Engineered heterodimeric protein domains

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 16/46 (2006.01) C12N 15/62 (2006.01)

Patent

CA 2646965

The present invention provides an engineered multidomain protein including at least two nonidentical engineered domains, each of which contains a protein-protein interaction interface containing amino acid sequence segments derived from two or more existing homologous parent domains, thereby conferring on the engineered domains assembly specificities distinct from assembly specificities of the parent domains. In particular, the engineered domains form heterodimers with one another preferentially over forming homodimers. Methods of designing and using the engineered proteins are also included.

La présente invention concerne une protéine multidomaine d'ingénierie comprenant au moins deux domaines d'ingénierie non identiques, chacun d'entre eux contenant une interface d'interaction protéine-protéine contenant des segments de séquence d'acides aminés dérivés de deux domaines parents homologues existants ou plus, conférant ainsi à l'assemblage des domaines d'ingénierie des spécificités distinctes des spécificités d'assemblage des domaines parents. Les domaines d'ingénierie forment notamment des hétérodimères les uns avec les autres, de manière préférentielle par rapport à la formation d'homodimères. L'invention concerne également des procédés de conception et d'utilisation des protéines d'ingénierie.

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