3ivk A 3.1 BS01 rna C 0 Y34 Y57 S58 S60 Q102 Y104 R105 R106 R110 Y32 Y55 S56 S58 Q100 Y102 R103 R104 R108 19965478 -7 ~ 121 SEVQLVESGGGLVQPGGSLRLSCAASGFYISYSSIHWVRQAPGKGLEWVASISPYSGSTYYADSVKGRFTISADTSKNTAYLQMNSLRAEDTAVYYCARQGYRRRSGRGFDYWGQGTLVTVSSASTKGPSVFPLAPSSKSTSGGTAALGCLVKDYFPEPVTVSWNSGALTSGVHTFPAVLQSSGLYSLSSVVTVPSSSLGTQTYICNVNHKPSNTKVDKKVEPK