Characterization of L1 retrotransposition with high-throughput dual-luciferase assays
Open accessAbstract
Recent studies employing genome-wide approaches have provided an unprecedented view of the scope of L1 activities on structural variations in the human genome, and further reinforced the role of L1s as one of the major driving forces behind human genome evolution. The rapid identification of novel L1 elements by these high-throughput approaches demands improved L1 functional assays. However, the existing assays use antibiotic selection markers or fluorescent proteins as reporters; neither is amenable to miniaturization. To increase assay sensitivity and throughput, we have developed a third generation assay by using dual-luciferase reporters, in which firefly luciferase is used as the retrotransposition indicator and Renilla luciferase is encoded on the same or separate plasmid for normalization. This novel assay is highly sensitive and has a broad dynamic range. Quantitative data with high signal-to-noise ratios can be obtained from 24- up to 96-well plates in 2-4 days after transfection. Using the dual-luciferase assays, we have characterized profiles of retrotransposition by various human and mouse L1 elements, and detailed the kinetics of L1 retrotransposition in cultured cells. Its high-throughput and short assay timeframe make it well suited for routine tests as well as large-scale screening efforts.
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pWA366 contains L1RP(JM111), a mutated element carrying two missense mutations in ORF1 that is unable to retrotranspose.
“pWA355 contains a functional, active L1RP element, whereas pWA366 contains L1RP(JM111), a mutated element carrying two missense mutations in ORF1 that is unable to retrotranspose.”
From L1 drives IFN in senescent cells and promotes age-associated inflammation (2019) · cites this paper as Xie et al. (2011)52
pWA355 contains a functional, active L1RP element.
“pWA355 contains a functional, active L1RP element, whereas pWA366 contains L1RP(JM111), a mutated element carrying two missense mutations in ORF1 that is unable to retrotranspose.”
From L1 drives IFN in senescent cells and promotes age-associated inflammation (2019) · cites this paper as Xie et al. (2011)52
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Cites
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Self-citation
- Authors
- Xie, Y., Rosser, J. M., Thompson, T. L., Boeke, J. D., & An, W.
- Affiliations
- Johns Hopkins University (US)
- Corresponding author
- An, Wenfeng
- Venue
- Nucleic Acids Research
- Publisher
- Oxford University Press (OUP)
- Published
- 2010-11-10
- Volume
- 39
- Issue
- 3
- Pages
- e16-e16
- ISSN
- 0305-1048 (ISSN-L)
- 1362-4962
- PMC
- PMC3035435
- OpenAlex
- W2115594110
- Cited by
- 98
- References
- 3
- Citations by year
- 2026: 1 · 2025: 7 · 2024: 4 · 2023: 5 · 2022: 12 · 2021: 14 · 2020: 10 · 2019: 6 · 2018: 7 · 2017: 7 · 2016: 9 · 2015: 7 · 2014: 2 · 2013: 4 · 2012: 2
- FWCI
- 2.69
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Licence
- Locations
- Nucleic Acids Research (publishedVersion, cc-by-nc)
- PubMed Central (publishedVersion, cc-by-nc)
- PubMed (publishedVersion)
- Funders
- Washington State University
- National Cancer Institute (P01CA16519, P01CA016519)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Chromosomal and Genetic Variations
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genomic variations and chromosomal abnormalities
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genome Rearrangement Algorithms
- Keywords
- L1 retrotransposition, long interspersed nuclear elements, dual-luciferase reporter assay, firefly luciferase, Renilla luciferase, structural variants, human genome evolution, high-throughput functional assay, miniaturization
- MeSH terms
- Animals, Genetic Vectors, HeLa Cells, Humans, Introns, Kinetics, Miniaturization, Promoter Regions, Genetic, Genes, Reporter, Reverse Transcriptase Inhibitors, Long Interspersed Nucleotide Elements, Luminescent Agents, Luciferases, Firefly, Luciferases, Renilla, Mice
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