>1fz4F (F:) observed residues (from ATOM records)
klgihsndtrdawvnkiaqlntlekaaemlkqfrmdhttpfrnsyeldndylwieaklee
kvavlkarafnevdfrhktafgedaksvldgtvakmnaakdkweaekihigfrqaykppi
mpvnyfldgerqlgtrlmelrnlnyydtpleelrkqrgvrvvhlqsph