>3dt3A (A:) observed residues (from ATOM records)
lalsltadqmvsalldaeppilyseseasmmglltnladrelvhminwakrvpgfvdltl
hdqvhllecawleilmiglvwrsmehpgkllfapnllldrnqgkcvegmveifdmllats
srfrmmnlqgeefvclksiillnsgvytfsstlksleekdhihrvldkitdtlihlmaka
gltlqqqhqrlaqlllilshirhmsnkgmehlysmknvvplydlllemldahrlha