Patent ID: 8008262

Claim:
An isolated β-peptide, wherein the isolated β-peptide comprises: (a) the sequence (I): (β 3 Orn)-X 2 -(β 3 -Leu)-(β 3 -Glu)-X 5 -(β 3 -Trp)-(β 3 -Orn)-X 8 -(β 3 -Phe)-(β 3 -Glu) (I) wherein each X 2 , X 5 or X 8 are independently selected from the group consisting of α-Gly, β 3 -Ala, β 3 -Asp, β 3 -Ile, β 3 -Lys, β 3 -Phe, β 3 -Thr, β 3 -Trp, β 3 -Tyr and β 3 -Val, or (b) the isolated β-peptide of sequence (I) wherein one β-amino acid is replaced by another β-amino acid.