The present invention provides for a polyketide synthase (PKS) capable of synthesizing an .alpha.-olefin, such as 1-hexene or butadiene. The present invention also provides for a host cell comprising the PKS and when cultured produces the .alpha.-olefin.
STATEMENT OF GOVERNMENTAL SUPPORT
 This invention was made with government support under Contract No. DE-ACO2-05CH11231 awarded by the U.S. Department of Energy and Award No. 0540879 awarded by the National Science Foundation. The government has certain rights in the invention