>1a52A (A:) observed residues (from ATOM records)
lalsltadqmvsalldaeppilyseydptrpfseasmmglltnladrelvhminwakrvp
gfvdltlhdqvhllecawleilmiglvwrsmehpgkllfapnllldrnqgkcvegmveif
dmllatssrfrmmnlqgeefvclksiillnsgvytflsstlksleekdhihrvldkitdt
lihlmakagltlqqqherlaqlllilshirhmsnkgmehlysmkcknvvplydllleml