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Publication number
JP2012509059A5
JP2012509059A5 JP2011535839A JP2011535839A JP2012509059A5 JP 2012509059 A5 JP2012509059 A5 JP 2012509059A5 JP 2011535839 A JP2011535839 A JP 2011535839A JP 2011535839 A JP2011535839 A JP 2011535839A JP 2012509059 A5 JP2012509059 A5 JP 2012509059A5
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Prior art keywords
cell
desaturase
elongase
polynucleotide
fatty acid
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JP2012509059A (ja
JP6068800B2 (ja
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Priority claimed from PCT/AU2009/001488 external-priority patent/WO2010057246A1/en
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Claims (14)

  1. i)Δ5エロンガーゼ活性を有する脂肪酸エロンガーゼ
    ii)Δ8デサチュラーゼおよび/またはΔ6デサチュラーゼ、
    iii)Δ9エロンガーゼおよび/またはΔ6エロンガーゼ、
    iv)Δ5デサチュラーゼ、ならびに
    v)場合によって、Δ4デサチュラーゼおよび/またはω3デサチュラーゼ
    をコードする外因性ポリヌクレオチドを含む組換え細胞であって、
    各ポリヌクレオチドが、前記細胞中における前記ポリヌクレオチドの発現を誘導できる1つまたは複数のプロモーターに作動可能に連結し、かつ前記細胞中において前記Δ5エロンガーゼが前記外因性ポリヌクレオチドから発現される場合、前記エロンガーゼが、少なくとも60%効率でDPAを産生する、EPAに対する活性を有する、組換え細胞。
  2. 植物細胞である、請求項1に記載の組換え細胞。
  3. i)前記細胞が、野生型細胞と比較した場合、オレイン酸をエイコセン酸(C20:1)に変換する低下した能力を有し、および/または前記オレイン酸の5%未満が前記細胞中においてエイコセン酸に変換される
    ii)前記細胞が、前記外因性ポリヌクレオチドを欠く対応する細胞と比較して、GLAからSDAおよび/またはARAからEPAの増加した変換率含む
    iii)前記細胞中におけ脂肪酸中におけるDHAの量が、前記細胞中における全脂肪酸の少なくとも3%ある
    iv)LAからARAおよび/またはALAからEPAの変換の効率が、少なくとも80%ある、および
    v)ALAからEPA、DPAまたはDHAの変換の効率が、少なくとも17.3%である
    の内の1つまたは複数の特徴を有する、請求項1または2に記載の細胞。
  4. 前記細胞中における前記脂肪酸中におけるARA、EPA、DPAおよびDHAの総計が、前記細胞中における全脂肪酸の少なくとも15%を含み、前記細胞中における全脂肪酸の少なくとも3%がDHAであり、かつC20:1のレベルが1%未満である、請求項1から3のいずれか一項に記載の細胞。
  5. i)Δ17デサチュラーゼ、
    ii)Δ15デサチュラーゼ、および/または
    iii)Δ12デサチュラーゼ
    をコードする外因性ポリヌクレオチドをさらに含み、
    各ポリヌクレオチドが、前記細胞中における前記ポリヌクレオチドの発現を誘導できる1つまたは複数のプロモーターに作動可能に連結する、請求項1からのいずれか一項に記載の細胞。
  6. 前記デサチュラーゼの内の1種もしくは複数種または全てが、対応するアシル−PC基質よりも大きなアシル−CoA基質に対する活性を有する、請求項1からのいずれか一項に記載の細胞。
  7. 1種または複数種の長鎖多価不飽和脂肪酸(LC−PUFA)を合成できる細胞を得る方法であって、
    a) i)Δ5エロンガーゼ活性を有する脂肪酸エロンガーゼ、
    ii)Δ8デサチュラーゼおよび/またはΔ6デサチュラーゼ
    iii)Δ9エロンガーゼおよび/またはΔ6エロンガーゼ、
    iv)Δ5デサチュラーゼ、ならびに
    v)場合によって、Δ4デサチュラーゼおよび/またはω3デサチュラーゼ、
    をコードする外因性ポリヌクレオチドを細胞、好ましくは前記LC−PUFAを合成することができない細胞中に導入するステップであり、
    各ポリヌクレオチドが、前記細胞中における前記ポリヌクレオチドの発現を誘導できるロモーターに作動可能に連結する、ステップ、
    b)前記細胞中において前記外因性ポリヌクレオチドを発現させるステップ、
    c)前記細胞の脂肪酸組成を分析するステップ、ならびに
    d)細胞を選択するステップであり、前記Δ5エロンガーゼが、少なくとも60%の効率でDPAを産生する、EPAに対する活性を有する、ステップ
    を含む方法。
  8. 請求項1から6のいずれか一項に記載の細胞を含むトランスジェニック非ヒト生物。
  9. トランスジェニック植物である、請求項8に記載の生物。
  10. 請求項1から6のいずれか一項に記載の細胞を含むか、または請求項9のトランスジェニック植物から得られる種子。
  11. 不飽和脂肪酸を含有する油の製造方法であって、請求項1からのいずれか一項に記載の細胞請求項もしくはに記載のトランスジェニック非ヒト生物、および/または請求項10に記載の種子から油を抽出するステップを含む方法。
  12. 前記種子が油料種子である、請求項11記載の方法。
  13. 請求項1からのいずれか一項に記載の細胞請求項もしくはに記載のトランスジェニック非ヒト生物、請求項10に記載の種子、および/または請求項11もしくは請求項12の方法を用いて得られる含む飼料、化粧品または化学物質。
  14. 求項1からのいずれか一項に記載の細胞請求項もしくはに記載のトランスジェニック非ヒト生物、請求項10に記載の種子、および/または請求項11もしくは請求項12の方法を用いて得られるを含むPUFAから利益を受ける状態を治療または予防するための医薬品。

JP2011535839A 2008-11-18 2009-11-17 オメガ−3脂肪酸を産生するための酵素および方法 Active JP6068800B2 (ja)

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US19966908P 2008-11-18 2008-11-18
US61/199,669 2008-11-18
US27071009P 2009-07-09 2009-07-09
US61/270,710 2009-07-09
PCT/AU2009/001488 WO2010057246A1 (en) 2008-11-18 2009-11-17 Enzymes and methods for producing omega-3 fatty acids

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US (12) US8809559B2 (ja)
EP (2) EP3260544A1 (ja)
JP (4) JP6068800B2 (ja)
CN (5) CN102317459A (ja)
AR (1) AR074364A1 (ja)
AU (1) AU2009317860B2 (ja)
BR (3) BR122021003835B1 (ja)
CA (3) CA3082380A1 (ja)
CL (1) CL2011001162A1 (ja)
DK (1) DK2358882T3 (ja)
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NO (1) NO2358882T3 (ja)
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