JP6768270B2 - ビオチン直接結合型タンパク質活性調節物質 - Google Patents
ビオチン直接結合型タンパク質活性調節物質 Download PDFInfo
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- JP6768270B2 JP6768270B2 JP2015153233A JP2015153233A JP6768270B2 JP 6768270 B2 JP6768270 B2 JP 6768270B2 JP 2015153233 A JP2015153233 A JP 2015153233A JP 2015153233 A JP2015153233 A JP 2015153233A JP 6768270 B2 JP6768270 B2 JP 6768270B2
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- protein
- biotin
- compound
- protease
- complex
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- 239000011616 biotin Substances 0.000 title description 66
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- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
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Description
項2. 前記化合物が一般式(1):
で表わされる化合物である、項1に記載の化合物、又はその塩、水和物若しくは溶媒和物.
項3. 前記タンパク質活性調節物質がプロテアーゼ阻害剤である、項1又は2に記載の化合物、又はその塩、水和物若しくは溶媒和物.
項4. 前記タンパク質活性調節物質がタンパク質ではない、項1〜3のいずれかに記載の化合物、又はその塩、水和物若しくは溶媒和物.
項5. 前記タンパク質活性調節物質の分子量が1000以下である、項1〜4のいずれかに記載の化合物、又はその塩、水和物若しくは溶媒和物.
項6. 前記タンパク質活性調節物質の活性調節対象タンパク質の分子量が10kDa以上である、項1〜5のいずれかに記載の化合物、又はその塩、水和物若しくは溶媒和物.
項7. 項1〜6のいずれかに記載の化合物、又はその塩、水和物若しくは溶媒和物を含有する、タンパク質と該タンパク質の活性調節物質との複合体からの該タンパク質分離剤.
項8. タンパク質と該タンパク質の活性調節物質との複合体から、該タンパク質を分離する方法であって、下記工程(a)及び(b)を含む方法:
(a)タンパク質と該タンパク質の活性調節物質との複合体と、項1〜6のいずれかに記載の化合物、又はその塩、水和物若しくは溶媒和物とを接触させる工程、及び
(b)工程(a)により得られる、項1〜6のいずれかに記載の化合物、又はその塩、水和物若しくは溶媒和物と、タンパク質との複合体を回収する工程.
項9. 項1〜6のいずれかに記載の化合物、又はその塩、水和物若しくは溶媒和物と、タンパク質との複合体.
項10. 項9に記載の複合体から、タンパク質を単体で分離する方法であって、下記工程(c)及び(d)を含む方法:
(c)項9に記載の複合体と、アビジン物質とを接触させる工程、及び
(d)工程(c)により得られるタンパク質を回収する工程.
項11. 項9に記載の複合体から、タンパク質を単体で分離し、得られたタンパク質の活性を測定する方法であって、下記工程(c)〜(e)を含む方法:
(c)項9に記載の複合体と、アビジン物質とを接触させる工程、
(d)工程(c)により得られるタンパク質を回収する工程、及び
(e)工程(d)により回収されたタンパク質の活性を測定する工程.
ビオチン、及び該ビオチンと直接共有結合しているタンパク質活性調節物質を含む化合物(本明細書において、「本発明の化合物」又は「ビオチン直接結合型タンパク質活性調節物質」と示すこともある。)、又はその塩、水和物若しくは溶媒和物について説明する。
で表わされる化合物が挙げられる。
本発明は、本発明の化合物、又はその塩、水和物若しくは溶媒和物を含有する、タンパク質と該タンパク質の活性調節物質との複合体からの該タンパク質分離剤(本明細書において「本発明の分離剤」と示すこともある。)に関する。以下、これについて説明する。
本発明は、本発明の化合物、又はその塩、水和物若しくは溶媒和物を用いて、タンパク質と該タンパク質の活性調節物質との複合体から該タンパク質を分離する方法(本明細書において「本発明の分離方法」と示すこともある)に関する。さらには、本発明は、本発明の分離方法によって得られる複合体(本発明の化合物、又はその塩、水和物若しくは溶媒和物とタンパク質との複合体)(本明細書において、「本発明の複合体」と示すこともある。)にも関する。以下、これらについて説明する。
(a)タンパク質と該タンパク質の活性調節物質との複合体と、本発明の化合物、又はその塩、水和物若しくは溶媒和物とを接触させる工程、及び
(b)工程(a)により得られる、本発明の化合物、又はその塩、水和物若しくは溶媒和物と、タンパク質との複合体を回収する工程。
本発明は、上記「3.タンパク質分離方法、及び複合体」で得られた本発明の複合体(本発明の化合物、又はその塩、水和物若しくは溶媒和物と、タンパク質との複合体)から、タンパク質を単体で分離する方法(本明細書において、「本発明の単体分離方法」と示すこともある。)に関する。以下、これについて説明する。
(c)本発明の複合体と、アビジン物質とを接触させる工程、及び
(d)工程(c)により得られるタンパク質を回収する工程。
工程(c)における接触時間は、本発明の複合体からタンパク質が単体で分離できる程度の時間が確保される限りにおいて特に限定されない。接触時間は、例えば1〜30分間、好ましくは5〜20分間程度である。
(e)工程(d)により回収されたタンパク質の活性を測定する工程
により、単体で分離したタンパク質の活性を測定することもできる。
化合物1(ビオチン直接結合型プロテアーゼ阻害剤(プロテアーゼ阻害剤=KNI-1293))を以下のスキームに従って合成した。
化合物2(ビオチンリンカー結合型プロテアーゼ阻害剤(プロテアーゼ阻害剤=KNI-1293))を以下のスキームに従って合成した。
化合物3(ビオチン直接結合型プロテアーゼ阻害剤(プロテアーゼ阻害剤=ペプスタチンA))を以下のスキームに従って合成した。
化合物4(ビオチンリンカー結合型プロテアーゼ阻害剤(プロテアーゼ阻害剤=ペプスタチンA))を以下のスキームに従って合成した。
ビオチン直接結合型プロテアーゼ阻害剤(化合物1)と、該阻害剤の阻害対象であるHIVプロテアーゼとを共存させた状態での該プロテアーゼの活性を、ストレプトアビジン濃度を変えて、測定した。ストレプトアビジン非存在下では化合物1とHIVプロテアーゼとが複合体を形成し、該プロテアーゼの活性は抑制される。ストレプトアビジンの添加により該複合体から該プロテアーゼが単体で分離されるのであれば、活性が回復するはずである。具体的には、以下のように行った。
ビオチンリンカー結合型プロテアーゼ阻害剤(化合物2)が連結したビーズに、HIVプロテアーゼを結合させた。得られた複合体から、ビオチン直接結合型プロテアーゼ阻害剤(化合物1)を用いて溶出を行った。溶出液のHIVプロテアーゼ活性を、ストレプトアビジン存在下又は非存在下で測定した。化合物2とHIVプロテアーゼとの複合体から、化合物1によりHIVプロテアーゼが溶出(分離)され、さらに溶出液中の複合体(化合物1とHIVプロテアーゼとの複合体)から、ストレプトアビジンの添加によりHIVプロテアーゼが単体で分離されるのであれば、ストレプトアビジン存在下でHIVプロテアーゼ活性が見られるはずである。具体的には、以下のように行った。
Claims (3)
- 一般式(1):
で表わされる化合物、又はその塩、水和物若しくは溶媒和物を含有し、
アビジン物質の作用により酵素又は生体内受容体の活性状態を制御することに用いるための、
タンパク質活性調節剤。 - 前記タンパク質活性調節物質の活性調節対象タンパク質の分子量が10kDa以上である、請求項1に記載のタンパク質活性調節剤。
- アビジン物質の作用により酵素又は生体内受容体の活性状態を制御する方法であって、下記工程(c)を含む方法:
(c)請求項1又は2に記載のタンパク質活性調節剤と酵素又は生体内受容体との複合体と、アビジン物質とを接触させる工程。
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