4j5v A 2.15 BS01 rna B 0 P15 W17 W20 K38 Y51 Q85 I86 G87 S102 G104 P12 W14 W17 K33 Y46 Q80 I81 G82 S97 G99 ? 0044423 P69517 201 ~ 219 MTSPFKLPDESPSWTEWRLHNDETNQDNPLGFKESWGFGKVVFKRYLRYDRTEASLHRVLGSWTGDSVNYAASRFFGFDQIGCTYSIRFRGVSITVSGGSRTLQHLCEMAIRSKQELLQLAP