>2zlvB (B:) observed residues (from ATOM records)
vqlsgeekaavlalwdkvneeevggealgrllvvypwtqrffnpkvkahgkkvlhsfgeg
vhhldnlkgtfaalselhcdklhvdpenfrllgnvlvvvlarhfgkdftpelqasyqkvv
agvanalahkyh