Matrin 3 Augments the Transcriptional Activity of an SV40 Promoter-Mediated Luciferase Gene with a Highly Repetitive DNA Component
- *Corresponding Author:
- Yasuhide Hibino
Laboratory of Immunobiochemistry
Department of Clinical Dietetics and Human Nutrition
Faculty of Pharmaceutical Sciences, Josai University
1-1 Keyakidai Sakado, Saitama 350-0295, Japan
Tel: +81 49 271 7285
Fax: +81 49 271 7284
E-mail: [email protected]
Received Date: September 29, 2014; Accepted Date: November 20, 2014; Published Date: November 28, 2014
Citation: Kamiuchi S, Fukaya M, Usui T, Iwata N, Okazaki M, et al. (2014) Matrin 3 Augments the Transcriptional Activity of an SV40 Promoter- Mediated Luciferase Gene with a Highly Repetitive DNA Component. J Mol Genet Med 8:146. doi:10.4172/1747-0862.1000146
Copyright: ©2014 Kamiuchi S, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
We examined the transcriptional augmentation of matrin 3, a nuclear matrix protein, of the SV40 promotermediated luciferase gene (pGL3) following transient transfection of recombinant plasmids into cells. It has been reported that the interaction of the Xmn I fragment, a highly repetitive DNA component as one of a typical matrix- or scaffold-attachment regions (MAR/SAR) tethered upstream from the SV40 promoter (pGL3-Xmn I) with matrin 3 appeared to be required for augmentation of luciferase gene transcription. In this study, we investigated the levels of induction in cells overexpressing the wild type and several deletion mutants of matrin 3. It appeared that pGL3-Xmn I augmented luciferase production to 4-times the control level in Ac2F cells, but 23-fold in cells overexpressing matrin 3. Electrophoretic mobility shift assay showed that the Xmn I fragment augmented luciferase gene transcription through interaction with matrin 3. Furthermore, our findings suggest that all of the functional domains tested in matrin 3 were necessary for transcriptional augmentation. We aim not only to describe the transcriptional augmentation of matrin 3 with MAR/SAR, but also to strengthen interest in their use to mediate the expression of therapeutic transgenes.