>sp|P02289|H2BE_STRPU Histone H2B, embryonic OS=Strongylocentrotus purpuratus OX=7668 PE=1 SV=2
MAPTAQVAKKGSKKAVKGTKTAXGGKKRNRKRKESYGIYIYKVLKQVHPDTGISSRAMVI
MNSFVNDIFERIAGESSRLAQYNKKSTISSREIQTAVRLILPGELAKHAVSEGTKAVTKY
TTSK