>2f4iA (A:) observed residues (from ATOM records)
fdpkryarelwfklqdmmneglgydavevlntldenpelahqkfakvvgvsnyryyiiqg
vgeiveikddgilvkvrenrkvpdlflsnhifgngivnatgiakmedfdriidfnltate
lnkivkeevvnsflkqlskgagsvgslvrfiavftllkdeeikypieaiplyleiq