>2iszA (A:) observed residues (from ATOM records)
mnelvdttemylrtiydleeegvtplrariaerldqsgptvsqtvsrmerdgllrvagdr
hleltekgralaiavmrkhrlaerllvdviglpweevhaeacrwehvmsedverrlvkvl
nnpttspfgnpipglvelgv