JP2017501108A - 5−ホルミルシトシン特異的な化学標識法及びその利用 - Google Patents
5−ホルミルシトシン特異的な化学標識法及びその利用 Download PDFInfo
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- JP2017501108A JP2017501108A JP2016516881A JP2016516881A JP2017501108A JP 2017501108 A JP2017501108 A JP 2017501108A JP 2016516881 A JP2016516881 A JP 2016516881A JP 2016516881 A JP2016516881 A JP 2016516881A JP 2017501108 A JP2017501108 A JP 2017501108A
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- formylcytosine
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- hydrocarbyl
- sequencing
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- 238000004557 single molecule detection Methods 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000012086 standard solution Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
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- LMBFAGIMSUYTBN-MPZNNTNKSA-N teixobactin Chemical compound C([C@H](C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H](CCC(N)=O)C(=O)N[C@H]([C@@H](C)CC)C(=O)N[C@@H]([C@@H](C)CC)C(=O)N[C@@H](CO)C(=O)N[C@H]1C(N[C@@H](C)C(=O)N[C@@H](C[C@@H]2NC(=N)NC2)C(=O)N[C@H](C(=O)O[C@H]1C)[C@@H](C)CC)=O)NC)C1=CC=CC=C1 LMBFAGIMSUYTBN-MPZNNTNKSA-N 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
- 230000005026 transcription initiation Effects 0.000 description 1
- 230000005945 translocation Effects 0.000 description 1
- 238000007039 two-step reaction Methods 0.000 description 1
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Abstract
Description
反応産物I、II、又はIIIに特異的な吸収スペクトル又は蛍光発光スペクトルを用いることで、未知の核酸試料中の5-ホルミルシトシン塩基の定量分析を行うことができる。
(2.3 g、36 mmol、2当量)を100 mLの乾燥DMSOに溶解し、5-(2-アジドエチル)-1,3-インダンジオン(3.7 g、18 mmol)を添加した。80℃で20分間反応を行った。反応後、300 mLの水を溶液に添加した。その後、溶液をジエチルエーテルで抽出した(3×400 mL)。抽出物を無水硫酸ナトリウムで乾燥させ、濃縮し、シリカゲルのカラムクロマトグラフィーに供し、石油エーテル/ジクロロメタン1:1で溶出することで、明るい黄色の固体(680 mg、18 %)を得た。1H NMR (300MHz, CDCl3) δ 7.94 (d, J=7.8 Hz, 1H), 7.82 (s, 1H), 7.70 (d, J=7.8 Hz, 1H), 3.62 (t, J=6.6 Hz, 2H), 3.24 (s, 2H), 3.06 (t, J=6.6Hz, 2H), 13C NMR (75MHz, CDCl3) δ 197.6, 197.1, 147.4, 144.1, 142.4, 136.7, 123.8, 123.4, 51.9, 45.6, 35.9; MS(ESI) [M+H]+, 216.2。
Claims (15)
- 5-ホルミルシトシン又はその1-置換誘導体を特異的に化学標識する方法であって、
活性メチレン化合物であって、側鎖活性基R1-CH2-R2を有するものを5-ホルミルシトシン又はその1-置換誘導体と反応させる工程を有し、ここで
脱水素縮合反応が、前記活性メチレン化合物であって側鎖活性基を有するものと、前記5-ホルミルシトシン又はその1-置換誘導体におけるシトシンの5-ホルミル基との間に生じ、
また同時に前記活性メチレン化合物の側鎖活性基と前記5-ホルミルシトシン又はその1-置換誘導体におけるシトシンの4-アミノ基との間で分子内反応が起きることで、下記反応式に示されるように環が閉じられ:
方法。 - 請求項1に記載の方法であって、
前記側鎖活性基を含有する活性メチレン化合物は式iに示す化合物iであり、
前記化合物iは5-ホルミルシトシン又はその1-置換誘導体と一ステップで反応することで、式Iに示す化合物Iを生成し:
方法。 - 請求項2に記載の方法であって、
化合物iはメチルアセトアセテート、エチルアセトアセテート、ジエチルマロネート又はエチル6-アジド-3-オキシヘキサノエートである、
方法。 - 請求項1に記載の方法であって、
前記側鎖活性基を有する活性メチレン化合物は式iiで表される化合物iiであり、
前記化合物iiは一ステップで5-ホルミルシトシン又はその1-置換誘導体と反応して式IIで示される化合物IIを生成し:
方法。 - 請求項4に記載の方法であって、
前記化合物iiはマロノニトリルである、
方法。 - 請求項1に記載の方法であって、
前記側鎖活性基を含有する活性メチレン化合物は式iiiで表される化合物iiiであり、
前記化合物iiiは5-ホルミルシトシン又はその1-置換誘導体と一ステップで反応することで、式IIIで表される化合物IIIを生成する:
方法。 - 請求項6に記載の方法であって、
前記化合物iiiは1,3-インダンジオン又は5-(2-アジドエチル)-1,3-インダンジオンでる、
方法。 - 請求項6に記載の方法であって、
前記側鎖活性基を含有する活性メチレン化合物は、式ivに示される前記化合物iiiの誘導体ivであり、
Xは前記リンカー配列を構築するための基本単位であり、また
XはC1-C5の直鎖状若しくは分枝状のヒドロカルビル、又はC1-C5の直鎖状若しくは分枝状のヒドロカルビルであって、エーテル結合-O-及び/又はイミノ基-NH-を有するものを示し;
nは、1よりも大きい、若しくは1と等しい正の整数であり;また
Yはビオチン、アジド、アルキニル若しくはアルキニル誘導体である、
方法。 - 式ivで示される化合物:
XはC1-C5の直鎖状若しくは分枝状のヒドロカルビル、又はC1-C5の直鎖状若しくは分枝状のヒドロカルビルであって、エーテル結合-O-及び/又はイミノ基-NH-を有するものを示し;
nは、1よりも大きい、若しくは1と等しい正の整数であり;また
Yはビオチン、アジド、アルキニル若しくはアルキニル誘導体である。 - 前記化合物は5-(2-アジドエチル)-1,3-インダンジオンである、
請求項9に記載の化合物。 - 請求項1−8のいずれかに記載の方法及び請求項9又は10に記載の化合物の、以下の用途における使用:
1)ゲノムにおける5-ホルミルシトシンの配列分布情報及び/又は一塩基の分解能を持つ配列情報の配列決定解析;
2)5-ホルミルシトシン又はその1-置換誘導体の含有量の測定;
3)直接又は間接に行う、5-ホルミルシトシン塩基を有するDNA又はRNA分子の濃縮;
4)ゲノムDNA試料における5-ホルミルシトシン塩基の分布情報及び/又は一塩基の分解能を持つ配列情報を検出するためのキットの調製;
5)核酸結合性タンパク質の特定する能力及び結合する能力又は核酸結合性タンパク質の酵素活性に対する影響を与える因子の検出;並びに
6)5-ホルミルシトシンを用いた分子診断。 - 式Iで表される化合物:
- 式IIで表される化合物:
- 式IIIで表される化合物:
- 請求項12−14のいずれかに記載の化合物の、以下の用途における使用:
1)核酸配列決定;
2)核酸分子における5-ホルミルシトシンの配列分布情報及び/又は一塩基の分解能を持つ配列情報の配列分析;
3)5-ホルミルシトシンの含有量の蛍光分光測定分析;
4)5-ホルミルシトシンのin vivo又はin vitro撮像技術;
5)核酸配列に対する特異的な標識;
6)5-ホルミルシトシン又はその1-置換誘導体の含有量の測定;
7)直接又は間接に行う、5-ホルミルシトシン塩基を有する分子の濃縮;
8)核酸−タンパク質相互作用及び核酸−核酸相互作用の試験;及び
9)5-ホルミルシトシンに基づく分子診断。
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