Renaturation of Bacillus thermoglucosidasius HrcA repressor by DNA and thermostability of the HrcA-DNA complex in vitro.


HrcA, a negative control repressor for chaperone expression from the obligate thermophile Bacillus thermoglucosidasius KP1006, was purified in a His-tagged form in the presence of 6 M urea but hardly renatured to an intact state due to extreme insolubility. Renaturation trials revealed that the addition of DNA to purified B. thermoglucosidasius HrcA can… (More)


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