>2bk0A (A:) observed residues (from ATOM records)
gvqthvleltssvsaekifqgfvidvdtvlpkaapgayksveikgdggpgtlkiitlpdg
gpittmtlridgvnkealtfdysvidgdillgfiesienhvvlvptadggsickttaifh
tkgdavvpeenikyaneqntalfkaleaylian