>1exzB (B:) observed residues (from ATOM records)
gicrnrvtnnvkdvtklvanlpkdymitlkyvpgmdvlpshcwisemvvqlsdsltdlld
kfsniseglsnysiidklvnivddlvecvkensskdlkksfkspeprlftpeeffrifnr
sidafkdfvvasetsdcvvs