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  • Title: Base excision repair in the thermophile Thermus sp. strain X-1.
    Author: Warner HR.
    Journal: J Bacteriol; 1983 Jun; 154(3):1451-4. PubMed ID: 6153063.
    Abstract:
    The thermophile Thermus sp. strain X-1, grown at 70 degrees C, contains uracil-DNA glycosylase and apurinic endonuclease activities, both of which are known to have roles in the repair of DNA damaged by heat. Both of these activities have temperature optima of about 70 degrees C. However, neither of these activities is present in quantities significantly greater than that found in Escherichia coli grown at 37 degrees C. Therefore, it appears that thermophilic organisms may not contain greatly elevated levels of the enzymes thought to be involved in the repair of DNA damaged by heat.
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