>sp|Q99JL1|SPEF1_MOUSE Sperm flagellar protein 1 OS=Mus musculus GN=Spef1 MESSVDEEALHQLYLWVDNIPLSRPKRNLSRDFSDGVLVAELIKFYFPKMVEMHNYVPAN SLQQKLSNWGHLNRKVLNKLNFSVPDDVMRKIAQCSPGVVELVLIPLRQRLEERQRRQKL GVGSLQELAPQDSSGYMDMGLPQKVRGEGAPALGEQLREGRPLASRPPGYNQALQGDPSF VLQIAEKEQELLASQETVQVLQMKVKRLEHLLQLKNVRIDDLSRRLQQAERKQR