6gqb W 3.9 BS01 rna 1 0 G16 R17 S34 K35 S38 Q42 R43 K44 R48 I49 A50 W51 R56 K61 G16 R17 S34 K35 S38 Q42 R43 K44 R48 I49 A50 W51 R56 K61 ? P04449 29886014 3 ~ 3396 MKVEIDSFSGAKIYPGRGTLFVRGDSKIFRFQNSKSASLFKQRKNPRRIAWTVLFRKHHKKGIT