>4wsuF (F:) observed residues (from ATOM records) gifgaiagfieggwtgmidgwygyhhensqgsgyaadrestqkaidgitnkvnsiinkmn tqfeavdhefsnlerrignlnkrmedgfldvwtynaellvllenertldlhdanvknlye kvksqlrdnandlgngcfefwhkcdnecmesvkngtydypkyqkesklnr