>2pk2D (D:) observed residues (from ATOM records)
nnkrwyftreqlenspsrrfgvdpdkelsyrqqaanllqdmgqrlnvsqltintaivymh
rfymiqsftrfpgnsvapaalflaakveeqpkklehvikvahtclhpqeslpdtrseayl
qqvqdlvilesiilqtlgfeltidhphthvvkctqlvraskdlaqtsyfmatnslhlttf
slqytppvvacvcihlackwsnweipvstdgkhwweyvdatvtlelldeltheflqilek
tpnrlkriwnwracea