JP2012152225A5 - - Google Patents

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JP2012152225A5
JP2012152225A5 JP2012113546A JP2012113546A JP2012152225A5 JP 2012152225 A5 JP2012152225 A5 JP 2012152225A5 JP 2012113546 A JP2012113546 A JP 2012113546A JP 2012113546 A JP2012113546 A JP 2012113546A JP 2012152225 A5 JP2012152225 A5 JP 2012152225A5
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phytase
polypeptide
host cell
seq
isolated polypeptide
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JP2012152225A (ja
JP5778077B2 (ja
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Claims (18)

  1. 列番号3に対して少なくとも90%の同一性を有するアミノ酸配列を含む、単離されたポリペプチドまたはフィターゼであって、該ポリペプチドは、配列番号3に従って番号付けした場合の変異D53Nを含む、単離されたポリペプチドまたはフィターゼ
  2. 前記ポリペプチドが配列番号3に対して99%の同一性を有する、請求項1に記載の単離されたポリペプチドまたはフィターゼ。
  3. 前記ポリペプチドが、シグナル配列を欠失するか、または、配列番号3に従って番号付けした場合のアミノ酸1〜22を欠失する、請求項1または2に記載の単離されたポリペプチドまたはフィターゼ。
  4. 前記ポリペプチドが、配列番号3に示される配列を有するポリペプチドと比較して増加した熱安定性を有する、請求項1に記載の単離されたポリペプチドまたはフィターゼ。
  5. 請求項1〜4のいずれか1項に記載の単離されたポリペプチドまたはフィターゼ、あるいは、これらに対して少なくとも75%の同一性を有する配列をコードする単離された核酸分子。
  6. 請求項1〜4のいずれか1項に記載される単離されたポリペプチドもしくはフィターゼを含むプラスミドまたはベクター系。
  7. 請求項に記載の核酸分子または配列番号2に示される配列を含む単離された核酸分子、あるいは、これらに対して少なくとも75%の同一性を有する配列を含む、請求項に記載のプラスミドまたはベクター系。
  8. 前記プラスミドまたはベクター系が、宿主細胞または微生物中において、それぞれのフィターゼ酵素またはそのホモログ、改変型、機能的な等価物もしくは有効なフラグメントの発現のための発現ベクターである、請求項またはに記載のプラスミドまたはベクター系。
  9. 請求項のいずれかに記載のプラスミドまたはベクター系で形質転換またはトランスフェクトされた宿主細胞。
  10. 請求項に記載の宿主細胞であって、前記宿主細胞が、B.subtilis、E.coliのような細菌を含む微生物、および、H.polymorpha、S.pombe、S.cerevisiaeのような酵母を含む真菌由来である、宿主細胞。
  11. 前記微生物が原核生物細菌細胞である請求項10に記載の宿主細胞。
  12. 前記原核生物細菌細胞がE.coliである、請求項11に記載の宿主細胞。
  13. フィターゼを産生する方法であって、該方法は、請求項1〜4のいずれか1項に記載の単離されたポリペプチドまたはフィターゼを宿主細胞中で発現する工程と、該宿主細胞培養培地から該フィターゼを分離する工程とを包含する、方法。
  14. 請求項1〜4のいずれか1項に記載されるフィターゼを含む食物または動物飼料組成物。
  15. 食物または動物の飼料中における請求項1〜4のいずれか1項に記載のフィターゼの使用。
  16. 食物または動物飼料に対して請求項1〜4のいずれか1項に記載のフィターゼを液体形態で噴霧する工程、および/または、請求項1〜4のいずれか1項に記載のフィターゼを乾燥生成物として該食品または動物飼料と混合する工程を包含する、食物または動物飼料の生成のための方法。
  17. 配列番号3に対して少なくとも90%の同一性を有するアミノ酸配列を有し、不活性化温度を測定することによって決定した場合に、配列番号3と比較して向上された熱安定性を有する単離されたポリペプチドまたはフィターゼであって、該不活性化温度は、残留活性が、室温で同じ条件下で同じ期間にわたってインキュベーションした後の残留活性と比較して50%である温度であり、
    該残留活性は、特定の温度にて1時間、200mM 酢酸ナトリウム緩衝液pH3.5中の2mM フィチン酸塩および0.8mM CaCl の反応混合物をインキュベートし、その時間の後、新たに調製したAMM溶液200μlを該反応混合物に添加することによって放出されたリン酸塩を測定することによって決定され、該AMM溶液は、1:1:2の比の7.5N H SO 、15mM モリブデン酸アンモニウムおよびアセトンから構成され、
    ここで、該AMM試薬の添加後、10分より後でかつ30分より前に、390nmでの吸光度が測定され、そして、リン酸塩の量が、既知濃度のリン酸塩溶液を用いて検量線を作成することによって決定される、
    単離されたポリペプチドまたはフィターゼ。
  18. 明細書中に記載の発明。
JP2012113546A 2004-10-04 2012-05-17 Citrobacterfreundiiフィターゼおよびホモログ Expired - Fee Related JP5778077B2 (ja)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB0422052.1A GB0422052D0 (en) 2004-10-04 2004-10-04 Enzymes
GB0422052.1 2004-10-04
PCT/IB2005/000598 WO2006038062A1 (en) 2004-10-04 2005-02-15 Microbial phytase as supplement to food or fodder
IBPCT/IB2005/000598 2005-02-15

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JP2012152225A JP2012152225A (ja) 2012-08-16
JP2012152225A5 true JP2012152225A5 (ja) 2013-04-04
JP5778077B2 JP5778077B2 (ja) 2015-09-16

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US (2) US8143045B2 (ja)
JP (2) JP5627838B2 (ja)
CN (2) CN101035893B (ja)
BR (1) BRPI0516455B1 (ja)
DK (1) DK1797178T3 (ja)
ES (1) ES2394908T3 (ja)
GB (1) GB0422052D0 (ja)
MX (1) MX2007004066A (ja)
WO (1) WO2006038062A1 (ja)

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