>1sq3H (H:) observed residues (from ATOM records)
sisekmvealnrqinaeiysaylylsmasyfdsiglkgfsnwmrvqwqeelmhamkmfdf
vserggrvklyaveeppsewdsplaafehvyehevnvtkrihelvemamqekdfatynfl
qwyvaeqveeeasaldiveklrligedkrallfldkelslrq