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Specific for palmitoyl, stearoyl and oleoyl-alp thioesters nucleic acid fragments encoding acyl-acp thiosesterase enzymes and the use of these fragments in altering plant oil composition

  • US 5,945,585 A
  • Filed: 10/09/1997
  • Issued: 08/31/1999
  • Est. Priority Date: 12/20/1990
  • Status: Expired due to Fees
First Claim
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1. An isolated nucleic acid fragment encoding an acyl-ACP thioesterase which catalyzes the hydrolysis of palmitoyl, stearoyl and oleoyl-ACP thioesters, wherein said isolated nucleic acid fragment hybridizes to nucleotides 271 to 1206 of SEQ ID NO:

  • 1 or nucleotides 282 to 1217 of SEQ ID NO;

    3 or nucleotides 210 to 1121 of SEQ ID NO;

    23 under one of the following sets of conditions;

    (a) hybridization in 6×

    SSC, 1 mM EDTA, 1% SDS, and 100 μ

    g/mL denatured salmon sperm DNA at 45°

    C. for 10 h and wash 3 times at room temperature with 0.6×

    SSC containing 0.1% SDS, then once at 50°

    C. for 5 min in the same solution and two additional washes for 5 min each at 50°

    C. in 0.2×

    SSC, 0.1% SDS followed by a 1 min rinse under the same conditions;

    or(b) hybridization in 6×

    SSC, 1 mM EDTA, 1% SDS, and 100 μ

    g/mL denatured salmon sperm DNA at 45°

    C. for 10 h and wash twice at room temperature with 0.6×

    SSC containing 0.1% SDS followed by two 5 minute washes and one 1 minute wash in the same solution and all at 52°

    C.

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