JP2010510181A - 膜タンパク質抽出のためのイオン性液体の使用 - Google Patents
膜タンパク質抽出のためのイオン性液体の使用 Download PDFInfo
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- JP2010510181A JP2010510181A JP2009536620A JP2009536620A JP2010510181A JP 2010510181 A JP2010510181 A JP 2010510181A JP 2009536620 A JP2009536620 A JP 2009536620A JP 2009536620 A JP2009536620 A JP 2009536620A JP 2010510181 A JP2010510181 A JP 2010510181A
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- ionic liquid
- extraction
- bromide
- cation
- biological sample
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- 238000000034 method Methods 0.000 claims abstract description 40
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- 108090000623 proteins and genes Proteins 0.000 claims abstract description 35
- 239000012472 biological sample Substances 0.000 claims abstract description 28
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- 239000000203 mixture Substances 0.000 claims abstract description 25
- -1 tetrafluoroborate Chemical compound 0.000 claims description 109
- 125000004432 carbon atom Chemical group C* 0.000 claims description 38
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- 150000001450 anions Chemical class 0.000 claims description 6
- XYFCBTPGUUZFHI-UHFFFAOYSA-O phosphonium Chemical compound [PH4+] XYFCBTPGUUZFHI-UHFFFAOYSA-O 0.000 claims description 6
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- BIOMCBZBUCZUKG-UHFFFAOYSA-N 3-(4-methylmorpholin-4-ium-4-yl)propan-1-ol Chemical compound OCCC[N+]1(C)CCOCC1 BIOMCBZBUCZUKG-UHFFFAOYSA-N 0.000 claims description 4
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Abstract
Description
さらなる好ましい態様において、さらなる溶媒は水である。よって、本発明に従って、水溶解性イオン性液体が特に好ましく用いられる。
さらなる好ましい態様において、生体サンプルは、組織、細胞、細胞の培養および/または体液、細菌、真菌、ウイルスもしくは植物である。
好ましい態様において、前もって生体サンプルを溶解する。
好ましい態様において、機械的作用を、振とうまたは攪拌によって達成する。
さらなる好ましい態様において、複素環カチオンは、モルホリニウムカチオンまたはイミダゾリウムカチオンである。
さらなる好ましい態様において、少なくとも1種のイオン性液体および少なくとも1種のさらなる溶媒を含む混合物におけるイオン性液体の濃度は、0.02〜5重量%である。
一般的に、当業者に既知の全ての一般式K+A−のイオン性液体、特に水に溶解性であるものが、本発明の方法に適している。
[NR4]+ (1)
式中、
Rはそれぞれ互いに独立して、
H、ここで全ての置換基Rは同時にHであることはできず、
OR’、NR’2、ただし、式(1)において、最大1つの置換基RがOR’、NR’2であり、
1〜20C原子を有する直鎖または分岐アルキル、
2〜20C原子および1または2以上の二重結合を有する直鎖または分岐アルケニル、
2〜20C原子および1または2以上の三重結合を有する直鎖または分岐アルキニル
3〜7C原子を有する、飽和、部分的または完全に不飽和したシクロアルキルであり、これは1〜6C原子を有するアルキルで置換されてもよく、
で表現することができる。
[PR2 4]+ (2)
式中、
R2はそれぞれ互いに独立して、
H、OR’またはNR’2
1〜20C原子を有する直鎖または分岐アルキル、
2〜20C原子および1または2以上の二重結合を有する直鎖または分岐アルケニル、
2〜20C原子および1または2以上の三重結合を有する直鎖または分岐アルキニル
3〜7C原子を有する、飽和、部分的または完全に不飽和したシクロアルキルであり、これは1〜6C原子を有するアルキルで置換されてもよく、
で表現することができる。
[(R3R4N)−C(=SR5)(NR6R7)]+ (3)、
およびチオウロニウムカチオン式(4)
[(R3R4N)−C(=SR5)(NR6R7)]+ (4)、
式中、
R3〜R7はそれぞれ互いに独立して、
H、ここで、R5に関して水素は除外され、
1〜20C原子を有する直鎖または分岐アルキル、
2〜20C原子および1または2以上の二重結合を有する直鎖または分岐アルケニル、
2〜20C原子および1または2以上の三重結合を有する直鎖または分岐アルキニル
3〜7C原子を有する、飽和、部分的または完全に不飽和したシクロアルキルであり、これは1〜6C原子を有するアルキルで置換されてもよく、
で表現することができる。
[C(NR8R9)(NR10R11)(NR12R13)]+ (5)
式中、
R8〜R13はそれぞれ互いに独立して、
水素、−CN、NR’2、−OR’
1〜20C原子を有する直鎖または分岐アルキル、
2〜20C原子および1または2以上の二重結合を有する直鎖または分岐アルケニル、
2〜20C原子および1または2以上の三重結合を有する直鎖または分岐アルキニル
3〜7C原子を有する、飽和、部分的または完全に不飽和したシクロアルキルであり、これは1〜6C原子を有するアルキルで置換されてもよく、
で表現することができる。
置換基R1’〜R4’はそれぞれ独立して、
水素、−CN、−OR’、−NR’2、−P(O)R’2、−P(O)(OR’)2、−P(O)(NR’2)2、−C(O)R’、−C(O)OR’、
1〜20C原子を有する直鎖または分岐アルキル、
2〜20C原子および1または2以上の二重結合を有する直鎖または分岐アルケニル、
2〜20C原子および1または2以上の三重結合を有する直鎖または分岐アルキニル
3〜7C原子を有する、飽和、部分的または完全に不飽和したシクロアルキルであって、これは1〜6C原子を有するアルキルで置換されてもよく、
飽和、部分的または完全に不飽和したヘテロアリール、ヘテロアリール−C1〜C6−アルキルまたはアリール−C1〜C6−アルキルであり、
ここで、置換基R1’、R2’、R3’および/またはR4’は一緒に環を形成していてもよく、
のカチオンを用いることも可能である。
本発明によれば、式(1)〜(5)で表される化合物の好適な置換基RおよびR2〜R13は、水素以外には、好ましくは:C1〜C20、特にC1〜C14アルキル基、および、C1〜C6アルキル基、特にフェニル、により置換されていてもよい飽和または不飽和C3〜C7シクロアルキル基(すなわち、芳香族をも含む)である。
置換基RおよびR2は、特に好ましくは、メチル、エチル、イソプロピル、プロピル、ブチル、sec−ブチル、tert−ブチル、ペンチル、ヘキシル、オクチル、デシルまたはテトラデシルである。
一般的な限定なしに、かかるグアニジウムカチオンの例は:
である。
所望の場合、上記グアニジウムカチオンの炭素環または複素環はまた、C1〜C6アルキル、C1〜C6アルケニル、NO2、F、Cl、Br、I、OH、C1〜C6−アルコキシ、SCF3、SO2CF3、COOH、SO2NR’2、SO2X’またはSO3H、ここでXおよびR’は上記の意味を有し、置換もしくは非置換フェニル、または非置換もしくは置換複素環で置換されてもよい。
式中、Y=Sである:
で示される。
−OCH3、−OCH(CH3)2、−CH2OCH3、−CH2−CH2−O−CH3、−C2H4OCH(CH3)2、−C2H4SC2H5、−C2H4SCH(CH3)2、−S(O)CH3、−SO2CH3、−SO2C6H5、−SO2C3H7、−SO2CH(CH3)2、−SO2CH2CF3、−CH2SO2CH3、−O−C4H8−O−C4H9、−CF3、−C2F5、−C3F7、−C4F9、−C(CF3)3、−CF2SO2CF3、−C2F4N(C2F5)C2F5、−CHF2、−CH2CF3、−C2F2H3、−C3FH6、−CH2C3F7、−C(CFH2)3、−CH2C(O)OH、−CH2C6H5、−C(O)C6H5またはP(O)(C2H5)2である。
R’において、置換フェニルは、C1〜C6アルキル、C1〜C6アルケニル、NO2、F、Cl、Br、I、OH、C1〜C6−アルコキシ、SCF3、SO2CF3、COOH、SO2X’、SO2NR’’2またはSO3Hで置換されたフェニルであり、ここで、X’はF、ClまたはBrであり、R’’は、R’について定義したように、非‐、部分的にまたは完全にフッ素化されたC1〜C6アルキルまたはC3〜C7シクロアルキルであり、例えばo−、m−もしくはp−メチルフェニル、o−、m−もしくはp−エチルフェニル、o−、m−もしくはp−プロピルフェニル、o−、m−もしくはp−イソプロピルフェニル、o−、m−もしくはp−tert−ブチルフェニル、o−、m−もしくはp−ニトロフェニル、o−、m−もしくはp−ヒドロキシフェニル、o−、m−もしくはp−メトキシフェニル、o−、m−もしくはp−エトキシフェニル、o−、m−、p−(トリフルオロメチル)フェニル、o−、m−、p−(トリフルオロメトキシ)フェニル、o−、m−、p−(トリフルオロメチルスルホニル)フェニル、o−、m−もしくはp−フルオロフェニル、o−、m−もしくはp−クロロフェニル、o−、m−もしくはp−ブロモフェニル、o−、m−もしくはp−ヨードフェニル、
好ましいアンモニウム、ホスホニウム、イミダゾリウムまたはモルホリニウムカチオンにおける、極めて特に好ましい置換基R、R2、R1’〜R4’は、メチル、エチル、プロピル、ブチル、ヘキシル、デシル、ドデシル、オクタデシル、エトキシエチル、メトキシエチル、ヒドロキシエチルまたはヒドロキシプロピル基から選択される。
本発明は同様に、膜タンパク質、特にマルチ膜貫通型タンパク質を、生体サンプルからの抽出するための本発明によるキットの使用に関する。
さらなる言及なしに、当業者は上記説明をより広い範囲において利用することができると推測される。したがって、好ましい態様および例は単に、決して限定的ではない説明的記載であると解されるべきである。
ヒトMDA MB 468乳がん細胞をRPMI 1640培地(2.000mg/lのD−グルコース、110mg/lのピルビン酸ナトリウム、非必須アミノ酸、L−グルタミンなし、Gibco)において、市販のT75細胞培養ボトルにおいて50%コンフルエントまで、5%のCO2下、37℃で培養する。細胞スクレーパーを用いて、接着細胞をトリス緩衝塩化ナトリウム溶液(TBS)およびプロテアーゼ阻害剤(Calbiochem Protease Inhibitor Cocktail III)中に収穫する。第2抽出段階における、ポア形成剤(抽出緩衝液I)を用いた細胞質のタンパク質画分の放出後に膜タンパク質を単離する。画分1は、主に細胞質のタンパク質の可溶性タンパク質画分に相当する。
a)ダイマー受容体分子の基準として、抗−EGFRラビット抗体(Sc03, Santa Cruz1:100に希釈)、
b)7回膜貫通型透過タンパク質(7−TM)の基準として、抗Frizzled4抗体(R&D Systems MAB 194、1:500に希釈)。
c)第2基準タンパク質、カドヘリンEGF−lag7回膜貫通型透過受容体−3(CELSR3)抗体を用いる(Acris)。
d)検出のために第2抗体として、1:5000希釈したGeneral Electrics (GE)からの抗ラビット−POD抗体を用いるか、または1:5000希釈したPierceからの抗ラット−POD抗体を用いる。
ウエスタンブロットは、イオン性液体で抽出された膜タンパク質の未変性構造の保持を示す。
150 mM NaCl
pH 7.4
300mM スクロース
15mM NaCl
10mM Pipes(ピペラジン−1,4−ビス(2−エタンスルホン酸))
0.5mM EDTA
0.01875%のジギトニン
pH 7.4
300mM スクロース
15mM NaCl
10mM Pipes(ピペラジン−1,4−ビス(2−エタンスルホン酸))
0.5mM EDTA
2重量%のN−(3−ヒドロキシプロピル)−N−メチルモルホリニウムビス(トリフルオロメチルスルホニル)イミドまたは1−ドデシル−3−メチルイミダゾリウム塩化物
pH 7.4
Claims (17)
- 少なくとも1種のイオン性液体、または、少なくとも1種のイオン性液体と少なくとも1種のさらなる溶媒とを含む混合物の、生体サンプルからの膜タンパク質の抽出のための使用。
- イオン性液体およびさらなる溶媒を少なくとも含む混合物を、抽出のために用いることを特徴とする、請求項1に記載の使用。
- さらなる溶媒が水であることを特徴とする、請求項1または2に記載の使用。
- 2または3以上の膜貫通数を有するタンパク質であることを特徴とする、請求項1〜3のいずれかに記載の使用。
- 生体サンプルが組織、細胞、細胞培養物および/または体液、細菌、真菌、ウイルスもしくは植物であることを特徴とする、請求項1〜4のいずれかに記載の使用。
- 生体サンプルからの膜タンパク質抽出のための方法であって、一般式K+A−の少なくとも1種のイオン性液体または、一般式K+A−の少なくとも1種のイオン性液体および少なくとも1種のさらなる溶媒を含む混合物を、任意に機械的作用で、生体サンプルに添加することを特徴とする前記方法。
- 生体サンプルを前もって溶解することを特徴とする、請求項6に記載の方法。
- 生体サンプルの溶解を、洗剤、界面活性剤またはポア形成剤の添加によって行うことを特徴とする、請求項7に記載の方法。
- 機械的作用を振とうまたは攪拌によって達成することを特徴とする、請求項6〜8のいずれかに記載の方法。
- イオン性液体のアニオンA−が、ハロゲン化物、テトラフルオロホウ酸塩、ヘキサフルオロホウ酸塩、または一般式[N(Rf)2]−もしくは一般式[N(XRf)2]−のイミドを含む群から選択され、式中Rfは部分的にまたは完全にフッ素置換された1〜8C原子を有するアルキルを意味し、XはSO2またはCOを意味することを特徴とする、請求項6〜9のいずれかに記載の方法。
- イオン性液体のカチオンK+が、アンモニウム、ホスホニウム、ウロニウム、チオウロニウム、グアニジニウムカチオンまたは複素環カチオンを含む群から選択されることを特徴とする、請求項6〜10のいずれかに記載の方法。
- 複素環カチオンがモルホリニウムカチオンまたはイミダゾリウムカチオンであることを特徴とする、請求項11に記載の発明。
- 抽出を4〜37℃の温度で行うことを特徴とする、請求項6〜12のいずれかに記載の方法。
- 少なくとも1種のイオン性液体および少なくとも1種のさらなる溶媒を含む混合物におけるイオン性液体の濃度が、0.02〜5重量%であることを特徴とする、請求項6〜13のいずれかに記載の方法。
- イオン性液体が、N−(3−ヒドロキシプロピル)−N−メチルモルホリニウムビストリフルオロメチスルホニルイミド、4−(2−メトキシエチル)−4−メチルモルホリニウム臭化物、4−メチル−4−プロピルモルホリニウム臭化物、4−(2−エトキシエチル)−4−メチルモルホリニウム臭化物、4−(3−ヒドロキシプロピル)−4−メチルモルホリニウム臭化物、4−(2−ヒドロキシエチル)−4−メチルモルホリニウム臭化物、4−(3−メトキシプロピル)−4−メチルモルホリニウム臭化物、4−ブチル−4−プロピルモルホリニウム臭化物、トリヘキシル(テトラデシル)ホスホニウムテトラフルオロホウ酸塩、1−デシル−3−メチルイミダゾリウム臭化物、1−ドデシル−3−メチルイミダゾリウム塩化物、3−メチル−1−オクタデシルイミダゾリウムヘキサフルオロホウ酸塩またはこれらの混合物から選択されることを特徴とする、請求項6〜14のいずれかに記載の方法。
- 少なくとも1種のイオン性液体、または少なくとも1種のイオン性液体および少なくとも1種のさらなる溶媒を含む混合物、ならびに洗剤、界面活性剤および/またはポア形成剤の群から選択される少なくとも1種の溶解剤を含む、請求項6〜15のいずれかに記載の方法による膜タンパク質の抽出のためのキット。
- 生体サンプルから膜タンパク質を抽出するための、請求項16に記載のキットの使用。
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US20040031685A1 (en) * | 2002-08-14 | 2004-02-19 | Anderson Norman G. | Electrophoresis process using ionic liquids |
US20050279632A1 (en) * | 2002-08-14 | 2005-12-22 | Large Scale Proteomics Corporation | Electrophoresis process using ionic liquids |
JP2006348031A (ja) * | 2005-06-13 | 2006-12-28 | Merck Patent Gmbh | タンパク質抽出のためのイオン性液体の使用 |
CN1807446A (zh) * | 2006-02-27 | 2006-07-26 | 南京财经大学 | 用离子液体提取分离蛋白质和/或酶的方法 |
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JP2017502750A (ja) * | 2014-03-24 | 2017-01-26 | 金仕生物科技(常熟)有限公司 | 無細胞コラーゲン組織及び無細胞コラーゲン組織を含む人工弁膜の処理方法 |
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EP2089414B1 (de) | 2013-03-06 |
AU2007321472A1 (en) | 2008-05-22 |
US8143381B2 (en) | 2012-03-27 |
CA2669805A1 (en) | 2008-05-22 |
DE102006054329A1 (de) | 2008-05-21 |
US20100029917A1 (en) | 2010-02-04 |
EP2089414A1 (de) | 2009-08-19 |
JP5266244B2 (ja) | 2013-08-21 |
WO2008058604A1 (de) | 2008-05-22 |
CA2669805C (en) | 2016-05-17 |
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