6gzx b2 4.57 BS01 rna A2 0 Y21 T23 E24 K27 R28 N29 R37 K38 C40 K45 Y13 T15 E16 K19 R20 N21 R29 K30 C32 K37 ? 0003735,0005840,0006412 P35871 30301898 1 ~ 2913 LLLECTECKRRNYATEKNKRNTPNKLELRKYCPWCRKHTVHREVK