>2xt3A (A:) observed residues (from ATOM records)
eeapvrvalrvrpllpkellhghqsclqvepglgrvtlgrdrhfgfhvvlaedagqeavy
qacvqplleaffegfnatvfaygqtgsgktytmgeadeqgivpramaeafklidendlld
clvhvsylevykeefrdllevgtasrdiqlredergnvvlcgvkevdvegldevlsllem
gnaarhthlssrshtvftvtlkqrgrapllvskfhfvdlagservlqinssllalgnvis
algdpqrrgsnipyrdskitrilkdslggnaktvmiacvspsssdfdetlntlnyasraq