>tr|C3U1R8|C3U1R8_MUSMC Protamine-2 OS=Mus musculus castaneus GN=Prm2 MVRYRMRSPSEGPHQGPGQDHEREEQGQGQGLSPERVEDYGRTHRGHHHHRHRRCSRKRL HRIHKRRRSCRRRRRHSCRHRRRHRRGCRRSRRRRRCRCRKCRRHHH