Method for studying protein interactions in vivo

C - Chemistry – Metallurgy – 12 – Q

Patent

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Details

C12Q 1/66 (2006.01) C07H 21/04 (2006.01) C07K 14/435 (2006.01) C12N 15/10 (2006.01) C12P 21/06 (2006.01) C12Q 1/00 (2006.01) G01N 21/00 (2006.01) G01N 21/75 (2006.01) G01N 21/76 (2006.01) G01N 31/00 (2006.01) G01N 33/53 (2006.01) G01N 33/531 (2006.01) G01N 33/533 (2006.01) G01N 33/567 (2006.01) G01N 33/573 (2006.01) G01N 33/58 (2006.01) G01N 33/60 (2006.01)

Patent

CA 2341314

A method for determining whether a first protein interacts with a second protein within a living cell. The method comprises providing the first protein complexed to a donor luciferase and the second protein complexed to an acceptor flurophore within the cell. The complexed first protein and the complexed second protein are allowed to come into proximity to each other within the cell. Then, any fluorescence from the acceptor fluorophore resulting from luminescence resonance energy transfer from the donor luciferase is detected, where fluorescence from the acceptor fluorophore indicates that the first protein has interacted with the second protein.

L'invention concerne un procédé servant à déterminer si une première protéine interagit avec une deuxième protéine dans une cellule vivante. Le procédé comporte l'étape consistant à faire en sorte que la première protéine forme un complexe avec une luciférase donneur, et que la deuxième protéine forme un complexe avec un fluorophore accepteur dans la cellule. La première protéine formant un complexe et la deuxième protéine formant un complexe sont amenées à proximité l'une de l'autre dans la cellule. Ensuite, on détecte toute fluorescence provenant du fluorophore accepteur, qui résulte d'un transfert d'énergie par résonance de luminescence provenant de la luciférase donneur, la fluorescence provenant du fluorophore accepteur indiquant que la première protéine a interagi avec la deuxième protéine.

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