Biologically active amphiphilic peptide compositions and...

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C - Chemistry, Metallurgy

07

K

C07K 14/46 (2006.01) A61K 38/17 (2006.01) C07K 7/06 (2006.01) C07K 7/08 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2118939

2118939 9305802 PCTABS00021 Biologically active amphiphilic peptides including one of the following basic structures: I) R1-R2-R2-R1-R2-R2-R1-R1-R2-R1-R1; II) R2-R1-R2-R2-R1-R1-R2-R2-R1-R2-R2; III) R1-R2-R2-R1-R1-R2-R2-R1-R2-R2-R1-R1-R2-R3; IV) R1-R2-R1-R1-R2-R2-R1-R1-R2-R2-R4; V) R1-R1-R2-R2-R1-R2-R2-R1-R1-R2-R2-R3; or VI) R1-R1-R3-R2-R1-R1-R1-R1-R1-R1-R2-R1-R1-R2-R2-R1-R1-R2-R2-R1. R1 is a hydrophobic amino acid and R2 is a basic hydrophilic or neutral hydrophilic amino acid, R3 is a neutral hydrophilic amino acid, and R4 is a neutral hydrophilic amino acid or proline. There is also provided a biologically active amphiphilic peptide having a structural formula selected from the group consisting of: (a) R1-R2-R2-R1-R2-R2-R1; (b) R1-R1-R2-R2-R1-R2-R2-R1; (c) R2-R1-R1-R2-R2-R1-R2-R2-R1; (d) R2-R2-R1-R1-R2-R2-R1-R2-R2-R1; and (e) R1-R2-R2-R1-R1-R2-R2-R1-R2-R2-R1, wherein R1 and R2 are hereinabove described. Such peptides may be employed as pharmaceuticals.

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