4v6a B6 3.1 BS01 rna BA 0 V5 R19 Y21 T23 E24 K25 K27 T30 P31 E35 R37 K38 Y39 K45 H46 V1 R15 Y17 T19 E20 K21 K23 T26 P27 E31 R33 K34 Y35 K41 H42 ? 0000049,0003735,0005737,0005840,0006412,0019843,1990904 P35871 19696344 6 ~ 2891 VRIKLLLECTECKRRNYATEKNKRNTPNKLELRKYCPWCRKHTVHREV