>1nf5B (B:) observed residues (from ATOM records)
ltacpeespllvgpmliefnipvdlklveqqnpkvklggrytpmdcisphkvaiiipfrn
rqehlkywlyylhpilqrqqldygiyvinqagesmfnrakllnvgfkealkdydyncfvf
sdvdlipmndhntyrcfsqprhisvamdkfgfslpyvqyfggvsalskqqflsingfpnn
ywgwggedddiynrlafrgmsvsrpnavigkcrmirhsrdkknepnpqrfdriahtketm
lsdglnsltymvlevqryplytkitvdigtps