Cellular inhibitors of long interspersed element 1 and Alu retrotransposition.

Journal Article (Journal Article)

Long interspersed element (LINE) 1 retrotransposons are major genomic parasites that represent approximately 17% of the human genome. The LINE-1 ORF2 protein is also responsible for the mobility of Alu elements, which constitute a further approximately 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.

Full Text

Duke Authors

Cited Authors

  • Bogerd, HP; Wiegand, HL; Hulme, AE; Garcia-Perez, JL; O'Shea, KS; Moran, JV; Cullen, BR

Published Date

  • June 6, 2006

Published In

Volume / Issue

  • 103 / 23

Start / End Page

  • 8780 - 8785

PubMed ID

  • 16728505

Pubmed Central ID

  • PMC1482655

International Standard Serial Number (ISSN)

  • 0027-8424

Digital Object Identifier (DOI)

  • 10.1073/pnas.0603313103


  • eng

Conference Location

  • United States