Abstract: Recombinant nucleic acids that encode all or a portion of the epothilone polyketide synthase (PKS) are used to express recombinant PKS genes in host cells for the production of epothilones, epothilone derivatives, and polyketides that are useful as cancer chemotherapeutics, fungicides, and immunosuppressants.
Type:
Grant
Filed:
November 19, 1999
Date of Patent:
October 16, 2001
Assignee:
Kason Biosciences, Inc.
Inventors:
Bryan Julien, Leonard Katz, Chaitan Khosla, Li Tang
Abstract: Hybrid and novel polyketide synthases (PKSs) and polyketides are produced by use of a multiple vector system. The combinatorial possibilities offered by placing the various catalytic activities of PKS systems on separate vectors permits the construction of improved libraries of PKS and polyketides. In addition, polyketides can be produced in hosts that ordinarily do not produce polyketides by supplying, along with an expression system for the desired PKS, an expression system for holo acyl carrier protein (ACP) synthase.
Type:
Grant
Filed:
October 21, 1999
Date of Patent:
July 10, 2001
Assignee:
Kosan Biosciences, Inc.
Inventors:
Philip J. Barr, Daniel V. Santi, Gary W. Ashley, Rainer Ziermann