>1y6lC (C:) observed residues (from ATOM records)
stsakriqkelaeitldpppncsagpkgdniyewrstilgppgsvyeggvfflditfspd
ypfkppkvtfrtriyhcninsqgvicldilkdnwspaltiskvllsicslltdcnpadpl
vgsiatqymtnraehdrmarqwtkryat