>5k4jA (A:) observed residues (from ATOM records)
amenfqkvekigegtygvvykarnkltgevvalkkirvpstaireisllkelnhpnivkl
ldvihtenklylvfeflhqdlkkfmdasaltgiplpliksylfqllqglafchshrvlhr
dlkpqnllintegaikladfglaraevvtlwyrapeillgckyystavdiwslgcifaem
vtrralfpgdseidqlfrifrtlgtpdevvwpgvtsmpdykpsfpkwarqdfskvvppld
edgrsllsqmlhydpnkrisakaalahpffqdvtkpvphlrl