ボロン酸によるHIV-1プロテアスのサブピコモラ抑制
Ian W Windsor1, Michael J Palte, John C Lukesh
1Department of Chemistry , Massachusetts Institute of Technology , Cambridge , Massachusetts 02139 , United States.
Journal of the American Chemical Society
|October 23, 2018
まとめ
ボロン酸は強い水素結合を形成し,新しいHIV-1プロテアース阻害剤を生成します. この新しい阻害剤は 薬剤耐性HIV変種に対してさえ 20倍以上の親和性を示しています
科学分野:
- 薬剤化学
- 構造生物学
- コンピュータ化学
背景:
- ボロン酸は,一般的に共性相互作用に使用されます.
- 非共性認識の可能性は未十分に研究されている.
- HIV-1 プロテアース阻害剤は,抗レトロウイルス治療に不可欠です.
研究 の 目的:
- ボロン酸を非共性認識剤として研究する.
- 新種のHIV-1プロテアース阻害剤を開発する
- ボロン酸を含むリガンドの結合相互作用を調査する.
主な方法:
- ダルナビルのフェニルボロン酸アナログの設計と合成.
- プロテアゼ結合測定を用いた親和度測定
- X線結晶学で結合モードを決定する.
- 水素結合特性を分析するための密度関数理論 (DFT) 計算.
主要な成果:
- ダルナビルのアニリンをフェニルボロン酸に置き換えると,プロテアゼの親和度は20倍に増加した.
- ボロン酸分子は,Asp30/Asn30を含む3つの主要な水素結合を形成した.
- 薬剤耐性D30NHIV-1プロテアゼ変異体に対する高親和性は維持された.
- DFTによって確認された,短時間共性BOH·OC水素結合が観察された.
結論:
- ボロン酸は,薬剤設計における非共性認識の有効な部分である.
- この研究は,ボロン酸グループを持つ強力なHIV-1プロテアース阻害剤を提示しています.
- ボロン酸は,高い親和性を持つ小分子リガンドを開発するための多用途のプラットフォームを提供します.
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