>6ff7_X mol:protein length:225 U2 small nuclear ribonucleoprotein B'' MDIRPNHTIYINNMNDKIKKEELKRSLYALFSQFGHVVDIVALKTMKMRGQAFVIFKEL GSSTNALRQLQGFPFYGKPMRIQYAKTDSDIISKMRGTFADKEKKKEKKKAKTVEQTAT TTNKKPGQGTPNSANTQGNSTPNPQVPDYPPNYILFLNNLPEETNEMMLSMLFNQFPGF KEVRLVPGRHDIAFVEFENDGQAGAARDALQGFKITPSHAMKITYAKK