Intracellular antibodies

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 16/32 (2006.01) C07K 16/00 (2006.01) C12N 15/13 (2006.01) C12N 15/85 (2006.01) G01N 33/53 (2006.01)

Patent

CA 2506124

The invention relates to intracellular single domain immunoglobulins, and to a method for determining the ability of a immunoglobulin single domain to bind to a target in an intracellular environment, comprising the steps of: a) providing a first molecule and a second molecule, wherein stable interaction of the first and second molecules leads to the generation of a signal; b) providing a single intracellular immunoglobulin domain which is associated with the first molecule, said single immunoglobulin domain being free of complementary immunoglobulin domains; c) providing an intracellular target which is associated with the second molecule, such that association of the immunoglobulin domain and the target leads to stable interaction of the first and second molecules and generation of the signal; and d) assessing the intracellular interaction between the immunoglobulin domain and the target by monitoring the signal.

L'invention concerne des immunoglobulines intracellulaires à domaine unique, et un procédé permettant de déterminer la capacité d'un domaine unique d'immunoglobuline à se lier à une cible dans un environnement intracellulaire. Ce procédé comprend les étapes consistant: a) à utiliser une première et une deuxième molécule, une interaction stable de celles-ci entraînant la production d'un signal; b) à utiliser un domaine unique d'immunoglobuline intracellulaire qui est associé à la première molécule, ce dernier étant dépourvu de domaines complémentaires d'immunoglobuline; c) à utiliser une cible intracellulaire qui est associée à la deuxième molécule, de façon que l'association du domaine d'immunoglobuline et de la cible entraîne une interaction stable de la première et de la deuxième molécule et la production du signal; et d) à évaluer l'interaction intracellulaire entre le domaine d'immunoglobuline et la cible par surveillance du signal.

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