ACRV1 GI:9955935 acrosomal vesicle protein 1 isoform j precursor 1 mnrflllmsl yllgsargts sqpnelsgsi dhqtsvqqlp gtilncytca 50 51 ymndqgkclr gegtcitqns qqcmlkkife ggklqfmvqg cenmcpsmnl 100 101 fshgtrmqii ccrnqsfcnk i