REF Nuclease for Site-Specific REF-Mediated DNA Cleavage
First Claim
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1. A purified Ref polypeptide comprising an amino acid sequence at least 95% identical to any of SEQ ID NOs:
- 4 and 5, wherein(i) the Ref polypeptide does not comprise the entire amino acid sequence of a naturally occurring full length Ref protein, SEQ ID NO;
1, or SEQ ID NO;
2;
in that the Ref polypeptide does not include at least the first ten amino acids of the N-terminal segment of the entire amino acid sequence, and(ii) the purified Ref polypeptide exhibits an increased nuclease site-specific targeting activity relative to nuclease site-specific targeting activity of a naturally occurring full length wildtype Ref protein or full length Ref protein comprising the amino acid of any of SEQ ID NOs;
1-2.
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Abstract
Purified Ref polypeptides with increased nuclease site-specific targeting activity, recombinant nucleic acids and cells for expression of such Ref polypeptides, and methods for using the Ref polypeptides in combination with RecA protein and variants thereof to effect targeted nuclease cleavage of a DNA duplex are disclosed.
1 Citation
20 Claims
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1. A purified Ref polypeptide comprising an amino acid sequence at least 95% identical to any of SEQ ID NOs:
- 4 and 5, wherein
(i) the Ref polypeptide does not comprise the entire amino acid sequence of a naturally occurring full length Ref protein, SEQ ID NO;
1, or SEQ ID NO;
2;
in that the Ref polypeptide does not include at least the first ten amino acids of the N-terminal segment of the entire amino acid sequence, and(ii) the purified Ref polypeptide exhibits an increased nuclease site-specific targeting activity relative to nuclease site-specific targeting activity of a naturally occurring full length wildtype Ref protein or full length Ref protein comprising the amino acid of any of SEQ ID NOs;
1-2. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
- 4 and 5, wherein
Specification