>1t13A (A:) observed residues (from ATOM records)
ktsfkiafiqarwhadivdearksfvaelaaktggsveveifdvpgayeiplhaktlart
gryaaivgaafvidggiyrhdfvatavingmmqvqletevpvlsvvltphhfheskehhd
ffhahfkvkgveaahaalqivsersriaal