Recombinant polyketide synthase genes
AssigneeKosan Biosciences, Inc.
InventorsZhihao Hu, Robert McDaniel, Daniel V. Santi
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Abstract
Regions of sequence identity are recurrent in some modular polyketide synthase (PKS) gene clusters. Such sequences are potentially detrimental to the stability of PKS gene clusters and expression plasmids for the genes in the gene cluster. PKS gene and gene cluster stability can be improved, and reproducible polyketide titers can be obtained using those genes and gene clusters when the regions of sequence identity are reduced or eliminated by replacing one or more identical or homologous segments with non-homologous segments that encode the same or a substantially similar amino acid sequence.
Claims8
A recombinant polyketide synthase (PKS) gene that differs from a naturally occurring PKS gene by replacement of a segment of a homologous region contained in said naturally occurring PKS gene with a nucleotide sequence that is not identical to said segment.
Dependencies are inferred from the claim text.