>1nf6F (F:) observed residues (from ATOM records)
agnredrkakvievlnkaramelhaihqymnqhyslddmdygelaanmkliaidemrhae
nfaerikelggepttqkegkvvtgqavpviyesdadqedatieaysqflkvckeqgdivt
arlferiieeeqahltyyenigshiknlgdtylakiagtpsstgtaskgfv