The disclosure relates to the field of specialty chemicals and methods for their synthesis. In embodiments, the disclosure provides viable bacterial cells which comprise heterologous dual 3-hydroxy-acyl-ACP dehydratase/isomerases, etc. The disclosure further provides monounsaturated fatty acid derivative molecules produced by the viable bacterial cells which are non-native to the bacterial cells. The disclosure further provides methods for the preparation and production of non-native monounsaturated fatty acid derivative molecules such as e.g., an 3-monounsaturated fatty acid derivative, an 5-monounsaturated fatty acid derivative, an 9-monounsaturated fatty acid derivative, an 11-monounsaturated fatty acid fatty acid derivative, etc.

Recombinant microorganisms are provided which have been engineered to produce fatty alcohols. Also provided are recombinant microorganisms which comprise a heterologous polynucleotide encoding a fatty alcohol reductase enzyme and an introduced polynucleotide encoding a -ketoacyl acyl carrier protein synthase.

The present invention is directed to isolated nucleic acid molecules and polypeptides of thraustochytrid polyunsaturated fatty acid (PUFA) synthases involved in the production of PUFAs, including PUFAs enriched in docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA), or a combination thereof. The present invention is directed to vectors and host cells comprising the nucleic acid molecules, polypeptides encoded by the nucleic acid molecules, compositions comprising the nucleic acid molecules or polypeptides, and methods of making and uses thereof.

The present invention is directed to isolated nucleic acid molecules and polypeptides of thraustochytrid polyunsaturated fatty acid (PUFA) synthases involved in the production of PUFAs, including PUFAs enriched in docosahexaenoic acid (DHA), eicosapentaenoic acid (EPA), or a combination thereof. The present invention is directed to vectors and host cells comprising the nucleic acid molecules, polypeptides encoded by the nucleic acid molecules, compositions comprising the nucleic acid molecules or polypeptides, and methods of making and uses thereof.

The disclosure relates to the field of specialty chemicals and methods for their synthesis. In embodiments, the disclosure provides viable bacterial cells which comprise heterologous dual 3-hydroxy-acyl-ACP dehydratase/isomerases, etc. The disclosure further provides monounsaturated fatty acid derivative molecules produced by the viable bacterial cells which are non-native to the bacterial cells. The disclosure further provides methods for the preparation and production of non-native monounsaturated fatty acid derivative molecules such as e.g., an 3-monounsaturated fatty acid derivative, an 5-monounsaturated fatty acid derivative, an 9-monounsaturated fatty acid derivative, an 11-monounsaturated fatty acid fatty acid derivative, etc.

The disclosure provides fused dimer constructs that enhance fatty acid production and methods for making the dimer constructs. The fused dimer comprises Fab A and/or FabZ enzymes.