>1x3wA (A:) observed residues (from ATOM records)
nnidfdsiakmllikykdfilskfkkaapvenirfqnlvhtnqfaqgvlgqsqhlctvyd
npswhsivletldldliyknvdkefakdghaegeniytdylvkellryfkqdffkwcnkp
dcnhcgqntsenmtplgsqgpngeeskfncgtveiykcnrcgnitrfpryndpiklletr
kgrcgewcnlftlilksfgldvryvwnredhvwceyfsnflnrwvhvdsceqsfdqpyiy
sinwnkkmsyciafgkdgvvdvskryilqnelprdqikeedlkflcqfitkrlryslndd
eiyqlacrdeqeqielirgk