Fatty acid-producing hosts
AssigneeWisconsin Alumni Research Foundation
InventorsBrian F. Pfleger, Rebecca M. Lennen
Life of this patent
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Abstract
Described are hosts for overproducing a fatty acid product such as a fatty acid. The hosts include an exogenous nucleic acid encoding a thioesterase and, optionally, an exogenous nucleic acid encoding an acetyl-CoA carboxylase, wherein an acyl-CoA synthetase in the hosts are functionally deleted. The hosts preferably include the nucleic acid encoding the thioesterase at an intermediate copy number. The hosts are preferably recombinantly stable and growth-competent at 37° C. Methods of producing a fatty acid product comprising culturing such hosts at 37° C. are also described.
Claims25
An isolated host cell for producing a fatty acid product comprising an exogenous nucleic acid encoding a thioesterase (EC 3.1.2.14), wherein:
- the thioesterase comprises a sequence at least 80% identical to SEQ ID NO:2;
- the host includes no more than 250 copies of the nucleic acid;
- an acyl-CoA synthetase (EC 6.2.1.3) in the host is functionally deleted;
- and
- the host is recombinantly stable at 37° C.
Dependencies are inferred from the claim text.