Mortierella alpina diacylglycerol acyltransferase for alteration of polyunsaturated fatty acids and oil content in oleaginous organisms
First Claim
1. An isolated nucleic acid molecule selected from the group consisting of:
- (a) an isolated nucleic acid molecule encoding a diacylglycerol acyltransferase 2 enzyme, having the amino acid sequence as set forth in SEQ ID NO;
2;
(b) an isolated nucleic acid molecule encoding an diacylglycerol acyltransferase 2 enzyme, that hybridizes with (a) under the following hybridization conditions;
0.1×
SSC, 0.1% SDS, 65°
C. and washed with 2×
SSC, 0.1% SDS followed by 0.1×
SSC, 0.1% SDS;
or(c) an isolated nucleic acid molecule that is completely complementary to (a) or (b).
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Accused Products
Abstract
An acyltransferase is provided, suitable for use in the manufacture of microbial oils enriched in omega fatty acids in oleaginous organisms. Specifically, the gene encoding diacylglycerol acyltransferase (DGAT2) has been isolated from Mortierella alpina. This gene encodes an enzyme that participates in the terminal step in oil biosynthesis in fungi and yeast and is expected to play a key role in altering the quantity of long-chain polyunsaturated fatty acids produced in oils of oleaginous organisms. Most desirably, the substrate specificity of the instant DGAT2 will be particularly useful to enable accumulation of long-chain PUFAs having chain lengths equal to or greater than C20 in oleaginous yeast, such as Yarrowia lipolytica.
79 Citations
8 Claims
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1. An isolated nucleic acid molecule selected from the group consisting of:
-
(a) an isolated nucleic acid molecule encoding a diacylglycerol acyltransferase 2 enzyme, having the amino acid sequence as set forth in SEQ ID NO;
2;(b) an isolated nucleic acid molecule encoding an diacylglycerol acyltransferase 2 enzyme, that hybridizes with (a) under the following hybridization conditions;
0.1×
SSC, 0.1% SDS, 65°
C. and washed with 2×
SSC, 0.1% SDS followed by 0.1×
SSC, 0.1% SDS;
or(c) an isolated nucleic acid molecule that is completely complementary to (a) or (b). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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Specification