>sp|Q9ER10|BSSP4_MOUSE Brain-specific serine protease 4 OS=Mus musculus GN=Prss22 MMISRPPPALGGDQFSILILLVLLTSTAPISAATIRVSPDCGKPQQLNRIVGGEDSMDAQ WPWIVSILKNGSHHCAGSLLTNRWVVTAAHCFKSNMDKPSLFSVLLGAWKLGSPGPRSQK VGIAWVLPHPRYSWKEGTHADIALVRLEHSIQFSERILPICLPDSSVRLPPKTDCWIAGW GSIQDGVPLPHPQTLQKLKVPIIDSELCKSLYWRGAGQEAITEGMLCAGYLEGERDACLG DSGGPLMCQVDDHWLLTGIISWGEGCAERNRPGVYTSLLAHRSWVQRIVQGVQLRGYLAD SGDTGSS