Transgenic Research

, Volume 19, Issue 4, pp 691–701

Widespread expression of the Supv3L1 mitochondrial RNA helicase in the mouse

  • Erin Paul
  • Marissa Kielbasinski
  • John M. Sedivy
  • Carlos Murga-Zamalloa
  • Hemant Khanna
  • Jan E. Klysik
Brief Communication

DOI: 10.1007/s11248-009-9346-0

Cite this article as:
Paul, E., Kielbasinski, M., Sedivy, J.M. et al. Transgenic Res (2010) 19: 691. doi:10.1007/s11248-009-9346-0

Abstract

Supv3L1 is an evolutionarily conserved helicase that plays a critical role in the mitochondrial RNA surveillance and degradation machinery. Conditional ablation of Supv3L1 in adult mice leads to premature aging phenotypes including loss of muscle mass and adipose tissue and severe skin abnormalities. To get insights into the spatial and temporal expression of Supv3L1 in the mouse, we generated knock-in and transgenic strains in which an EGFP reporter was placed under control of the Supv3L1 native promoter. During development, expression of Supv3L1 begins at the blastocyst stage, becomes widespread and strong in all fetal tissues and cell types, and continues during postnatal growth. In mature animals reporter expression is only slightly diminished in most tissues and continues to be highly expressed in the brain, peripheral sensory organs, and testis. Together, these data confirm that Supv3L1 is an important developmentally regulated gene, which continues to be expressed in all mature tissues, particularly the rapidly proliferating cells of testes, but also in the brain and sensory organs. The transgenic mice and cell lines derived from them constitute a valuable tool for the examination of the spatial and temporal aspects of Supv3L1 promoter activity, and should facilitate future screens for small molecules that regulate Supv3L1 expression.

Keywords

Supv3L1 Suv3 Mouse Expression pattern Retina EGFP reporter 

Copyright information

© Springer Science+Business Media B.V. 2009

Authors and Affiliations

  • Erin Paul
    • 1
  • Marissa Kielbasinski
    • 1
  • John M. Sedivy
    • 1
  • Carlos Murga-Zamalloa
    • 2
  • Hemant Khanna
    • 2
  • Jan E. Klysik
    • 1
    • 3
  1. 1.Department of Molecular Biology, Cell Biology and BiochemistryBrown UniversityProvidenceUSA
  2. 2.Department of Ophthalmology and Visual SciencesUniversity of MichiganAnn ArborUSA
  3. 3.Division of Biology and MedicineBrown UniversityProvidenceUSA

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