>4cfnA (A:) observed residues (from ATOM records)
pgsmenfqkvekigegtygvvykarnkltgevvalkkirltegvpstaireisllkelnh
pnivklldvihtenklylvfeflhqdlkkfmdasaltgiplpliksylfqllqglafchs
hrvlhrdlkpqnllintegaikladfglarafgvpvrtythevvtlwyrapeillgckyy
stavdiwslgcifaemvtrralfpgdseidqlfrifrtlgtpdevvwpgvtsmpdykpsf
pkwarqdfskvvppldedgrsllsqmlhydpnkrisakaalahpffqdvtkpvphlr