Sequence alignment between 1kx5(B) and UniProt seq P62799 (H4_XENLA):

P62799 (H4_XENLA): Histone H4 from Xenopus laevis
                 10        20        30        40        50        60        70        80        90       100   
         ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+---
UniProt: MSGRGKGGKGLGKGGAKRHRKVLRDNIQGITKPAIRRLARRGGVKRISGLIYEETRGVLKVFLENVIRDAVTYTEHAKRKTVTAMDVVYALKRQGRTLYGFGG
PDB seq: -SGRGKGGKGLGKGGAKRHRKVLRDNIQGITKPAIRRLARRGGVKRISGLIYEETRGVLKVFLENVIRDAVTYTEHAKRKTVTAMDVVYALKRQGRTLYGFGG
          ---------+---------+---------+---------+---------+---------+---------+---------+---------+---------+--
                  10        20        30        40        50        60        70        80        90       100