>1fs2A (A:) observed residues (from ATOM records)
pgvswdslpdelllgifsclclpellkvsgvckrwyrlasdeslwqtldefrvqhmdlsn
svievstlhgilsqcsklqnlsleglrlsdpivntlaknsnlvrlnlsgcsgfsefalqt
llsscsrldelnlswcfdftekhvqvavahvsetitqlnlsgyrknlqksdlstlvrrcp
nlvhldlsdsvmlkndcfqeffqlnylqhlslsrcydiipetllelgeiptlktlqvfgi
vpdgtlqllkealphlqin