Catalyzing "hot" reactions: enzymes from hyperthermophilic Archaea.


We reflect on some of our studies on the hyperthermophilic archaeon, Thermococcus kodakaraensis KOD1 and its enzymes. The strain can grow at temperatures up to the boiling point and also represents one of the simplest forms of life. As expected, all enzymes displayed remarkable thermostability, and we have determined some of the basic principles that govern this feature. To our delight, many of the enzymes exhibited unique biochemical properties and novel structures not found in mesophilic proteins. Here, we focus on a few enzymes that are useful in application, and whose three-dimensional structures are characteristic of thermostable enzymes.



Kinetic Parameters, Structure and Structure/Function, Nucleotide Incorporation, Exonuclease Activity


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