>2bk0B (B:) observed residues (from ATOM records)
gvqthvleltssvsaekifqgfvidvdtvlpkaapgayksveikgdggpgtlkiitlpdg
gpittmtlridgvnkealtfdysvidgdillgfiesienhvvlvptadggsickttaifh
tkgdavvpeenikyaneqntalfkaleaylian