Abstract: Modified PKS gene clusters which produce novel polyketides in an efficient system in a host cell or in a cell free extract are described. The novel polyketides result from the incorporation of diketides of the formula
wherein A is a moiety that activates the diketide, and at least one of R1 and R2 is a substituent other than that natively occurring in the diketide normally processed by the modified PKS cluster. The polyketides may also be glycosylated to provide antibiotics.
Type:
Grant
Filed:
May 14, 1999
Date of Patent:
December 31, 2002
Assignees:
Stanford University (Board of Trustees of the Leland Stanford
Junior University), Brown University Research Foundation
Inventors:
Chaitan Khosla, Rembert Pieper, Guanglin Luo, David E. Cane, Camilla Kao