2d1x D 1.9 BS01 peptide Q 0 Y12 G39 W40 N55 Y56 Y10 G37 W38 N53 Y54 ? Q14247 16636290 3 ~ 11 DLGITAVALYDYQAAGDDEISFDPDDIITNIEMIDDGWWRGVCKGRYGLFPANYVELRQ