Methods and compositions for linking binding domains in...

C - Chemistry – Metallurgy – 12 – N

Patent

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C12N 15/10 (2006.01) A61K 38/17 (2006.01) C07K 14/47 (2006.01) C12N 1/21 (2006.01) C12N 15/12 (2006.01) C12N 15/62 (2006.01) C12N 15/63 (2006.01) C12N 15/70 (2006.01) C12N 15/82 (2006.01) C12Q 1/68 (2006.01)

Patent

CA 2398155

We describe a method of producing a modified nucleic acid binding polypeptide, the method comprising the steps of: (a) providing a nucleic acid binding polypeptide comprising a plurality of nucleic acid binding modules; (b) selecting a first binding domain consisting of one or two contiguous nucleic acid binding modules; (c) selecting a second binding domain consisting of one or two contiguous nucleic acid binding modules; and (d) introducing a flexible linker sequence to link the first and second binding domains, the flexible linker sequence comprising five or more amino acid residues. Use of structured linkers, alone or in combination with flexible linkers, is also disclosed.

L'invention concerne un procédé pour produire un polypeptide à liaison acide nucléique modifié, ce procédé comprenant les étapes suivantes : (a) fournir un polypeptide à liaison acide nucléique comprenant une pluralité de modules à liaison acide nucléique; (b) sélectionner un premier domaine de liaison composé d'un ou de deux modules à liaison acide nucléique contigus; (c) sélectionner un second domaine de liaison composé d'un ou de deux modules à liaison acide nucléique contigus; et (d) introduire une séquence de liaison flexible pour lier le premier et le second domaine de liaison, cette séquence de liaison flexible comprenant cinq résidus d'acides aminés ou plus. L'invention concerne également l'utilisation de lieurs structurés, seuls ou en combinaison avec des lieurs flexibles.

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