Current Genetics

, Volume 38, Issue 2, pp 53–59

Expression of UMP1 is inducible by DNA damage and required for resistance of S. cerevisiae cells to UV light

Authors

  • Piotr Mieczkowski
    • Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5A, 02-106 Warsaw, Poland e-mail: esg@ibbrain.ibb.waw.pl
  • Wojtek Dajewski
    • Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5A, 02-106 Warsaw, Poland e-mail: esg@ibbrain.ibb.waw.pl
  • Agnieszka Podlaska
    • Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5A, 02-106 Warsaw, Poland e-mail: esg@ibbrain.ibb.waw.pl
  • Adrianna Skoneczna
    • Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5A, 02-106 Warsaw, Poland e-mail: esg@ibbrain.ibb.waw.pl
  • Zygmunt Ciesla
    • Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5A, 02-106 Warsaw, Poland e-mail: esg@ibbrain.ibb.waw.pl
  • E. Sledziewska-Gójska
    • Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5A, 02-106 Warsaw, Poland e-mail: esg@ibbrain.ibb.waw.pl
ORIGINAL PAPER

DOI: 10.1007/s002940000136

Cite this article as:
Mieczkowski, P., Dajewski, W., Podlaska, A. et al. Curr Genet (2000) 38: 53. doi:10.1007/s002940000136

Abstract

 It has recently been shown that the UMP1 gene of Saccharomyces cerevisiae encodes a small, short-lived protein engaged in 20S proteasome formation. The results presented in this paper demonstrate that UMP1 expression is induced by the DNA damaging agents methyl methanesulfonate (MMS) and UV light as well as by hydroxyurea (HU), an inhibitor of DNA replication. MMS induction of UMP1 expression occurs at the transcriptional level and is independent of the activity of the regulatory checkpoint kinases encoded by MEC1, RAD53 or DUN1. It is also shown that the disruption of UMP1 causes increased sensitivity of yeast cells to killing by UV radiation, but only slight sensitivity to HU treatment, and does not cause any increase in the killing effect of MMS.

Key words Saccharomyces cerevisiaeUMP1ProteasomeDIN genes

Copyright information

© Springer-Verlag Berlin Heidelberg 2000