>1xn1C (C:) observed residues (from ATOM records)
tsfkiafiqarwhadivdearksfvaelaaktggsveveifdvpgayeiplhaktlartg
ryaaivgaafvidggiyrhdfvatavingmmqvqletevpvlsvvltphhfheskehhdf
fhahfkvkgveaahaalqivsersria