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Transposon-host Interaction Using Sleeping Beauty Transposon As A Model System | 107103

Journal of Molecular Biomarkers & Diagnosis
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Transposon-host interaction using Sleeping Beauty transposon as a model system

Joint Event on 4th International Conference on Molecular Medicine and Diagnostics & 26th Cancer Genomics Congress: New Era for Cancer Prevention & International Conference on Biomarkers and Clinical Research

Anantharam Devaraj, Ahmed AL-Hakami, Manvendra Singh, Jiaxuan Wang, Zoltan Ivics, Zsuzsanna Izsvak and Harish C Chandramoorthy

King Khalid University, Saudi ArabiaKing Khalid University, Saudi ArabiaMax-Delbrück-Center for Molecular Medicine (MDC), GermanyPaul-Ehrlich-Institute, Germany

Posters & Accepted Abstracts: J Mol Biomark Diagn

Sleeping Beauty (SB) is a DNA transposon, a member of the Tc1/mariner-superfamily of transposable elements. It contains a single open reading frame encoding the SB transposase flanked by the Inverted Terminal Repeats (IRs), which are the recognition sites for the SB protein that catalyzes the transposition reaction via a ???cut & paste??? mechanism. Previous work has shown that the transcription of SB transposase is driven by its own promoter in its 5??? untranslated region (5??? UTR) region. Furthermore, an evolutionarily conserved host protein, HMG2L1, has been shown to up-regulate the transcriptional activity from the 5??? UTR of SB transposase by a protein-DNA interaction. We used the SB transposon system as a tool to study the transcriptional control of transposase expression in vertebrates. We have shown that SB transposon gets differentially regulated in germ cells and somatic cells, since we know that the insertions in germ cells are more likely to be passed to the next generation and therefore, transposons have a better chance to selfperpetuate. Hence, further experiments were focused on studying the differential expression of the host factor, HMG2L1, and as envisaged, the results showed that the expression of HMG2L1 is highly upregulated in germ cells compared to somatic cells. To summarize, we have presented an experimental proof for the direct involvement of host factor HMG2L1 in regulating the expression of the SB transposase, and that the cell specific expression of HMG2L1 controls the spatiotemporal expression of SB transposon.

Anantharam Devaraj is a molecular stem cell biologist with over a decade of experience. Anantharam worked on models from fly to mouse in reputed institutes and universities and made contributions by publishing more than 10 international papers in the area of stem cell and gene therapy. Very well-versed with use of transposons for genome editing. Anantharam did his PhD with DAAD fellowship in molecular genetics from Max-Delbrück Center under the supervision of Dr. Zsuzsanna Izsvak. After his PhD, Anantharam took up post-doctoral research position at Centre for Neural Circuits and Behavior, University of Oxford. At present, Anantharam is working as an Assistant Professor at King Khalid University, Abha, Saudi Arabia from December 2017. With his immense experience in understanding the key concepts of basic research and applied sciences, Anantharam is working in stem cell department to make the way for mesenchymal stem cells from bench to bed.

E-mail: [email protected]


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