>3prvD (D:) observed residues (from ATOM records)
tsertfiavkpdgvqrclvgeiiqrfekkgyklvalkmlqpsaeqaqqhyidlaskpfyk
dlvayfssgpivgmvwegkgvvkggrvllgatnpadslpgtirgdfavdvgrnvchgsds
vdsakreiafwfkpeelvnwtshsvkqvye