Date of Award

12-20-2009

Degree Type

Thesis

Degree Name

M.S.

Degree Program

Biological Sciences

Department

Biological Sciences

Major Professor

Clancy, Mary J.; Liu, Zhengchang

Second Advisor

Schluchter, Wendy

Abstract

Genome transcription is much more widespread than has been traditionally thought because our view of a "gene" or "transcription unit" has changed dramatically over the past 4 to 5 years with the identification of many different non-coding ribonucleic acids. In the yeast, Saccharomyces cerevisiae, meiosis and sporulation are an important part of the life cycle and IME4 gene expression is required for these processes. IME4 sense transcript levels of expression are influenced by the level of its complementary non-coding antisense strand by mechanisms that are currently unknown. The a1-alpha2 heterodimer binding in the downstream 3' region of IME4 is one component required for repression of IME4 antisense transcription. However, this thesis shows that the general regulatory protein Reb1 is also required in this system. Reb1 involvement is most likely to create a nucleosome-free zone in the promoter region of the IME4 antisense strand therefore contributing to transcription.

Rights

The University of New Orleans and its agents retain the non-exclusive license to archive and make accessible this dissertation or thesis in whole or in part in all forms of media, now or hereafter known. The author retains all other ownership rights to the copyright of the thesis or dissertation.

Share

COinS