Cellular inhibitors of long interspersed element 1 and Alu retrotransposition
Abstract
Long interspersed element (LINE) 1 retrotransposons are major genomic parasites that represent ≈17% of the human genome. The LINE-1 ORF2 protein is also responsible for the mobility of Alu elements, which constitute a further ≈11% of genomic DNA. Representative members of each element class remain mobile, and deleterious retrotransposition events can induce spontaneous genetic diseases. Here, we demonstrate that APOBEC3A and APOBEC3B, two members of the APOBEC3 family of human innate antiretroviral resistance factors, can enter the nucleus, where LINE-1 and Alu reverse transcription occurs, and specifically inhibit both LINE-1 and Alu retrotransposition. These data suggest that the APOBEC3 protein family may have evolved, at least in part, to defend the integrity of the human genome against endogenous retrotransposons.
Document Type
Article
DOI
https://doi.org/10.1073/pnas.0603313103
Keywords
APOBEC3 protein, mutagenesis, retrotransposon, genome stability, intrinsic immunity
Publication Date
2006
Recommended Citation
Bogerd, Hal P., Heather L. Wiegand, Amy E. Hulme, José L. Garcia-Perez, K. Sue O’Shea, John V. Moran, and Bryan R. Cullen. "Cellular inhibitors of long interspersed element 1 and Alu retrotransposition." Proceedings of the National Academy of Sciences 103, no. 23 (2006): 8780-8785.
Journal Title
Proceedings of the National Academy of Sciences
