METHOD FOR SCREENING PROTEIN-PROTEIN INTERACTION INHIBITOR USING NANOPORE

The present invention relates to a method for screening a protein-protein interaction inhibitor using a nanopore, the method comprising the steps of (a) forming a protein conjugate of a first protein and a second protein, (b) measuring the intensity of an electrical signal generated while the protei...

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Main Authors CHAE, Hong Sik, HA, Ji Hyang, KIM, Ki Bum, KWAK, Dong Kyu, LEE, Mi Kyung, CHI, Seung Wook
Format Patent
LanguageEnglish
French
Korean
Published 03.08.2017
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Summary:The present invention relates to a method for screening a protein-protein interaction inhibitor using a nanopore, the method comprising the steps of (a) forming a protein conjugate of a first protein and a second protein, (b) measuring the intensity of an electrical signal generated while the protein conjugate passes through the nanopore, (c) treating the protein conjugate with a protein-protein interaction inhibitor candidate, and measuring the intensity of the electrical signal generated while the protein conjugate passes through the nanopore, and (d) comparing the intensities of the electrical signals measured in steps (b) and (c) to, if the intensity of the signal increases or decreases, determine being a protein-protein interaction inhibitor. The screening method of the present invention enables a large-scale screening of a protein binding inhibitor even with a picomole of a sample without using a label. La présente invention concerne un procédé de criblage d'un inhibiteur d'interaction protéine-protéine utilisant un nanopore, le procédé comprenant les étapes de (a) formation d'un conjugué de protéine d'une première protéine et d'une deuxième protéine, (b) mesure de l'intensité d'un signal électrique généré pendant que le conjugué de protéine traverse le nanopore, (c) traitement du conjugué de protéine avec un inhibiteur d'interaction protéine-protéine candidat, et mesure de l'intensité du signal électrique généré pendant que le conjugué de protéine traverse le nanopore, et (d) comparaison des intensités des signaux électriques mesurés dans les étapes (b) et (c) pour, si l'intensité du signal augmente ou diminue, déterminer si celui-ci est un inhibiteur d'interaction protéine-protéine. Le procédé de criblage de la présente invention permet un criblage à grande échelle d'un inhibiteur de liaison de protéine, même avec une picomole d'un échantillon sans utiliser un marqueur. 본 발명은 나노포어를 이용한 단백질-단백질 상호작용 저해제 스크리닝 방법으로서, (a) 제1단백질 및 제2단백질이 결합한 단백질 결합체를 형성시키는 단계, (b) 상기 단백질 결합체가 나노포어를 통과하면서 발생하는 전기적 신호의 세기를 측정하는 단계, (c) 상기 단백질 결합체에 단백질-단백질 상호작용 저해제 후보 물질을 처리하고, 상기 단백질 결합체가 나노포어를 통과하면서 발생하는 전기적 신호의 세기를 측정하는 단계, 및 (d) 상기 (b) 및 (c) 단계에서 측정된 전기적 신호의 세기를 비교하여 신호의 세기가 증가 또는 감소하는 경우, 단백질-단백질 상호작용 저해제로 판단하는 단계를 포함하는, 단백질-단백질 상호작용 저해제 스크리닝 방법에 관한 것이다. 본 발명의 스크리닝 방법은 표지를 사용하지 않고, 극미량(picomole)의 시료로도 단백질 결합 저해제를 대용량 스크리닝을 수행할 수 있다.
Bibliography:Application Number: WO2016KR01113