>gnl|BMRB|19725.1 cytoplasmic_Ig-alpha_polypeptide_Y_to_E_double_mutant
SGGVAQLRERVKTLRAQNYELESEVQRLREQVAQLSGGRKRWQNEKLGLDAGDEYEDENLEEGLNLDDCSMEEDISRGLQGTYQDVGSLNIGDVQLEKP
>gnl|BMRB|19725.2 cytoplasmic_Ig-beta_polypeptide
SGGVDELQAEVDQLQDENYALKTKVAQLRKKVEKLSGGDKDDSKAGMEEDHTYEGLDIDQTATYEDIVTLRTGEVKWSVGEHPGQE