| 摘要 |
The present invention relates to an isolated alpha class carbonic anhydrase (CA) enzyme that is heat-active and heat-stable for at least 2 hours up to near 100°C and functional derivatives thereof wherein said derivatives maintain the carbonic anhydrase activities of the enzyme herein described. In addition the present invention relates to use of said heat-stable carbonic anhydrase or said derivative thereof at temperatures higher than 65° in C02 extraction (in the range from 70°C to 1 10°C) as well as to isolated polypeptides coding for said anhydrase or derivatives thereof and to having said carbonic anhydrase activity and to isolated polynucleotides encoding said polypeptides.. The invention also relates to nucleic acid constructs or vectors comprising said polynucleotides, and host cells comprising said constructs or vectors. |
