Patent ID: 7271315

Claim:
A genetically modified plant or plant part, wherein cells of the plant are transfected with at least one recombinant nucleic acid molecule encoding a polyketide synthase (PKS) system for the production of polyunsaturated fatty acids (PUFAs) and a phosphopantetheine transferase, wherein the PKS system comprises the following proteins: a) a protein comprising an amino acid sequence that is at least 95% identical to SEQ ID NO:2 and has β-keto acyl-ACP synthase (KS) activity, malonyl-CoA:ACP acyltransferase (MAT) activity, acyl carrier protein (ACP) activity and ketoreductase (KR) activity, wherein the amino acid sequence comprises an aspartate at a position corresponding to amino acid 667 of SEQ ID NO:2 and a histidine at a position corresponding to amino acid 668 of SEQ ID NO:2; b) a protein comprising an amino acid sequence that is at least 95% identical to SEQ ID NO:4 and has KS activity, chain length factor (CLF) activity, acyl transferase (AT) activity, and enoyl ACP-reductase (ER) activity, wherein the amino acid sequence comprises a valine at a position corresponding to amino acid 371 of SEQ ID NO:4 and a glutamate at a position corresponding to amino acid 1415 of SEQ ID NO:4; and c) a protein comprising an amino acid sequence that is at least 95% identical to SEQ ID NO:6 and has FabA-like β-hydroxy acyl-ACP dehydrase (DH) activity and ER activity, wherein the amino acid sequence comprises the sequence of H-G-I-A-N-P-T-F-V-H-A-P-G-K-I (positions 876-890 of SEQ ID NO:6) at positions corresponding to amino acids 876-890 of SEQ ID NO:6.