>sp|P02286|H2B_ASTRU Histone H2B, gonadal OS=Asterias rubens MPPKPSGKGQKKAGKAKGAPRTDKKRRRKRKESYGIYIYKVMKQVHPDTGISSRAMSIMN SFVNDIFERIAAEASRLAHYNKKSTITSREVQTAVRLLLPGELAKHAVSEGTKAVTKYTT SK