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    Curr Genet. 1996 Jan;29(2):103-5.

    yAP-1- and yAP-2-mediated, heat shock-induced transcriptional activation of the multidrug resistance ABC transporter genes in Saccharomyces cerevisiae.

    Miyahara K, Hirata D, Miyakawa T.

    Department of Fermentation Technology, Hiroshima University, Japan.

    We have examined whether the stress-induced transcriptional activation of YDR1/PDR5/STS1 is mediated by yAP-1 and yAP-2. Of the stresses examined, heat shock-induced, rapid and transient PDR5 expression became very low in a yap1 yap2 double-gene disruptant, indicating that the yAP proteins mediate the response. Similar results were obtained with SNQ2, a close homologue of PDR5. A set of 5'-truncation derivatives of the PDR5 gene identified the region from -484 to -434 as being sufficient for the response. A sequence similar to the yAP-1 recognition element recently identified in the stress-responsive yeast genes was found in this region and in the 5'-flanking sequences of SNQ2.

    PMID: 8821655 [PubMed - indexed for MEDLINE]

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