Composition and methods for the expression of recombinant DNA polymerase enzymes derived from Bacillus stearothermophilus. The present invention also concerns methods for purifying recombinant Bst DNA polymerase enzymes, compositions containing the purified enzymes in a form suitable for conducting biochemical...http://www.google.co.uk/patents/US5874282?utm_source=gb-gplus-sharePatent US5874282 - Purified DNA polymerase from Bacillus stearothermophilus ATTC 12980