>3r7yA (A:) observed residues (from ATOM records) menfqkvekigegtygvvykarnkltgevvalkkirtegvpstaireisllkelnhpniv klldvihtenklylvfeflhqdlkkfmdasaltgiplpliksylfqllqglafchshrvl hrdlkpqnllintegaikladfglarafgvpvrtythevvtlwyrapeillgckyystav diwslgcifaemvtrralfpgdseidqlfrifrtlgtpdevvwpgvtsmpdykpsfpkwa rqdfskvvppldedgrsllsqmlhydpnkrisakaalahpffqdvtkpvphlrl