6n3a I 3.3 BS01 peptide P 0 Q331 S332 G335 Q21 S22 G25 ? Q13148 31235914 338 ~ 347 MNFGAFSINPAMMAAAQAALQSSWGMMGMLASQQNQSGPSGNNQNQGNMQ 6n3a I 3.3 BS02 peptide S 0 S332 M336 S22 M26 ? Q13148 31235914 338 ~ 347 MNFGAFSINPAMMAAAQAALQSSWGMMGMLASQQNQSGPSGNNQNQGNMQ