>2qfnB (B:) observed residues (from ATOM records)
gfkqdiatirgdlrtyaqdiflaflnkypderryfknyvgksdqelksmakfgdhtekvf
nlmmevadratdsvplasdantlvqmkqhsslttgnfeklfvalveymrasgqsfdsqsw
drfgknlvsalssagmk