>3pxfA (A:) observed residues (from ATOM records)
spefmenfqkvekigegtygvvykarnkltgevvalkkirldtetegvpstaireisllk
elnhpnivklldvihtenklylvfeflhqdlkkfmdasaltgiplpliksylfqllqgla
fchshrvlhrdlkpqnllintegaikladfglarafgvpvrtythevvtlwyrapeillg
ckyystavdiwslgcifaemvtrralfpgdseidqlfrifrtlgtpdevvwpgvtsmpdy
kpsfpkwarqdfskvvppldedgrsllsqmlhydpnkrisakaalahpffqdvtkpvphl
rl