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. 2001 Aug 15;15(16):2134–2145. doi: 10.1101/gad.894801

Figure 4.

Figure 4

The HSF1 loop dictates preferential activation from an extended (heat shock element) HSE in yeast. (A) Cartoon illustration of the arrangement of HSE repeats in the SSA3 and CUP1 gene promoters. (B) RNA levels for lacZ or ACT1 were measured by RNase protection assays using RNA isolated from control (C) or heat-shocked (HS; 40°C for 15 min) yeast expressing the indicated mouse heat shock transcription factor (HSF). The abbreviations for the HSF chimeras are identical to those described in the Figure 1 legend.