JP2008506932A - 核酸のより効率的な単離のための器具および方法 - Google Patents
核酸のより効率的な単離のための器具および方法 Download PDFInfo
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- JP2008506932A JP2008506932A JP2007520771A JP2007520771A JP2008506932A JP 2008506932 A JP2008506932 A JP 2008506932A JP 2007520771 A JP2007520771 A JP 2007520771A JP 2007520771 A JP2007520771 A JP 2007520771A JP 2008506932 A JP2008506932 A JP 2008506932A
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- 108020004707 nucleic acids Proteins 0.000 title claims abstract description 59
- 102000039446 nucleic acids Human genes 0.000 title claims abstract description 59
- 150000007523 nucleic acids Chemical class 0.000 title claims abstract description 59
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000002955 isolation Methods 0.000 title description 19
- 238000005406 washing Methods 0.000 claims abstract description 17
- 239000012528 membrane Substances 0.000 claims description 39
- 239000000872 buffer Substances 0.000 claims description 29
- 230000027455 binding Effects 0.000 claims description 23
- 238000010828 elution Methods 0.000 claims description 15
- 239000000463 material Substances 0.000 claims description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 12
- 239000012139 lysis buffer Substances 0.000 claims description 10
- 239000012149 elution buffer Substances 0.000 claims description 8
- 239000011148 porous material Substances 0.000 claims description 7
- 238000006386 neutralization reaction Methods 0.000 claims description 4
- 238000004587 chromatography analysis Methods 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000011534 wash buffer Substances 0.000 claims description 3
- DNIAPMSPPWPWGF-GSVOUGTGSA-N (R)-(-)-Propylene glycol Chemical compound C[C@@H](O)CO DNIAPMSPPWPWGF-GSVOUGTGSA-N 0.000 claims description 2
- 238000005342 ion exchange Methods 0.000 claims description 2
- 238000004255 ion exchange chromatography Methods 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims 1
- 239000006143 cell culture medium Substances 0.000 claims 1
- 238000002360 preparation method Methods 0.000 description 45
- 230000003196 chaotropic effect Effects 0.000 description 30
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 22
- 150000003839 salts Chemical class 0.000 description 22
- 238000001914 filtration Methods 0.000 description 20
- 239000013612 plasmid Substances 0.000 description 20
- 239000007858 starting material Substances 0.000 description 15
- 239000006166 lysate Substances 0.000 description 13
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 10
- 230000009089 cytolysis Effects 0.000 description 10
- 239000000377 silicon dioxide Substances 0.000 description 10
- 241000588724 Escherichia coli Species 0.000 description 9
- 239000007787 solid Substances 0.000 description 8
- 238000010790 dilution Methods 0.000 description 7
- 239000012895 dilution Substances 0.000 description 7
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- 239000011543 agarose gel Substances 0.000 description 5
- 239000012148 binding buffer Substances 0.000 description 5
- 239000011521 glass Substances 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000004568 DNA-binding Effects 0.000 description 3
- 102000035195 Peptidases Human genes 0.000 description 3
- 108091005804 Peptidases Proteins 0.000 description 3
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- 230000001580 bacterial effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- NLKNQRATVPKPDG-UHFFFAOYSA-M potassium iodide Chemical compound [K+].[I-] NLKNQRATVPKPDG-UHFFFAOYSA-M 0.000 description 3
- 108090000623 proteins and genes Proteins 0.000 description 3
- 102000004169 proteins and genes Human genes 0.000 description 3
- FVAUCKIRQBBSSJ-UHFFFAOYSA-M sodium iodide Chemical compound [Na+].[I-] FVAUCKIRQBBSSJ-UHFFFAOYSA-M 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000007399 DNA isolation Methods 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000008280 blood Substances 0.000 description 2
- 210000004369 blood Anatomy 0.000 description 2
- 239000000969 carrier Substances 0.000 description 2
- 239000012876 carrier material Substances 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 239000012634 fragment Substances 0.000 description 2
- PJJJBBJSCAKJQF-UHFFFAOYSA-N guanidinium chloride Chemical compound [Cl-].NC(N)=[NH2+] PJJJBBJSCAKJQF-UHFFFAOYSA-N 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- QKNYBSVHEMOAJP-UHFFFAOYSA-N 2-amino-2-(hydroxymethyl)propane-1,3-diol;hydron;chloride Chemical compound Cl.OCC(N)(CO)CO QKNYBSVHEMOAJP-UHFFFAOYSA-N 0.000 description 1
- NKDFYOWSKOHCCO-YPVLXUMRSA-N 20-hydroxyecdysone Chemical compound C1[C@@H](O)[C@@H](O)C[C@]2(C)[C@@H](CC[C@@]3([C@@H]([C@@](C)(O)[C@H](O)CCC(C)(O)C)CC[C@]33O)C)C3=CC(=O)[C@@H]21 NKDFYOWSKOHCCO-YPVLXUMRSA-N 0.000 description 1
- 229920000936 Agarose Polymers 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical class N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- KCXVZYZYPLLWCC-UHFFFAOYSA-N EDTA Chemical compound OC(=O)CN(CC(O)=O)CCN(CC(O)=O)CC(O)=O KCXVZYZYPLLWCC-UHFFFAOYSA-N 0.000 description 1
- 101710093543 Probable non-specific lipid-transfer protein Proteins 0.000 description 1
- 239000000061 acid fraction Substances 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000007853 buffer solution Substances 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical class [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004113 cell culture Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 230000001627 detrimental effect Effects 0.000 description 1
- 238000000502 dialysis Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000011013 endotoxin removal Methods 0.000 description 1
- 238000012869 ethanol precipitation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000005337 ground glass Substances 0.000 description 1
- ZJYYHGLJYGJLLN-UHFFFAOYSA-N guanidinium thiocyanate Chemical compound SC#N.NC(N)=N ZJYYHGLJYGJLLN-UHFFFAOYSA-N 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 230000003834 intracellular effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 238000010369 molecular cloning Methods 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- XAEFZNCEHLXOMS-UHFFFAOYSA-M potassium benzoate Chemical compound [K+].[O-]C(=O)C1=CC=CC=C1 XAEFZNCEHLXOMS-UHFFFAOYSA-M 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 239000012460 protein solution Substances 0.000 description 1
- 229940024999 proteolytic enzymes for treatment of wounds and ulcers Drugs 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 238000005185 salting out Methods 0.000 description 1
- 239000012047 saturated solution Substances 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 235000009518 sodium iodide Nutrition 0.000 description 1
- BAZAXWOYCMUHIX-UHFFFAOYSA-M sodium perchlorate Chemical compound [Na+].[O-]Cl(=O)(=O)=O BAZAXWOYCMUHIX-UHFFFAOYSA-M 0.000 description 1
- 229910001488 sodium perchlorate Inorganic materials 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000003612 virological effect Effects 0.000 description 1
- 239000002076 α-tocopherol Substances 0.000 description 1
- GVJHHUAWPYXKBD-IEOSBIPESA-N α-tocopherol Chemical compound OC1=C(C)C(C)=C2O[C@@](CCC[C@H](C)CCC[C@H](C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-IEOSBIPESA-N 0.000 description 1
- 235000004835 α-tocopherol Nutrition 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
- B01D15/36—Selective adsorption, e.g. chromatography characterised by the separation mechanism involving ionic interaction
- B01D15/361—Ion-exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
- B01D15/08—Selective adsorption, e.g. chromatography
- B01D15/10—Selective adsorption, e.g. chromatography characterised by constructional or operational features
- B01D15/12—Selective adsorption, e.g. chromatography characterised by constructional or operational features relating to the preparation of the feed
- B01D15/125—Pre-filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
- B01J20/28033—Membrane, sheet, cloth, pad, lamellar or mat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28078—Pore diameter
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28078—Pore diameter
- B01J20/28085—Pore diameter being more than 50 nm, i.e. macropores
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- 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
- C12N15/1017—Extracting or separating nucleic acids from biological samples, e.g. pure separation or isolation methods; Conditions, buffers or apparatuses therefor by filtration, e.g. using filters, frits, membranes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/80—Aspects related to sorbents specially adapted for preparative, analytical or investigative chromatography
- B01J2220/86—Sorbents applied to inner surfaces of columns or capillaries
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/28—Preparing specimens for investigation including physical details of (bio-)chemical methods covered elsewhere, e.g. G01N33/50, C12Q
- G01N1/40—Concentrating samples
- G01N1/405—Concentrating samples by adsorption or absorption
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/50—Conditioning of the sorbent material or stationary liquid
- G01N30/52—Physical parameters
- G01N2030/524—Physical parameters structural properties
- G01N2030/527—Physical parameters structural properties sorbent material in form of a membrane
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/96—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation using ion-exchange
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/10—Composition for standardization, calibration, simulation, stabilization, preparation or preservation; processes of use in preparation for chemical testing
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T436/00—Chemistry: analytical and immunological testing
- Y10T436/17—Nitrogen containing
- Y10T436/177692—Oxides of nitrogen
- Y10T436/178459—Only nitrogen dioxide
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- Saccharide Compounds (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
【選択図】なし
Description
a.入口開口と出口開口を有し、さらに下記bに記載の中空体(2)に配 置されている開通中空体(1)
b.入口開口と出口開口を有し、その内部に取り付けられた1又はそれ以 上の膜を有する開通中空体(2)
大腸菌からのプラスミドDNAの単離用プロトコール:
プラスミドpCMVβ(BDバイオサイエンス(BD Biosciences)社からのDH5α/pCMVβ)を有する25mlの大腸菌DH5α−の培養。
(2)2mlの溶解緩衝液を加えて、注意深く混合する。約3分間溶解する。
(3)2mlの中性化緩衝液を加えて、ひっくり返すことにより混合する(1分間)。
(4)シリカ(クイアフィルター(QIAfilter) キアゲン)を含むろ過カラムに原溶解物を置き、室温で3分間培養し、原溶解物をカラム材料内に圧し通す。
(5)スピンカラム上に10mlの希釈用チューブを置き、そしてQIAvac(登録商標)(キアゲン)上に配置する。
(6)溶解物に2.5mlのイソプロパノールを加えて、よく混合して、そしてカラム上に置く。
(7)真空の助力により2分間カラム材料を通して混合物液を吸う。
(8)希釈用チューブを廃棄する。
(9)回収用チューブ(回収容器)上にシリカ膜を含むスピンカラムを置く。
(10)750μlの緩衝液PE(キアゲン、市販のアルコール洗浄緩衝液)を加えることにより洗浄し、14,000rpmで1分間遠心分離する。
(11)緩衝液残留物を除去するために14,000rpmで1分間、一度以上遠心分離する。
(12)スピンカラムを1.5mlのエッペンドルフチューブに交換する。
(13)溶出のために、200μlの溶出緩衝液(EB)、例えば市販の溶出緩衝液TEを膜の上にピペットで加え、1分間置き、そして遠心分離する(14,000rpmで1分間)。
上に挙げた例に関して、下記のシリカを基礎とした製品を用いた参考調製を実施した:
1)インバイテック・インビソーブ・プラスミド・ミディ・キット(Invitek Invisorb Plasmid Midi Kit) (インバイテック),
2)シグマ・ジーンエルート・EF・ミディ・キット(SIGMA GeneElute EF Midi Kit)(シグマ(SIGMA-ALDRICH)),
3)ストラタジェン・ストラタプレップ・EF・ミディ(Stratagene Strataprep EF Midi)(ストラタジェン),
4)本発明に係る器具
大腸菌からのプラスミドDNAの単離用プロトコール。
プラスミドpCMVβ(BDバイオサイエンス社からの、DH5α/pCMVβ)を有する100mlの大腸菌DH5α−の培養。
(1)5mlの再懸濁緩衝液で細菌ペレットを再懸濁する(3分)。
(2)5mlの溶解緩衝液を加えて、注意深く混合する。約3分間溶解する。
(3)5mlの中性化緩衝液を加えて、ひっくり返すことにより混合する(1分間)。
(4)シリカ(クイアフィルター キアゲン)を含むろ過カラムに原溶解物を置き、室温で3分間培養し、原溶解物をカラム材料内に圧し通す。
(5)スピンカラム上に20mlの希釈用チューブを置き、そしてQIAvac(登録商標)(キアゲン社)上に配置する。
(6)溶解物に7mlのイソプロパノールを加えて、よく混合して、そしてカラム上に置く。
(7)真空の助力により2分間カラム材料を通して混合物液を吸う。
(8)希釈用チューブを廃棄する。
(9)回収用チューブ(回収容器)上にシリカ膜を含むスピンカラムを置く。
(10)750μlの緩衝液PE(キアゲン社、市販のアルコール洗浄緩衝液)を加えることにより洗浄し、14,000rpmで1分間遠心分離する。
(11)緩衝液残留物を除去するために14,000rpmで1分間、一度以上遠心分離する。
(12)スピンカラムを1.5mlのエッペンドルフチューブに交換する。
(13)溶出のために、200μlの溶出緩衝液(EB)、例えば市販の溶出緩衝液TEを膜の上にピペットで加え、1分間置き、そして遠心分離する(14,000rpmで1分間)。
1)インバイテック・インビソーブ・プラスミド・ミディ・キット (インバイテック)
2)本発明に係る器具
合成溶解物を、再懸濁緩衝液、溶解緩衝液および中性化緩衝液から製造した。各場合での6mlのこの「溶解物」をその後異なる量のプラスミドDNA(10μg〜250μg)と混合し、イソプロパノールを加えそして各場合にGF/D膜(ワットマン社から)の2つの層を含む本発明に係る器具のカラムに通して吸収した。
この実験は、本発明に係る器具のろ過速度におけるフィルター・マット(35g/m2)の効果を示す。
プラスミドpCMVβ(BDバイオサイエンス社からのDH5α/pCMVβ)を有する大腸菌DH5α−の100mlの培養。
Claims (7)
- a.入口開口と出口開口を有し、さらに下記bに記載の中空体(2)に配置されている開通中空体(1)と、
b.入口開口と出口開口を有し、その内部に膜を有する開通中空体(2)
とからなるカラム結合体を含む核酸を洗浄するための器具。 - 2〜4μmの範囲の孔径を有するガラス繊維膜が該中空体(2)内に膜として備え付けられていることを特徴とする、請求項1に記載の器具。
- 好ましくはGF/D膜が該ガラス繊維膜として用いられていることを特徴とする、請求項1または2に記載の器具。
- 該中空体(2)が、イオン交換クロマトグラフィーに適したカラムであって、該カラムの内部表面がイオン交換に適したクロマトグラフィー材料でコートされていることを特徴とする、請求項1〜3のいずれか1項に記載の器具。
- 下記a)〜c)の工程を含む核酸洗浄方法、
a)請求項1〜4のいずれか1項に記載の器具に核酸混合物を導入する工程、
b)1〜5の炭素原子を有する脂肪族系アルコール、好ましくはエタノール、の存在下で核酸を結合する工程、
c)それ自身知られている溶出緩衝液で該中空体(2)内の膜から核酸を溶出する工程。 - 請求項1〜4のいずれか1項に記載の中空体(1)および中空体(2)を有し、かつ、必要に応じて核酸を洗浄するために適した他の手段を含む、請求項5に記載の方法を実施するためのキット。
- 核酸を洗浄するための器具、少なくとも一つの細胞培養培地、少なくとも一つの再懸濁緩衝液、溶解緩衝液、中和緩衝液、洗浄緩衝液および/または溶出緩衝液を含む、請求項6に記載のキット。
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DE102004034474A DE102004034474A1 (de) | 2004-07-15 | 2004-07-15 | Vorrichtung und Verfahren zur effizienteren Isolierung von Nukleinsäuren |
PCT/EP2005/007726 WO2006008085A1 (de) | 2004-07-15 | 2005-07-15 | Vorrichtung und verfahren zur effizienteren isolierung von nukleinsäuren |
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EP1633868A1 (de) * | 2003-05-28 | 2006-03-15 | Qiagen GmbH | Verfahren zur gewinnung von plasmid-dna mittels eines wässrigen 2-phasensystems |
DE102004034474A1 (de) | 2004-07-15 | 2006-02-16 | Qiagen Gmbh | Vorrichtung und Verfahren zur effizienteren Isolierung von Nukleinsäuren |
EP2055385B1 (en) | 2007-10-31 | 2010-05-26 | Roche Diagnostics GmbH | Method and device for purifying nucleic acids |
US11274292B2 (en) | 2011-03-29 | 2022-03-15 | Phynexus, Inc. | Devices and methods for plasmid purification |
US10883100B2 (en) * | 2011-03-29 | 2021-01-05 | Phynexus, Inc | Devices and methods for plasmid purification |
DE102014216016A1 (de) | 2014-08-13 | 2016-02-18 | Axagarius Gmbh & Co. Kg | Vorrichtung zur Aufreinigung von Nukleinsäuren |
RU2729113C2 (ru) | 2014-11-21 | 2020-08-04 | Оккам Байолэбс, Инк. | Система и способ сбора образца нуклеиновой кислоты |
WO2023056558A1 (en) * | 2021-10-06 | 2023-04-13 | Fredsense Technologies Corp. | Methods and kits for isolating nucleic acids |
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US8685742B2 (en) | 2014-04-01 |
WO2006008085A1 (de) | 2006-01-26 |
JP5230196B2 (ja) | 2013-07-10 |
US20080039619A1 (en) | 2008-02-14 |
EP1771242A1 (de) | 2007-04-11 |
EP1771242B1 (de) | 2020-04-22 |
DE102004034474A1 (de) | 2006-02-16 |
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