9bh5 AZ 2.63 BS01 rna B2 0 K39 L40 N42 R76 S78 H99 H100 K2 L3 N5 R39 S41 H62 H63 P52821 39209556 2 ~ 1754 DKLNNMVLFDQATYDKLYKEVITYKLITPSVVSERLKVRASLAKAGLKELQAKGLVKCVVHHHGQVVYTRA