Reference: Kobayashi N and McEntee K (1990) Evidence for a heat shock transcription factor-independent mechanism for heat shock induction of transcription in Saccharomyces cerevisiae. Proc Natl Acad Sci U S A 87(17):6550-4

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Abstract


Transcription of the DNA damage-responsive gene, DDRA2, of Saccharomyces cerevisiae is activated by heat shock treatment as well as by mutagen/carcinogen exposure. Deletion analysis of upstream noncoding sequence indicated that sequences between approximately -190 and -140 base pairs were necessary for heat shock and DNA damage regulation of transcription. Fusion of this region to a CYC1-lacZ reporter gene demonstrated that the sequence between -202 and -165 base pairs was sufficient for basal level and heat shock-induced expression. This DNA sequence was unable to bind heat shock transcription factor as judged by binding competition experiments in vitro. These results indicate that yeast possesses a second, heat shock transcription factor-independent mechanism for activating transcription in response to thermal stress.

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Journal Article | Research Support, Non-U.S. Gov't | Research Support, U.S. Gov't, Non-P.H.S. | Research Support, U.S. Gov't, P.H.S.
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Kobayashi N, McEntee K
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