>1zkcA (A:) observed residues (from ATOM records)
ssglvprgsgyvrlhtnkgdlnlelhcdltpktcenfirlckkhyydgtifhrsirnfvi
qggdptgtgtggesywgkpfkdefrpnlshtgrgilsmansgpnsnrsqffitfrscayl
dkkhtifgrvvggfdvltamenvesdpktdrpkeeiridattvfvdpyeeadaqiaqerk
tqlkvap