>2ak3B (B:) observed residues (from ATOM records)
gasarllraaimgapgsgkgtvssritkhfelkhlssgdllrdnmlrgteigvlaktfid
qgklipddvmtrlvlhelknltqynwlldgfprtlpqaealdrayqidtvinlnvpfevi
kqrltarwihpgsgrvyniefnppktmgiddltgeplvqreddrpetvvkrlkayeaqte
pvleyyrkkgvletfsgtetnkiwphvyaflqtklpqrsqe