Conotoxin peptides

Details Conotoxin peptides Conotoxin peptides

1993-10-19

1996-05-07

Wax, Robert A.

Chemistry: natural resins or derivatives; peptides or proteins;

Peptides of 3 to 100 amino acid residues

25 or more amino acid residues in defined sequence

530325, 530326, 530327, C07K 700, C07K 14435, A61K 3804

Patent

active

055147747

ABSTRACT:
The invention is directed to A-lineage conotoxin peptides, which are conotoxin peptides that have strong homology in the signal sequence and the 3'-untranslated region of the genes coding for these peptides to the sequences in the .alpha.-conotoxin peptides. The A-lineage conotoxin peptides include the .alpha.-conotoxin peptides, the .alpha.-conotoxin-like peptides and the .kappa.-conotoxin peptides, described further below. The .alpha.-conotoxin-peptides generally share a "core" sequence motif. This core sequence is termed the .alpha.3/5 core and is represented as Cys-Cys-Xaa-Xaa-Xaa-Cys-Xaa-Xaa-Xaa-Xaa-Xaa-Cys (SEQ ID NO:1). The .alpha.-conotoxin-like peptides generally share a core sequence termed the .alpha.4/7 core and is represented as Cys-Cys-Xaa-Xaa-Xaa-Xaa-Cys-Xaa-Xaa-Xaa-Xaa-Xaa-Xaa-Xaa-Cys (SEQ ID NO:2). The .kappa.-conotoxin peptides generally have a core sequence termed the .kappa.7/2/1/3 core and is represented as Cys-Cys-Xaa-Xaa-Xaa-Xaa-Xaa-Xaa-Xaa-Cys-Xaa-Xaa-Cys-Xaa-Cys-Xaa-Xaa-Xaa-Cy s (SEQ ID NO:3).

REFERENCES:
patent: 5270170 (1993-12-01), Schatz et al.
Olivera et al. 1990. Science 249:257-263.
Olivera et al. 1991. J. Biol. Chem 266(33):22067-22070.
Ramilo et al. 1992. Biochemists, 31:9919-9926.

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