>4gsxA (A:) observed residues (from ATOM records)
rcvgignrdfveglsgatwvdvvlehgscvttmakdkptldiellktevtnpavlrklci
eakisntttdsrcptqgeatlveeqdtnfvcrrtfvdrghgngcglfgkgslitcakfkc
vtklegkivqyenlkysvivtvhtggtiatitpqaptseiqltdygaltldcsprtgldf
nemvlltmekkswlvhkqwfldlplpwtsgastsqetwnrqdllvtfktahakkqevvvl
gsqegamhtaltgateiqtsgtttifaghlkcrlkmdkltlkgmsyvmctgsfklekeva
etqhgtvlvqvkyegtdapckipfssqdekgvtqngrlitanpivtdkekpvnieaeppf
gesyivvgagekalklswfkkgssigkmfe