JPH11501801A - 耐熱性が向上し、かつ、プライマーエクステンションの長さと効率が向上したdnaポリメラーゼ - Google Patents
耐熱性が向上し、かつ、プライマーエクステンションの長さと効率が向上したdnaポリメラーゼInfo
- Publication number
- JPH11501801A JPH11501801A JP6522506A JP52250694A JPH11501801A JP H11501801 A JPH11501801 A JP H11501801A JP 6522506 A JP6522506 A JP 6522506A JP 52250694 A JP52250694 A JP 52250694A JP H11501801 A JPH11501801 A JP H11501801A
- Authority
- JP
- Japan
- Prior art keywords
- dna polymerase
- dna
- primer
- polymerase
- exonuclease activity
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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- 239000001632 sodium acetate Substances 0.000 description 1
- 235000017281 sodium acetate Nutrition 0.000 description 1
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 description 1
- 229940048086 sodium pyrophosphate Drugs 0.000 description 1
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- 235000019364 tetracycline Nutrition 0.000 description 1
- 150000003522 tetracyclines Chemical class 0.000 description 1
- 235000019818 tetrasodium diphosphate Nutrition 0.000 description 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 238000013518 transcription Methods 0.000 description 1
- 230000035897 transcription Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 239000001226 triphosphate Substances 0.000 description 1
- 235000011178 triphosphate Nutrition 0.000 description 1
- UNXRWKVEANCORM-UHFFFAOYSA-N triphosphoric acid Chemical compound OP(O)(=O)OP(O)(=O)OP(O)(O)=O UNXRWKVEANCORM-UHFFFAOYSA-N 0.000 description 1
- LENZDBCJOHFCAS-UHFFFAOYSA-N tris Chemical compound OCC(N)(CO)CO LENZDBCJOHFCAS-UHFFFAOYSA-N 0.000 description 1
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- C12N9/1241—Nucleotidyltransferases (2.7.7)
- C12N9/1252—DNA-directed DNA polymerase (2.7.7.7), i.e. DNA replicase
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- C12Q1/6844—Nucleic acid amplification reactions
- C12Q1/686—Polymerase chain reaction [PCR]
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Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.実質的にThermus aquaticus DNAポリメラーゼと同 じアミノ酸配列からなるが、前記DNAポリメラーゼのN−末端280アミノ酸 残基を欠くアミノ酸配列を有するDNAポリメラーゼをコード化する組換えDN A配列。 2.実質的にThermus aquaticus DNAポリメラーゼのそ れと同じアミノ酸配列からなり、Thermus aquaticus DNA ポリメラーゼのN−末端280アミノ酸残基を除くアミノ酸配列を有するDNA ポリメラーゼ。 3.配列番号:6のアミノ酸配列を有する請求項2に記載のDNAポリメラー ゼ。 4.プラスミドpWB254bに含まれるDNA配列によってコード化されて いる請求項2に記載のDNAポリメラーゼ。 5.実質的にThermus flavusのDNAポリメラーゼのアミノ酸 280−831からなるアミノ酸配列を有するDNAポリメラーゼ。 6.3′−エキソヌクレアーゼ活性を欠く少なくとも1つの耐熱性DNAポリ メラーゼを含む多数成分と、3′−エキソヌクレアーゼ活性を示す少なくとも1 つの耐熱性DNAポリメラーゼを含む少数成分とからなる耐熱性DNAポリメラ ーゼの配合。 7.3′−エキソヌクレアーゼ活性を欠く少なくとも1つの耐熱性DNAポリ メラーゼがKlentaq−278である請求項6に記載の耐熱性DNAポリメ ラーゼの配合。 8.3′−エキソヌクレアーゼ活性を示す少なくとも1つの耐熱性DNAポリ メラーゼがPyrococcus furiosusからのPfu DNAポリ メラーゼ、Thermococcus litoralisからのTli DN Aポリメラーゼ、あるいは前記DNAポリメラーゼのDNAポリメラーゼ活性を 減少させるか、不活性化させる種々のPfu DNAポリメラーゼあるいはTl i DNAポリメラーゼからなるグループから選ばれる請求項7に記載の耐熱性 DNAポリメラーゼの配合。 9.配合の多数成分と少数成分は、少数成分の1単位に対して多数成分を約1 0単位から2000単位の割合で存在させる請求項6に記載の耐熱性DNAポリ メラーゼの配合。 10.配合の多数成分と少数成分は、少数成分の1単位に対して多数成分を約 100単位から600単位の割合で存在させる請求項9に記載の耐熱性DNAポ リメラーゼの配合。 11.少なくとも1つのDNAポリメラーゼからなるDNAポリメラーゼの配 合であって、野生型形体において、3’−エキソヌクレアーゼ活性を呈し、かつ 、上記少なくとも1つのDNAポリメラーゼの上記3’−エキソヌクレアーゼ活 性が上記少なくとも1つのDNAポリメラーゼのその野生型形体における3’− エキソヌクレアーゼ活性の約0.2%から約7%の範囲に低減された温度サイク ル型ポリメラーゼ連鎖反応に触媒作用を及ぼすことが出来る少なくとも1つのD NAポリメラーゼからなるDNAポリメラーゼの配合。 12.有意味的な3’−エキソヌクレアーゼ活性を何ら持たない1またはそれ 以上のDNAポリメラーゼをE1とし、有意味的な3’−エキソヌクレアーゼ活 性を呈する1又はそれ以上のDNAポリメラーゼがE2とした場合に、E1とE 2からなり、E1のE2に対する量の比がDNAポリメラーゼ単位にして少なく とも約4:1、または、(b)タンパク質の重量にして少なくとも約4:1であ るDNAポリメラーゼの配合。 13.E2がPyrococcus furiosus、Thermococ cus literalis、Thermococcus種GB−D、T7コリ ファージ、Thermotoga maritimaあるいはそれらの組み合わ せからの遺伝子によってコード化されたDNAポリメラーゼからなる群から選択 され、E1が、突然変異体、E2の3’−エキソヌクレアーゼ陰性形体、又は、 Thermus aquaticus、Thermus flavusまたはT hermus thermophilusからの遺伝子によってコード化された DNAポリメラーゼ等の有意味的な3’−エキソヌクレアーゼ活性を突然変異し ていない形体では呈さないDNAポリメラーゼからなる群から選択される、請求 項12に記載のDNAポリメラーゼの配合。 14.E2がPyrococcus furiosusからのPfuDNAポ リメラーゼからなり、E1のE2に対する単位比が約150から170:1の 範囲である請求項12に記載のDNAポリメラーゼの配合。 15.Klentaq−278のPyrococcus furiosusD NAポリメラーゼに対する単位比が約150から約170:1であることを含む 請求項12に記載のDNAポリメラーゼの配合。 16.Klentaq−291のPyrococcus furiosusD NAポリメラーゼに対する単位比が約150から約170:1であることを含む 請求項12に記載のDNAポリメラーゼの配合。 17.E2がPyrococcus種GB−DからのPfuDNAポリメラー ゼからなり、E1のE2に対する単位比が約450から500の範囲である請求 項12に記載のDNAポリメラーゼの配合。 18.野生型又はほぼ無損失のThermus aquaticusDNAポ リメラーゼのPyrococcus furiosusDNAポリメラーゼに対 する単位比が約10から約15:1であることを含む請求項12に記載のDNA ポリメラーゼの配合。 19.E1が逆転写酵素からなる、請求項12に記載のDNAポリメラーゼの 配合。 20.E1がT7又はT3DNAポリメラーゼの突然変異体或いは化学的修飾 からなり、E2が野生型のT7又はT3DNAポリメラーゼからなる、請求項1 2に記載のDNAポリメラーゼの配合。 21.E1がThermus flavus又はThermus therm ophilusDNAポリメラーゼからなる請求項12に記載のDNAポリメラ ーゼの配合。 22.E1が有意味的な3’−エキソヌクレアーゼ活性を何ら持たないThe rmococcus literalisDNAポリメラーゼ変異型からなり、 E2が野生型のThermococcus literalisDNAポリメラ ーゼからなる、請求項12に記載のDNAポリメラーゼの配合。 23.各々について異なる特定の配列が増幅される2つの相補鎖を、1つの、 1対の、又は、対の混合物をなすオリゴヌクレオチドプライマーで処理し、DN AポリメラーゼまたはDNAポリメラーゼの混合物を、合成に効果的な条件下で 各核酸鎖に対して相補的な各プライマーの伸長(エクステンション)生成物の 合成に触媒作用を与えるために使用し、また、上記プライマーを各特定配列の異 なる鎖に対して十分に相補的になるように選択してそれとハイブリッド形成し、 1つのプライマーから合成された伸長生成物が、その補体から分離される際に、 同じ又は別に含まれるプライマーを伸長させることによって伸長生成物の相補的 な鎖の合成用の鋳型として作用することが出来るようにし、プライマー伸長生成 物は、それらが合成されて一本鎖分子を生じた鋳型から分離されて、このように して生じた一本鎖分子をプライマーで処理し、DNAポリメラーゼまたはDNA ポリメラーゼの混合物を使用してプライマー伸長生成物の合成に有効な条件下で 各プライマーの伸長生成物の合成に触媒作用を与え、また、改善点がこのDNA ポリメラーゼを請求項6に記載のように配合すること及び上記DNAポリメラー ゼの配合でプライマーエクステンションに触媒作用を及ぼすことを含む、繰り返 しサイクル型のポリメラーゼ連鎖反応によって核酸配列を増幅するための方法。 24.各々について異なる特定の配列が増幅される2つの相補鎖を、1つの、 1対の、又は、対の混合物をなすオリゴヌクレオチドプライマーで処理し、DN AポリメラーゼまたはDNAポリメラーゼの混合物を、合成に効果的な条件下で 各核酸鎖に対して相補的な各プライマーの伸長生成物の合成に触媒作用を与える ために使用し、また、上記プライマーを各特定配列の異なる鎖に対して十分に相 補的になるように選択してそれとハイブリッド形成し、1つのプライマーから合 成された伸長生成物が、その補体から分離される際に、同じ又は別に含まれるプ ライマーを伸長させることによって伸長生成物の相補的な鎖の合成用の鋳型とし て作用することが出来るようにし、プライマー伸長生成物は、それらが合成され て一本鎖分子を生じた鋳型から分離されて、このようにして生じた一本鎖分子を プライマーで処理し、DNAポリメラーゼまたはDNAポリメラーゼの混合物を 使用してプライマー伸長生成物の合成に有効な条件下で各プライマーの伸長生成 物の合成に触媒作用を与え、また、改善点がこのDNAポリメラーゼを請求項7 に記載のように配合すること及び上記DNAポリメラーゼの配合でプライマーエ クステンションに触媒作用を及ぼすことを含む、繰り返しサイクル型のポリメラ ーゼ連鎖反応によって核酸配列を増幅するための方法。 25.何らかの繰り返しサイクルに利用されている1つまたはそれ以上のプ ライマーそのものがPCR増幅の生成物である、請求項24に記載の方法。 26.各繰り返しサイクルに変性ステップを更に含み、この変性ステップは反 応混合物において約20秒よりも短い期間を有している、請求項24に記載の方 法。 27.上記変性ステップが反応混合物において約5秒よりも短い期間を有して いる請求項26に記載の方法。 28.各々について異なる特定の配列が増幅される2つの相補鎖を、1つの、 1対の、又は、対の混合物をなすオリゴヌクレオチドプライマーで処理し、DN AポリメラーゼまたはDNAポリメラーゼの混合物を、合成に効果的な条件下で 各核酸鎖に対して相補的な各プライマーの伸長生成物の合成に触媒作用を与える ために使用し、また、上記プライマーを各特定配列の異なる鎖に対して十分に相 補的になるように選択してそれとハイブリッド形成し、1つのプライマーから合 成された伸長生成物が、その補体から分離される際に、同じ又は別に含まれるプ ライマーを伸長させることによって伸長生成物の相補的な鎖の合成用の鋳型とし て作用することが出来るようにし、プライマー伸長生成物は、それらが合成され て一本鎖分子を生じた鋳型から分離されて、このようにして生じた一本鎖分子を プライマーで処理し、DNAポリメラーゼまたはDNAポリメラーゼの混合物を 使用してプライマー伸長生成物の合成に有効な条件下で各プライマーの伸長生成 物の合成に触媒作用を与え、また、改善点が、野生型形体において3’−エキソ ヌクレアーゼ活性を呈し、かつ、温度サイクル型ポリメラーゼ連鎖反応に触媒作 用を与えることが出来る少なくとも1つのDNAポリメラーゼからなるDNAポ リメラーゼを配合することを含み、このとき上記少なくとも1つのDNAポリメ ラーゼの上記3’−エキソヌクレアーゼ活性は、消えてはいないが、上記少なく とも1つのDNAポリメラーゼのその野生型形体における3’−エキソヌクレア ーゼ活性の約7%よりも大きくない程度まで低減しており、また、上記DNAポ リメラーゼの配合でプライマーエクステンションに触媒を与えることを含む、繰 り返しサイクル型のポリメラーゼ連鎖反応によって核酸配列を増幅するための方 法。
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US21,623 | 1979-03-19 | ||
US08/021,623 US5436149A (en) | 1993-02-19 | 1993-02-19 | Thermostable DNA polymerase with enhanced thermostability and enhanced length and efficiency of primer extension |
US08/021,623 | 1993-02-19 | ||
PCT/US1994/001867 WO1994026766A1 (en) | 1993-02-19 | 1994-02-22 | Dna polymerases with enhanced thermostability and enhanced length and efficiency of primer extension |
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JP35919998A Division JP3404716B2 (ja) | 1993-02-19 | 1998-12-17 | 耐熱性が向上し、かつ、プライマーエクステンションの長さと効率が向上したdnaポリメラーゼ |
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JP35919998A Expired - Lifetime JP3404716B2 (ja) | 1993-02-19 | 1998-12-17 | 耐熱性が向上し、かつ、プライマーエクステンションの長さと効率が向上したdnaポリメラーゼ |
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EP (1) | EP0693078B1 (ja) |
JP (2) | JP2885324B2 (ja) |
AT (1) | ATE181573T1 (ja) |
AU (1) | AU671204B2 (ja) |
DE (1) | DE69419248T2 (ja) |
DK (1) | DK0693078T3 (ja) |
ES (1) | ES2136730T3 (ja) |
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EP0693078A4 (en) | 1997-06-25 |
WO1994026766A1 (en) | 1994-11-24 |
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AU6246494A (en) | 1994-12-12 |
US5436149A (en) | 1995-07-25 |
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DK0693078T3 (da) | 2000-01-24 |
JPH11239492A (ja) | 1999-09-07 |
ES2136730T3 (es) | 1999-12-01 |
AU671204B2 (en) | 1996-08-15 |
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ATE181573T1 (de) | 1999-07-15 |
NZ262663A (en) | 1997-09-22 |
DE69419248T2 (de) | 2000-01-27 |
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