Nucleic acid encoding poly-zinc finger proteins with improved linkers
First Claim
Patent Images
1. A polynucleotide encoding a chimeric zinc finger protein that binds to adjacent target sites, the chimeric zinc finger protein comprising:
- (i) a first and a second DNA-binding domain polypeptide of the chimeric zinc finger protein, wherein at least one of the domains comprises an engineered zinc finger polypeptide, and wherein the first domain binds to a first target site and the second domain binds to a second target site, which target sites are adjacent; and
(ii) a flexible linker that is six or more amino acids in length;
wherein the first and second domains are fused with the flexible linker.
0 Assignments
0 Petitions
Accused Products
Abstract
Polynucleotides encoding chimeric proteins, and methods for their production and use are disclosed. The chimeric proteins comprise a flexible linker between two zinc finger DNA-binding domains, wherein the linker contains eight or more amino acids between the second conserved histidine residue of the carboxy-terminal zinc finger of the first domain and the first conserved cysteine residue of the amino-terminal zinc finger of the second domain.
-
Citations
30 Claims
-
1. A polynucleotide encoding a chimeric zinc finger protein that binds to adjacent target sites, the chimeric zinc finger protein comprising:
-
(i) a first and a second DNA-binding domain polypeptide of the chimeric zinc finger protein, wherein at least one of the domains comprises an engineered zinc finger polypeptide, and wherein the first domain binds to a first target site and the second domain binds to a second target site, which target sites are adjacent; and (ii) a flexible linker that is six or more amino acids in length; wherein the first and second domains are fused with the flexible linker. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
-
-
17. A polynucleotide encoding a DNA-binding protein that binds to adjacent first and second target sites, wherein the adjacent target sites are separated by one nucleotide, the DNA-binding protein comprising first and second DNA-binding domains, wherein
the first and second DNA-binding domains are zinc finger polypeptides (ZFPs) which do not occur together in the same arrangement in nature, the first ZFP binds to the first target site and the second ZFP binds to the second target site, each zinc finger polypeptide comprises a plurality of zinc fingers, each zinc finger comprises two conserved cysteine residues that are amino-terminal to two conserved histidine residues; - and
the first and second ZFPs are joined by an amino acid sequence of 9, 10 or 11 amino acids between the second conserved histidine residue of the carboxy-terminal zinc finger of the first ZFP and the first conserved cysteine residue of the amino-terminal zinc finger of the second ZFP. - View Dependent Claims (18)
- and
-
19. A polynucleotide encoding a DNA-binding protein that binds to adjacent first and second target sites, wherein the adjacent target sites are separated by two nucleotides, the DNA-binding protein comprising first and second DNA-binding domains, wherein
the first and second DNA-binding domains are zinc finger polypeptides (ZFPs) which do not occur together in the same arrangement in nature, the first ZFP binds to the first target site and the second ZFP binds to the second target site, each zinc finger polypeptide comprises a plurality of zinc fingers, each zinc finger comprises two conserved cysteine residues that are amino-terminal to two conserved histidine residues; - and
the first and second ZFPs are joined by an amino acid sequence of 12, 13 or 14 amino acids between the second conserved histidine residue of the carboxy-terminal zinc finger of the first ZFP and the first conserved cysteine-residue of the amino-terminal zinc finger of the second ZFP.
- and
-
20. A polynucleotide encoding a DNA-binding protein that binds to adjacent first and second target sites, the DNA-binding protein comprising
a regulatory domain; - and
first and second DNA-binding domains, wherein the first and second DNA-binding domains are zinc finger polypeptides (ZFPs) which do not occur together in the same arrangement in nature, the first ZFP binds to the first target site and the second ZFP binds to the second target site, each zinc finger polypeptide comprises a plurality of zinc fingers, each zinc finger comprises two conserved cysteine residues that are amino-terminal to two conserved histidine residues; and the first and second ZFPs are joined by an amino acid sequence comprising eight or more amino acids between the second conserved histidine residue of the carboxy-terminal zinc finger of the first ZFP and the first conserved cysteine residue of the amino-terminal zinc finger of the second ZFP. - View Dependent Claims (21, 22, 23)
- and
-
24. A polynucleotide encoding a DNA-binding protein that binds to first and second adjacent target sites, wherein the adjacent target sites are separated by one nucleotide, the DNA-binding protein comprising:
-
first and second zinc finger polypeptides (ZFPs), wherein each zinc finger polypeptide comprises a plurality of zinc fingers and each zinc finger comprises two conserved cysteine residues that are amino-terminal to two conserved histidine residues, and wherein the first ZFP binds to the first target site and the second ZFP binds to the second target site; wherein the first and second ZFPs are joined by a sequence of 9, 10 or 11 amino acids between the second conserved histidine residue of the carboxy-terminal zinc finger of the first ZFP and the first conserved cysteine residue of the amino-terminal zinc finger of the second ZFP; and further wherein the plurality of zinc fingers within each ZFP are joined by a sequence of seven amino acids between the second conserved histidine residue of a zinc finger and the first conserved cysteine residue of an adjacent zinc finger. - View Dependent Claims (25)
-
-
26. A polynucleotide-encoding a DNA-binding protein that binds to first and second adjacent target sites, wherein the adjacent target sites are separated by two nucleotides, the DNA-binding protein comprising:
-
first and second zinc finger polypeptides (ZFPs), wherein each zinc finger polypeptide comprises a plurality of zinc fingers and each zinc finger comprises two conserved cysteine residues that are amino-terminal to two conserved histidine residues, and wherein the first ZFP binds to the first target site and the second ZFP binds to the second target site; wherein the first and second ZFPs are joined by a sequence of 12, 13 or 14 amino acids between the second conserved histidine residue of the carboxy-terminal zinc finger of the first ZFP and the first conserved cysteine residue of the amino-terminal zinc finger of the second ZFP; and further wherein the plurality of zinc fingers within each ZFP are joined by a sequence of seven amino acids between the second conserved histidine residue of a zinc finger and the first conserved cysteine residue of an adjacent zinc finger.
-
-
27. A polynucleotide encoding a DNA-binding protein that binds to first and second adjacent target sites, the DNA-binding protein comprising:
-
a regulatory domain polypeptide; and first and second zinc finger polypeptides (ZFPs), wherein each zinc finger polypeptide comprises a plurality of zinc fingers and each zinc finger comprises two conserved cysteine residues that are amino-terminal to two conserved histidine residues, and wherein the first ZFP binds to the first target site and the second ZFP binds to the second target site; wherein the first and second ZFPs are joined by an amino acid sequence comprising eight or more amino acids between the second conserved histidine residue of the carboxy-terminal zinc finger of the first ZFP and the first conserved cysteine residue of the amino-terminal zinc finger of the second ZFP; and further wherein the plurality of zinc fingers within each ZFP are joined by a sequence of seven amino acids between the second conserved histidine residue of a zinc finger and the first conserved cysteine residue of an adjacent zinc finger. - View Dependent Claims (28, 29, 30)
-
Specification