Here, we present the 2.5 Å structure of apo-ArgR from Bacillus stearothermophilus and the 2.2 Å structure of the hexameric ArgR oligomerization domain with bound arginine. This first view of ...

A mutant population of catalase I from Bacillus stearothermophilus prepared by this method has a diversity in thermostability and enzyme activity equal to that obtained after random point mutagenesis.