<;P>;PROBLEM TO BE SOLVED: To provide a partial peptide of TRPV2 which can suppress the expression of the TRPV2, and to provide a non-human animal which can express the partial peptide of the TRPV2. <;P>;SOLUTION: The partial peptide of the TRPV2 is the peptide selected from sequences containing the N-terminal region of the amino acid sequence constituting the TRPV2 protein, and suppressing the expression of the TRPV2 protein in a cell membrane. The transgenic nonhuman animal expresses the peptide. <;P>;COPYRIGHT: (C)2011,JPO&INPIT