JP2015171371A - 核酸を単離及び/又は精製するための溶解、結合及び/又は洗浄試薬 - Google Patents
核酸を単離及び/又は精製するための溶解、結合及び/又は洗浄試薬 Download PDFInfo
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- JP2015171371A JP2015171371A JP2015108530A JP2015108530A JP2015171371A JP 2015171371 A JP2015171371 A JP 2015171371A JP 2015108530 A JP2015108530 A JP 2015108530A JP 2015108530 A JP2015108530 A JP 2015108530A JP 2015171371 A JP2015171371 A JP 2015171371A
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- Prior art keywords
- polyoxyethylene
- ether
- binding
- volume
- lysis
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Classifications
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- C12N1/00—Microorganisms, e.g. protozoa; Compositions thereof; Processes of propagating, maintaining or preserving microorganisms or compositions thereof; Processes of preparing or isolating a composition containing a microorganism; Culture media therefor
- C12N1/06—Lysis of microorganisms
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- C12N15/00—Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor
- C12N15/09—Recombinant DNA-technology
- C12N15/10—Processes for the isolation, preparation or purification of DNA or RNA
- C12N15/1003—Extracting or separating nucleic acids from biological samples, e.g. pure separation or isolation methods; Conditions, buffers or apparatuses therefor
- C12N15/1006—Extracting or separating nucleic acids from biological samples, e.g. pure separation or isolation methods; Conditions, buffers or apparatuses therefor by means of a solid support carrier, e.g. particles, polymers
- C12N15/1013—Extracting or separating nucleic acids from biological samples, e.g. pure separation or isolation methods; Conditions, buffers or apparatuses therefor by means of a solid support carrier, e.g. particles, polymers by using magnetic beads
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- C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
- C12Q1/68—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving nucleic acids
- C12Q1/6806—Preparing nucleic acids for analysis, e.g. for polymerase chain reaction [PCR] assay
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Abstract
Description
−少なくとも一つのカオトロピック化合物、
−トリス(ヒドロキシメチル)アミノメタン(トリス;TRIS)、N-(トリ(ヒドロキシメチル)メチル)グリシン(トリシン;Tricine)、N,N-ビス(2-ヒドロキシエチル)グリシン(ビシン;BICINE)、N-(2-ヒドロキシエチル)ピペラジン-N'-(2-エタンスルホン酸)(ヘペス;HEPES)、ピペラジン-1,4-ビス(2-エタンスルホン酸)(PIPES)、N-シクロヘキシル-2-アミノエタンスルホン酸(チェス;CHES)、2-(N-モルフォリノ)エタンスルホン酸(メス;MES)、3-(N-モルフォリノ)プロパンスルホン酸(モップス;MOPS)、及び/又は、リン酸バッファーを含む群から好ましくは選択される、少なくとも一つのバッファー化合物、及び、
−該試薬の全体積に対して≧8%重量/体積から≦50%重量/体積の範囲で、ポリオキシエチレン脂肪アルコールエーテル、ポリオキシエチレンアルキルフェニルエーテル、及び/又は、ポリオキシエチレン-ポリオキシプロピレンブロックコポリマーを含む群から選択される、少なくとも一つのポリオキシエチレン系非イオン性界面活性剤、
を含む試薬が提供される。
a)生物サンプルを溶解すること、
b)カオトロピック化合物及び/又は分枝又は非分枝アルカノールの存在下で、一つ以上の酸化ケイ素化合物に基づく基質上に放出された核酸(released nucleic acid(s))を固定すること、
c)基質上に固定された核酸を任意に洗浄すること、
d)結合核酸を任意に取り出すこと、
但し、溶解及び/又は固定は、溶解及び/又は結合組成物の存在下で実施され、該組成物は:
−少なくとも一つのカオトロピック化合物、及び、
−該組成物の全体積に対し、≧0.1%重量/体積から≦50%重量/体積の範囲で、ポリオキシエチレン脂肪アルコールエーテル、ポリオキシエチレンアルキルフェニルエーテル、及び/又はポリオキシエチレン-ポリオキシプロピレンブロックコポリマーを含む群から選択される、少なくとも一つのポリオキシエチレン系非イオン性界面活性剤、
を含む。
20%(w/v)ツイーン20(Tween 20(R))(フルカ;Fluka)、グアニジンイソチオシアネート、及びトリス(ヒドロキシメチル)アミノメタンを含む溶解試薬A、及び、ツイーン20(Tween 20(R))を20%(w/v)ブリッジ58(Brij(R) 58)(シグマ;Sigma)で置換した溶解試薬Bを、再蒸留水において新たに調製し、密封容器において、25℃及び50℃で33週間保存した。
陰性、すなわち、HBVウィルス非含有のヒト血漿を、104sgU/mLのB型肝炎ウィルス(HBV)と混ぜ合わせた。市販の自動プラットフォーム・キアシンホニー(QIAsymphony(R))(キアゲン;Qiagen)を用い、血漿サンプルからウィルス核酸を精製するための自動化プロトコールにより、各場合において1、000・kの血漿サンプルからウィルスDNAを抽出した。
グアニジンイソチオシアネート、トリス(ヒドロキシメチル)アミノメタン、及び20%(w/v)ブリッジ58(Brij(R) 58)(シグマ;Sigma)を含む溶解試薬B、及びブリッジ58(Brij(R) 58)を、20%(w/v)ツイーン20(Tween(R) 20)で置換した溶解試薬Aを、それぞれ、密封容器において50℃で10週間保存した。
Claims (15)
- 溶解、結合及び/又は洗浄試薬であって、
−少なくとも一つのカオトロピック化合物、
−トリス(ヒドロキシメチル)アミノメタン、N-(トリ(ヒドロキシメチル)メチル)グリシン、N,N-ビス(2-ヒドロキシエチル)グリシン、3-(N-モルフォリノ)プロパンスルホン酸、N-(2-ヒドロキシエチル)ピペラジン-N'-(2-エタンスルホン酸)、ピペラジン-1,4-ビス(2-エタンスルホン酸)、N-シクロヘキシル-2-アミノエタンスルホン酸、2-(N-モルフォリノ)エタンスルホン酸、及び/又はリン酸バッファーを含む群から好ましくは選択される、少なくとも一つのバッファー化合物、及び、
−該試薬の全体積に対して、≧8%重量/体積から≦50%重量/体積の範囲で、ポリオキシエチレン脂肪アルコールエーテル、ポリオキシエチレンアルキルフェニルエーテル、及び/又はポリオキシエチレン-ポリオキシプロピレンブロックコポリマーを含む群から選択される、少なくとも一つのポリオキシエチレン系非イオン性界面活性剤、
を含む試薬。 - ポリオキシエチレン脂肪アルコールエーテルは、6から22の炭素原子を有する脂肪アルコール成分を含み、かつ2から150の(CH2CH2O)単位を含むポリオキシエチレン成分を含み、ポリオキシエチレン脂肪アルコールエーテルは、ポリオキシエチレンラウリルエーテル、ポリオキシエチレンセチルエーテル、ポリオキシエチレンステアリルエーテル、及び/又はポリオキシエチレンオレイルエーテルを含む群から好ましくは選択されることを特徴とする、請求項1に記載の溶解、結合及び/又は洗浄試薬。
- ポリオキシエチレン脂肪アルコールエーテルは、ポリオキシエチレンラウリルエーテルではないことを特徴とする、請求項1又は2に記載の溶解、結合及び/又は洗浄試薬。
- ポリオキシエチレンアルキルフェニルエーテルは、ポリオキシエチレンノニルフェニルエーテル及び/又はポリオキシエチレンイソオクチルフェニルエーテルを含む群から選択されることを特徴とする、前記請求項のいずれか1項に記載の溶解、結合及び/又は洗浄試薬。
- 溶解、結合及び/又は洗浄試薬は、試薬の全体積に対し、≧9%重量/体積から≦40%重量/体積の範囲、好ましくは≧10%重量/体積から≦30%重量/体積の範囲、優先的には≧15%重量/体積から≦20%重量/体積の範囲において、非イオン性界面活性剤を含むことを特徴とする、前記請求項のいずれか1項に記載の溶解、結合及び/又は洗浄試薬。
- カオトロピック化合物は、ヨウ化ナトリウム、過塩素酸ナトリウム、グアニジン塩酸塩、グアニジンチオシアネート、グアニジンイソチオシアネート、及び/又はその二つ以上の塩の混合物を含む群から好ましくは選択される、ナトリウム塩又はグアニジン塩であることを特徴とする、前記請求項のいずれか1項に記載の溶解、結合及び/又は洗浄試薬。
- 結合試薬は、メタノール、エタノール、イソプロパノール、n-プロパノール、n-ブタノール、分枝又は非分枝ブタノール又はペンタノール、及び/又はそれらの混合物を含む群から好ましくは選択される、分枝又は非分枝アルカノール、好ましくは1から5の炭素原子を有する分枝又は非分枝アルカノールを含むことを特徴とする、前記請求項のいずれか1項に記載の溶解、結合及び/又は洗浄試薬。
- 核酸を単離及び/又は精製するための、前記請求項のいずれか1項に記載の溶解、結合及び/又は洗浄試薬の使用。
- 核酸含有生物サンプルから核酸を単離及び/又は精製するための方法であって、以下の方法工程を含む方法:
a)生物サンプルを溶解すること、
b)カオトロピック化合物及び/又は分枝又は非分枝アルカノールの存在下で、一つ以上の酸化ケイ素化合物に基づく基質上に放出された核酸を固定すること、
c)基質上に固定された核酸を任意に洗浄すること、
d)結合核酸を任意に取り出すこと、
但し、溶解及び/又は固定は、溶解及び/又は結合組成物の存在下で実施され、該組成物は:
−少なくとも一つのカオトロピック化合物、及び、
−該組成物の全体積に対し、≧0.1%重量/体積から≦50%重量/体積の範囲で、ポリオキシエチレン脂肪アルコールエーテル、ポリオキシエチレンアルキルフェニルエーテル、及び/又はポリオキシエチレン-ポリオキシプロピレンブロックコポリマーを含む群から選択される、少なくとも一つのポリオキシエチレン系非イオン性界面活性剤、
を含む。 - ポリオキシエチレン脂肪アルコールエーテルは、6から22の炭素原子を有する脂肪アルコール成分を含み、かつ2から150の(CH2CH2O)単位を含むポリオキシエチレン成分を含み、ポリオキシエチレン脂肪アルコールエーテルは、ポリオキシエチレンラウリルエーテル、ポリオキシエチレンセチルエーテル、ポリオキシエチレンステアリルエーテル、及び/又はポリオキシエチレンオレイルエーテルを含む群から好ましくは選択されることを特徴とする、請求項9に記載の方法。
- ポリオキシエチレン脂肪アルコールエーテルは、ポリオキシエチレンラウリルエーテルではないことを特徴とする、請求項9又は10に記載の方法。
- 溶解及び/又は結合組成物は、該組成物の全体積に対し、≧0.2%重量/体積から≦30%重量/体積の範囲、好ましくは≧3%重量/体積から≦10%重量/体積の範囲、優先的には≧3.2%重量/体積から≦8%重量/体積の範囲において、非イオン性界面活性剤を含むことを特徴とする、前記請求項のいずれか1項に記載の方法。
- 核酸含有生物サンプルから核酸を単離及び/又は精製するためのキットであって、請求項1から7のいずれか1項に記載の溶解、結合及び/又は洗浄試薬を含むキット。
- 生物サンプルの脂質を可溶化するための、ポリオキシエチレン脂肪アルコールエーテル、ポリオキシエチレンアルキルフェニルエーテル、及び/又はポリオキシエチレン-ポリオキシプロピレンブロックコポリマーを含む群から選択されるポリオキシエチレン系非イオン性界面活性剤、好ましくはポリオキシエチレンラウリルエーテル、ポリオキシエチレンセチルエーテル、ポリオキシエチレンステアリルエーテル、及び/又はポリオキシエチレンオレイルエーテルを含む群から選択されるポリオキシエチレン脂肪アルコールエーテルの使用。
- 保存安定的な結合、溶解、及び/又は洗浄試薬を調製するための、ポリオキシエチレン脂肪アルコールエーテル、ポリオキシエチレンアルキルフェニルエーテル、及び/又はポリオキシエチレン-ポリオキシプロピレンブロックコポリマーを含む群から選択されるポリオキシエチレン系非イオン性界面活性剤、好ましくはポリオキシエチレンラウリルエーテル、ポリオキシエチレンセチルエーテル、ポリオキシエチレンステアリルエーテル、及び/又はポリオキシエチレンオレイルエーテルを含む群から選択されるポリオキシエチレン脂肪アルコールエーテルの使用。
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