1xnr F 3.1 BS01 rna A 0 R2 Y4 Y50 K54 N73 R87 V90 V91 K92 R2 Y4 Y50 K54 N73 R87 V90 V91 K92 ? 0003735,0005737,0005840,0006412,0019843,0070181,1990904 Q5SLP8 15558050 5 ~ 1544 MRRYEVNIVLNPNLDQSQLALEKEIIQRALENYGARVEKVEELGLRRLAYPIAKDPQGYFLWYQVEMPEDRVNDLARELRIRDNVRRVMVVKSQEPFLANA