4v5r B5 3.1 BS01 rna BA 0 A2 K3 H4 P5 V6 P7 K8 K9 K10 T11 S12 K13 A14 R15 R16 A18 R19 R20 S21 H22 H23 T29 V31 P42 H43 Y51 Y52 A1 K2 H3 P4 V5 P6 K7 K8 K9 T10 S11 K12 A13 R14 R15 A17 R18 R19 S20 H21 H22 T28 V30 P41 H42 Y50 Y51 ? 0003735,0005840,0006412,0015934,1990904 P80339 21378964 6 ~ 2897 AKHPVPKKKTSKARRDARRSHHALTPPTLVPCPECKAMKPPHTVCPECGYYAGRKVLEV