>6hu4D (D:) observed residues (from ATOM records)
mdidpykefgatvellsflpsdffpsvrdlldtasalyrealespehcsphhtalrqail
cwgelmtlatwvgvnledpasrdlvvsyvntnmglklrqllwfhiscltfgretvieylv
sfgvwirtppayrppnapilstlpettvv