>tr|A0A173DW71|A0A173DW71_CASFI Histone H4 OS=Castor fiber GN=H4 MSGRGKGGKGLGKGGAKRHRKVLRDNIQGITKPAIRRLARRGGVKRISGLIYEETRGVLK VFLENVIRDAVTYTEHAKRKTVTAMDVVYALKRQGRTLYGFGG