4v5l B2 3.1 BS01 rna BA 0 K2 L3 R7 R14 Q46 N47 H48 R51 K54 R55 A58 R59 L61 T62 N65 R69 K1 L2 R6 R13 Q45 N46 H47 R50 K53 R54 A57 R58 L60 T61 N64 R68 ? 0003735,0005840,0006412,0022625,1990904 Q5SHP6 21051640 6 ~ 2897 KLSEVRKQLEEARKLSPVELEKLVREKKRELMELRFQASIGQLSQNHKIRDLKRQIARLLTVLNEKRRQNA