4v5y CU 4.45 BS01 rna CA 0 Y37 E38 K45 K48 Y35 E36 K43 K46 ? 0000028,0002181,0003735,0005737,0005829,0005840,0006412,0019843,0022627,1990904 P68679 17660832 5 ~ 1534 IKVRENEPFDVALRRFKRSCEKAGVLAEVRRREFYEKPTTERKRAKASAVK