Patent ID: 8299211

Claim:
An isolated peptide consisting of a sequence of 8 to 14 amino acids, wherein the sequence contains a GX 3 X 4 X 4 G-like structural motif, and wherein the sequence comprises X 1 -X 2 -X 3 -X 4 -X 5 -X 6 -X 7 -X 8 (SEQ ID NO:11); wherein X 1 is L, I, V, or F; X 2 is G, A, S, or T; X 3 is L, I, V, A, or F; X 4 is L, I, V, A, F, or T; X 4 is L, I, V, A, or F; X 6 is G, A, or S; and each X 7 and X 8 independently is L, I, V, A, or F; wherein said isolated peptide is capable of inhibiting voltage dependent calcium current in a cell.