USMLE Forum Archives - USMLE Step 1 - 25
25
drspleen - 03-15-11 00:06
Bacteria are known to upregulate the transcription of certain genes when exposed to elevated temperatures. The heat shock response element is one transcription factor responsible. Where does this protein bind?
* A. Cis response element sequence
* B. Trans operator sequence
* C. Cis enhancer sequence
* D. Cis promoter sequence
* E. Trans promoter sequence
drspleen - 03-15-11 00:06
Bacteria are known to upregulate the transcription of certain genes when exposed to elevated temperatures. The heat shock response element is one transcription factor responsible. Where does this protein bind?
* A. Cis response element sequence
* B. Trans operator sequence
* C. Cis enhancer sequence
* D. Cis promoter sequence
* E. Trans promoter sequence
The correct answer and explanation will be available after you answer.
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#1
Re: 25 babbu5508 - 03-19-11 14:03 My answer is: e.
Heat shock proteins function as intra-cellular chaperones for other proteins. They play an important role in protein-protein interactions such as folding and assisting in the establishment of proper protein conformation (shape) and prevention of unwanted protein aggregation.
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