< 110 > CALPIS Co . , Ltd . < 120 > Prophylactic agent for heart failure < 130 > Y 1 P 0164 < 150 > JP 2007 - 081638 < 151 > 2007 - 03 - 27 < 160 > 1 < 170 > KopatentIn 1 . 71 < 210 > 1 < 211 > 4 < 212 > PRT < 213 > Artificial < 220 > < 223 > recognition sequence for peptidase < 220 > < 221 > misc _ feature < 222 > ( 1 ) . .( 1 ) < 223 > Xaa can be any naturally occurring amino acid < 220 > < 221 > misc _ feature < 222 > ( 4 ) . .( 4 ) < 223 > Xaa can be any naturally occurring amino acid < 400 > 1 Xaa Pro Pro Xaa 1