4u50 D7 3.2 BS01 rna 2 0 R17 H19 K20 L21 K22 Q26 P28 S30 F32 H49 Q51 P66 T67 G68 K70 K72 R16 H18 K19 L20 K21 Q25 P27 S29 F31 H48 Q50 P65 T66 G67 K69 K71 ? 0000028,0000462,0003723,0003735,0005737,0005829,0005840,0006412,0008270,0022627,0044391,0046872,1990904 P35997 25209664 1 ~ 1798 VLVQDLLHPTAASEARKHKLKTLVQGPRSYFLDVKCPGCLNITTVFSHAQTAVTCESCSTILCTPTGGKAKLSEGTSFRRK