>3prvC (C:) observed residues (from ATOM records)
mtsertfiavkpdgvqrclvgeiiqrfekkgyklvalkmlqpsaeqaqqhyidlaskpfy
kdlvayfssgpivgmvwegkgvvkggrvllgatnpadslpgtirgdfavdvgrnvchgsd
svdsakreiafwfkpeelvnwtshsvkqvye