abstract |
The present invention provides DNA compounds that encode isopenicillin N epimerase activity. The compounds can be used to construct recombinant DNA expression vectors for a wide variety of host cells, including E . coli , Penicillium , Streptomyces , Aspergillus , and Cephalosporium . The invention also comprises methods for expressing isopenicillin N epimerase activity in host cells. |