7r7c b 3.71 BS01 rna 1 0 K49 F123 K126 K129 R130 G134 R135 T138 K141 K12 F35 K38 K41 R42 G46 R47 T50 K53 ? Q02892 36482249 869 ~ 2977 KITRIRAFYMRKVKSLVEQVARDYVRLLKFGQSLFQCKQLKRAALGRMATIVKK