>3tnwA (A:) observed residues (from ATOM records)
smenfqkvekigegtygvvykarnkltgevvalkkirltegvpstaireisllkelnhpn
ivklldvihtenklylvfeflhqdlkkfmdasaltgiplpliksylfqllqglafchshr
vlhrdlkpqnllintegaikladfglarafgvpvrtythevvtlwyrapeillgckyyst
avdiwslgcifaemvtrralfpgdseidqlfrifrtlgtpdevvwpgvtsmpdykpsfpk
warqdfskvvppldedgrsllsqmlhydpnkrisakaalahpffqdvtkpvphlrl