ALPHA/BETA-PEPTIDE MIMICS OF Z-DOMAIN PEPTIDES
First Claim
Patent Images
1. A method of making peptidomimetic affinity reagents, the method comprising:
- generating a Z-domain scaffold peptide having affinity recognition and/or binding to a desired target compoundsubstituting at least one β
-amino acid residue into at least one helical domain of the Z-domain scaffold peptide, thereby generating an α
/β
-peptide mimic of a Z-domain scaffold peptide.
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Abstract
Described are α/β-peptide mimics of Z-domain scaffold peptides, methods of making them, and methods of using them. The α/β-peptide mimics include β-amino acid residues and, optionally, disulfide bonds to stabilize the conformation of the mimics. The compounds may be truncated as compared to conventional Z-domain scaffold peptides and are resistant to proteolytic degradation due to the presence of β-amino acid residues. The mimics can be made so as to bind selectively to a desired target.
19 Citations
23 Claims
-
1. A method of making peptidomimetic affinity reagents, the method comprising:
-
generating a Z-domain scaffold peptide having affinity recognition and/or binding to a desired target compound substituting at least one β
-amino acid residue into at least one helical domain of the Z-domain scaffold peptide, thereby generating an α
/β
-peptide mimic of a Z-domain scaffold peptide. - View Dependent Claims (2, 3, 4, 5)
-
-
6. A method of making peptidomimetic affinity reagents, the method comprising:
- generating an unnatural α
/β
-peptide mimic of a Z-domain scaffold comprising no more than 60 amino acid residues, and including at least one β
-amino acid residue, and having specific affinity recognition and/or binding to a desired target compound. - View Dependent Claims (7, 8, 9, 10, 11)
- generating an unnatural α
-
12. A method of inhibiting proteolytic degradation of a Z-domain scaffold peptide, the method comprising providing an unnatural α
- /β
-peptide mimic of the Z-domain scaffold peptide in which at least one α
-amino acid residue present in the Z-domain scaffold peptide is replaced with at least one β
-amino acid residue. - View Dependent Claims (13, 14)
- /β
-
15. An unnatural α
- /β
-peptide mimic of a Z-domain scaffold peptide, the α
/β
-peptide mimic comprising from 25 to 60 amino acid residues, having zero, one, two, or three distinct helical domains in aqueous solution, wherein at least one of the amino acid residues is a β
-amino acid residue, and salts thereof. - View Dependent Claims (16, 17, 22, 23)
- /β
-
18. An unnatural α
- /β
-peptide mimic of a Z-domain scaffold peptide, the α
/β
-peptide mimic comprising no more than 45 amino acid residues, having no more than two distinct helical domains in aqueous solution, wherein at least one of the amino acid residues is a β
-amino acid residue, and including at least one disulfide bond, and salts thereof. - View Dependent Claims (19, 20, 21)
- /β
Specification