JP5743135B2 - タンパク質翻訳後修飾を測定するための方法及び装置 - Google Patents
タンパク質翻訳後修飾を測定するための方法及び装置 Download PDFInfo
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- JP5743135B2 JP5743135B2 JP2010527207A JP2010527207A JP5743135B2 JP 5743135 B2 JP5743135 B2 JP 5743135B2 JP 2010527207 A JP2010527207 A JP 2010527207A JP 2010527207 A JP2010527207 A JP 2010527207A JP 5743135 B2 JP5743135 B2 JP 5743135B2
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- 229910052727 yttrium Inorganic materials 0.000 description 1
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
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Description
NAD+キナーゼが、アクセプター化合物として、および制御化合物として働く。アデノシン三リン酸が、ドナー化合物として働く。塩化マグネシウムおよび酢酸が、制御化合物として働く。リン酸化NADキナーゼが、アクセプター生成物として働く。アデノシン二リン酸が、ドナー生成物として働く。水中のNADキナーゼ[880マイクロモル(micromolar)]の溶液100マイクロリットルを、水中のアデノシン三リン酸 [5マイクロモル]、塩化マグネシウム[10マイクロモル]、トリス(ヒドロキシメチル)アミノメタン[100マイクロモル、pH 7.5]の溶液200マイクロリットルと君合わせることにより溶液を調製する(図1、ボックス1)。反応させて10秒間インキュベートし、その後、水中の5%酢酸の溶液200マイクロリットルを添加した(図1、ボックス2)。Millipore Corporate Headquarters, 290 Concord Road, Billerica, MA 01821, USAから購入可能な、Microcon 3000分子量カットオフウルトラフィルター(molecular weight cut off (MWCO) ultrafilter)を使用して、アデノシン三リン酸およびアデノシン二リン酸から、アクセプター生成物を分離した。50ワットクロムアノードX線チューブ(50 watt chromium anode x-ray tube)およびシリコンドリフト検出器(silicon drift detector)を備えたX線蛍光分光計を使用して、NADPを計測した。硫黄X線蛍光シグナルに対するリンX線蛍光シグナルの比率は、NADに対して0.030501であり、リン酸化NADに対して0.264657であった。
一連のペプチドは、式:ポリスチレンビーズリンカー-システイン1-xxx1-xxx2-xxx3-xxx4-システイン2[前記式中、xxx1、xxx2、xxx3、およびxxx4は、独立に、ドナー化合物として働くアミノ酸{アラニン、アルギニン、アスパラギン、アスパラギン酸、グルタミン、グルタミン酸、グリシン、ヒスチジン、イソロイシン、ロイシン、リシン、フェニルアラニン、プロリン、セリン、トレオニン、トリプトファン、チロシン、およびバリン}より選択される]を有する。「ポリスチレンビーズリンカー」は、Rapp Polymere GmbH, Ernst-Simon-Str. 9, D 72072 Tubingen, Germanyより購入可能なもののような、AM樹脂(AM resin)を指す。水は、アクセプター化合物として働く。トリプシンおよびK2PtCl4は、制御化合物として働く。式:ポリスチレンビーズリンカー-システイン1-xxx1-xxx2-xxx3-xxx4-CO2Hはドナー生成物として働く[前記式中、xxx1、xxx2、xxx3、およびxxx4は、独立に、ドナー化合物として働くアミノ酸{アラニン、アルギニン、アスパラギン、アスパラギン酸、グルタミン、グルタミン酸、グリシン、ヒスチジン、イソロイシン、ロイシン、リシン、フェニルアラニン、プロリン、セリン、トレオニン、トリプトファン、チロシン、バリン、およびアミノ酸なし}より選択される]。式:ポリスチレンビーズ:H2N-xxx1-xxx2-xxx3-xxx4-システインを有するペプチドはドナー生成物として働いた[前記式中、xxx1、xxx2、xxx3、およびxxx4は、独立に、アクセプター生成物として働くアミノ酸{アラニン、アルギニン、アスパラギン、アスパラギン酸、グルタミン、グルタミン酸、グリシン、ヒスチジン、イソロイシン、ロイシン、リシン、フェニルアラニン、プロリン、セリン、トレオニン、トリプトファン、チロシン、バリン、およびアミノ酸なし}より選択される]。樹脂結合ペプチド[懸濁物中]およびK2PtCl4[50 mM]の溶液250マイクロリットルを調製した;この溶液を4時間インキュベートし、その後500マイクロリットルのブタトリプシン[45マイクロモル]および炭酸アンモニウム[40マイクロモル]を添加した(図1、ボックス1)。前記溶液を16時間インキュベートし(図1、ボックス2)、その後樹脂ビーズを濾過し、水で2回洗浄し、未反応ドナー化合物をすべて、前記アクセプター生成物から分離した(図1、ボックス3)。ドナー生成物を、60ワットロジウムアノードX線チューブおよびシリコンドリフト検出器を備えたX線蛍光分光計を使用して測定した(図1、ボックス4)。ロジウムX線蛍光シグナルに対する硫黄X線蛍光シグナルの比率をプロットし、図3にそのプロットしたデータを示す。ドナー化合物の対照サンプルを、等式:(Rh) = 0.0706(S) + 106.03[前記式中、(Rh)はロジウムX線蛍光シグナル、(S)は硫黄X線蛍光シグナルである]と記述される。このデータを、図3で「対照」と標識する。上記反応条件下におかれたドナー化合物の多くは、より高い硫黄X線蛍光シグナルに対するロジウムX線蛍光シグナルの比率を有し、異なる効率でトリプシンがcysteinβ2を除去したことを示した。このデータを、図3で「プロテアーゼに被爆」と標識する。上記反応条件下におかれたドナー化合物のうち、硫黄X線蛍光シグナルがゼロであるものはなく、すべてのビーズから完全にはトリプシンがcysteinβ1を除去していないことを示した。
Claims (20)
- a.少なくとも一つのアクセプター化合物と、少なくとも一つのドナー化合物と、ならびに、ドナー化合物とアクセプター化合物との間の反応に影響を及ぼすことが可能である少なくとも一つの制御化合物とを含む溶液を提供する工程であって、ドナー化合物は、アクセプター化合物に化学的要素を含む化合物部分を付与することが可能である工程;
b.溶液をインキュベートし、アクセプター化合物の一部をドナー化合物と反応させ、アクセプター生成物を形成する工程;
c.未反応ドナー化合物の少なくとも一部を、アクセプター生成物から分離する工程;ならびに
d.X線蛍光を使用して、アクセプター生成物およびドナー化合物のリストから選択される化合物の少なくとも一つを計測する工程
を含む、反応を解析する方法であって、
X線蛍光に供されるドナー化合物またはアクセプター生成物のサンプルが、X線蛍光に供されるドナー化合物またはアクセプター生成物のサンプルの総量に対して50%の量より多いサンプルを含む領域が0.005平方センチメートルより小さくなるように濃縮される方法。 - 制御化合物が、タンパク質、アミノ酸、ペプチド、触媒、炭水化物、金属、脂質、ヌクレオチド、ポリヌクレオチド、反応性酸素種、および反応性窒素種のリストより選択される少なくとも一つの種を含む、請求項1に記載の方法。
- 前記ドナー化合物が、8より大きい原子番号を有する化学的要素を含む、請求項2に記載の方法。
- 溶液が、少なくとも一つの付加的な制御化合物をさらに含む、請求項3に記載の方法。
- アクセプター分子が、水;ならびにペプチド、アミノ酸、アルコール、アルコキシド、アリールオキシド、芳香族アルコール、アミン、チオール、チオレート、ヌクレオチドのリストから選択される少なくとも一つの官能基を含む化合物;ならびにそれらの組み合わせのリストから選択される化合物を含む、請求項4に記載の方法。
- ドナー化合物が、無水物、エステル、アミド、イミド、ハロゲン化アシル、およびそれらの組み合わせのリストから選択される官能基を含む、請求項5に記載の方法。
- アクセプター生成物およびドナー化合物のリストから選択される少なくとも一つの化合物を、X線蛍光を使用して計測する前に、溶媒の少なくとも一部を除去する工程をさらに含む、請求項6に記載の方法。
- アクセプター化合物が、8より大きい原子番号を有しており、ドナー化合物からアクセプター化合物に付与されない少なくとも一つの化学的要素を含む、請求項7に記載の方法。
- 溶液が、100mmol/lより小さい濃度で存在するドナー化合物とアクセプター化合物のリストより選択される少なくとも一つの化合物を含む、請求項8に記載の方法。
- a.少なくとも一つのアクセプター化合物と、少なくとも一つのドナー化合物とを含む溶液を提供する工程であって、ドナー化合物は、化学的要素を含む化合物部分をアクセプター化合物に付与することが可能であり、かつ、エステル、無水物、イミド、ハロゲン化アシル、アミド、およびそれらの組み合わせから選択される官能基を含む、工程;
b.溶液をインキュベートし、アクセプター化合物の一部をドナー化合物と反応させ、アクセプター生成物を形成する工程;
c.未反応ドナー化合物の少なくとも一部を、アクセプター生成物から分離する工程;ならびに
d.アクセプター生成物およびドナー化合物のリストから選択される少なくとも一つの化合物を、X線蛍光を使用して計測する工程
を含む、タンパク質機能を解析する方法であって、
X線蛍光に供されるドナー化合物またはアクセプター生成物のサンプルが、X線蛍光に供されるドナー化合物またはアクセプター生成物のサンプルの総量に対して50%の量より多いサンプルを含む領域が0.005平方センチメートルより小さくなるように濃縮される方法。 - 溶液が、ドナー化合物とアクセプター化合物との間の反応に影響を及ぼすことが可能である少なくとも一つの制御化合物をさらに含む、請求項10に記載の方法。
- ドナー化合物とアクセプター化合物との間の反応の間に共有結合を形成する、請求項11に記載の方法。
- 溶液が、少なくとも一つの付加的な制御化合物をさらに含む、請求項12に記載の方法。
- ドナー化合物が、8より大きい原子番号を有している化学的要素を含む、請求項13に記載の方法。
- アクセプター生成物およびドナー化合物のリストから選択される少なくとも一つの化合物をX線蛍光を使用して計測する前に、溶媒の少なくとも一部を除去する工程をさらに含む、請求項14に記載の方法。
- a.少なくとも一つのアクセプター化合物と、少なくとも一つのドナー化合物とを含む溶液を提供する工程であって、ドナー化合物は、化学的要素を含む化合物部分をアクセプター化合物に提供することが可能である工程;
b.溶液をインキュベートし、アクセプター化合物の一部をドナー化合物と反応させ、アクセプター生成物を形成する工程;
c.未反応ドナー化合物の少なくとも一部を、生成化合物から分離する工程;
d.アクセプター生成物およびドナー化合物のリストから選択される少なくとも一つの化合物を、X線蛍光を使用して計測する工程;ならびに
e.少なくとも一つの付加的な解析方法を使用して、アクセプター生成物およびドナー化合物のリストから選択される少なくとも一つの化合物を計測する工程
を含む、タンパク質機能を解析する方法であって、
X線蛍光に供されるドナー化合物またはアクセプター生成物のサンプルが、X線蛍光に供されるドナー化合物またはアクセプター生成物のサンプルの総量に対して50%の量より多いサンプルを含む領域が0.005平方センチメートルより小さくなるように濃縮される方法。 - 溶液が、ドナー化合物とアクセプター化合物との間の反応に影響を及ぼすことが可能である少なくとも一つの制御化合物をさらに含む、請求項16に記載の方法。
- 溶液が、少なくとも一つの付加的な制御化合物をさらに含む、請求項17に記載の方法。
- ドナー化合物が、8より大きい原子番号を有している化学的要素を含む、請求項18に記載の方法。
- アクセプター生成物およびドナー化合物のリストから選択される少なくとも一つの化合物をX線蛍光を使用して計測する前に、溶媒の少なくとも一部を除去する工程をさらに含む、請求項19に記載の方法。
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WO2009023847A1 (en) | 2007-08-16 | 2009-02-19 | Caldera Pharmaceuticals, Inc. | Well plate |
PL3381359T3 (pl) | 2008-07-01 | 2021-08-16 | Icagen Llc | Sposób pomiaru transportu analitu przez bariery przy użyciu lampy rentgenowskiej |
US9063066B2 (en) | 2010-10-14 | 2015-06-23 | Xrpro Sciences, Inc. | Method for analysis using X-ray fluorescence |
WO2017184564A1 (en) | 2016-04-18 | 2017-10-26 | Icagen, Inc. | Sensors and sensor arrays for detection of analytes |
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US4436826A (en) | 1981-10-21 | 1984-03-13 | Wang Associates | Tagged immunoassay |
US4663277A (en) | 1983-05-20 | 1987-05-05 | Profile Diagnostic Sciences Inc. | Virus detection method and materials |
US5547839A (en) | 1989-06-07 | 1996-08-20 | Affymax Technologies N.V. | Sequencing of surface immobilized polymers utilizing microflourescence detection |
US5216126A (en) | 1991-06-19 | 1993-06-01 | Genentech, Inc. | Receptor polypeptides and their production and uses |
US6391590B1 (en) | 1991-10-21 | 2002-05-21 | The Regents Of The University Of California | Recombinant streptavidin-metallothionein chimeric protein having biological recognition specificity |
US6312893B1 (en) * | 1996-01-23 | 2001-11-06 | Qiagen Genomics, Inc. | Methods and compositions for determining the sequence of nucleic acid molecules |
US6344330B1 (en) | 1998-03-27 | 2002-02-05 | The Regents Of The University Of California | Pharmacophore recombination for the identification of small molecule drug lead compounds |
US6406921B1 (en) | 1998-07-14 | 2002-06-18 | Zyomyx, Incorporated | Protein arrays for high-throughput screening |
JP3785817B2 (ja) * | 1998-07-17 | 2006-06-14 | コニカミノルタホールディングス株式会社 | 放射線画像の画像処理装置 |
CA2439953A1 (en) * | 2001-03-08 | 2002-09-19 | Mark D. Bednarski | Stabilized therapeutic and imaging agents |
AU2002309083A1 (en) * | 2001-03-30 | 2002-10-15 | Biocrine Ab | Method for identifying drugs for the treatment of type ii diabetes |
US6858148B2 (en) | 2003-07-16 | 2005-02-22 | The Regents Of The University Of California | Method and apparatus for detecting chemical binding |
US9157875B2 (en) * | 2001-05-16 | 2015-10-13 | Benjamin P. Warner | Drug development and manufacturing |
US20080220441A1 (en) | 2001-05-16 | 2008-09-11 | Birnbaum Eva R | Advanced drug development and manufacturing |
US7858385B2 (en) * | 2001-05-16 | 2010-12-28 | Los Alamos National Security, Llc | Method for detecting binding events using micro-X-ray fluorescence spectrometry |
US7519145B2 (en) | 2002-07-25 | 2009-04-14 | Los Alamos National Security, Llc | Flow method and apparatus for screening chemicals using micro x-ray fluorescence |
WO2009023847A1 (en) | 2007-08-16 | 2009-02-19 | Caldera Pharmaceuticals, Inc. | Well plate |
PL3381359T3 (pl) | 2008-07-01 | 2021-08-16 | Icagen Llc | Sposób pomiaru transportu analitu przez bariery przy użyciu lampy rentgenowskiej |
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US20180237823A1 (en) | 2018-08-23 |
JP6297470B2 (ja) | 2018-03-20 |
JP2015033386A (ja) | 2015-02-19 |
US11561188B2 (en) | 2023-01-24 |
US20200157598A1 (en) | 2020-05-21 |
EP2201353A4 (en) | 2011-01-26 |
US10577642B2 (en) | 2020-03-03 |
WO2009042932A1 (en) | 2009-04-02 |
EP2201353A1 (en) | 2010-06-30 |
JP2010539944A (ja) | 2010-12-24 |
US20160201111A1 (en) | 2016-07-14 |
US9976172B2 (en) | 2018-05-22 |
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