>2vtnA (A:) observed residues (from ATOM records)
menfqkvekigegtygvvykarnkltgevvalkkirpstaireisllkelnhpnivklld
vihtenklylvfeflhqdlkkfmdasaltgiplpliksylfqllqglafchshrvlhrdl
kpqnllintegaikladfgvtlwyrapeillgckyystavdiwslgcifaemvtrralfp
gdseidqlfrifrtlgtpdevvwpgvtsmpdykpsfpkwarqdfskvvppldedgrslls
qmlhydpnkrisakaalahpffqdvtkpvphlrl