>1ktkA (A:) observed residues (from ATOM records)
kkdisnvksdllyaytitpydykdcrvnfstthtlnidtqkyrgkdyyissemsyeasfk
rddhvdvfglfyilnshtgeyiyggitpaqnnkvnhkllgnlfisesqqnlnnkiilekd
ivtfqeidfkirkylmdnykiydatspyvsgrieigtkdgkheqidlfdspnegtrsdif
akykdnriinmknfshfdiylek