>2i40A (A:) observed residues (from ATOM records)
menfqkvekigegtygvvykarnkltgevvalkkirltegvpstaireisllkelnhpni
vklldvihtenklylvfeflhqdlkkfmdasaltgiplpliksylfqllqglafchshrv
lhrdlkpqnllintegaikladfglarafgvpvrtyvvtlwyrapeillgckyystavdi
wslgcifaemvtrralfpgdseidqlfrifrtlgtpdevvwpgvtsmpdykpsfpkwarq
dfskvvppldedgrsllsqmlhydpnkrisakaalahpffqdvtkpvphlr